Author Interviews, JAMA, Pediatrics, Social Issues / 28.12.2018

MedicalResearch.com Interview with: [caption id="attachment_46736" align="alignleft" width="133"]Dr. Richard E. Tremblay, PhD, Professor Department of Pediatrics and Department of Psychology University of Montreal, Montreal, Quebec, Canada School of Public Health, University College Dublin, Dublin, Ireland Dr. Tremblay[/caption] Dr. Richard E. Tremblay, PhD, Professor Department of Pediatrics and Department of Psychology University of Montreal, Montreal, Quebec, Canada School of Public Health, University College Dublin, Dublin, Ireland MedicalResearch.com: What is the background for this study?   Response: Adolescent who have frequently use physical aggression are at high risk of school failure, criminal behavior, as well as physical and mental health problems. A major limit to preventive interventions is our ability to trace the developmental trajectories of physical aggression from infancy to adolescence using a uniform source of information.
Author Interviews, Education, JAMA, OBGYNE, Pediatrics, Social Issues / 21.12.2018

MedicalResearch.com Interview with "Pregnancy 1" by operalynn is licensed under CC BY 2.0Josephine Funck Bilsteen, MSc Department of Pediatrics, Hvidovre University Hospital, Hvidovre, Section of Epidemiology, Department of Public Health University of Copenhagen Copenhagen, Denmark MedicalResearch.com: What is the background for this study? What are the main findings?  Response: The background of this study is that there is increasing recognition of the longer-term health and social outcomes associated with preterm birth such as independent living, quality of life, self-perception and socioeconomic achievements. However, much less is known about differences in education and income among adults born at different gestational weeks in the term period. In this study shorter gestational duration, even within the term range, was associated with lower chances of having a high personal income and having completed a secondary or tertiary education at age 28 years. This is the first study to show that adults born at 37 and 38 completed weeks of gestation had slightly lower chances of having a high income and educational level than adults born at 40 completed weeks of gestation. 
Author Interviews, Orthopedics, Pediatrics / 19.12.2018

MedicalResearch.com Interview with: [caption id="attachment_46653" align="alignleft" width="160"]Dana L. Duren, PhD Professor, Director of Orthopaedic Research Director of Skeletal Morphology Laboratory Thompson Laboratory for Regenerative Orthopaedics Department of Orthopaedic Surgery Missouri Orthopaedic Institute, University of Missouri Columbia, MO 6521 Dr. Duren[/caption] Dana L. Duren, PhD Professor, Director of Orthopaedic Research Director of Skeletal Morphology Laboratory Thompson Laboratory for Regenerative Orthopaedics Department of Orthopaedic Surgery Missouri Orthopaedic Institute, University of Missouri Columbia, MO 6521 MedicalResearch.com: What is the background for this study? What are the main findings? Response: The motivation for this study is the apparent accelerated maturity in children in the United States. [caption id="attachment_46650" align="alignleft" width="139"]Radiogram of distal tibia (left) and fibula (right) showing two epiphyseal plates. Wikipedia Image Radiogram of distal tibia (left) and fibula (right) showing two epiphyseal plates.
Wikipedia Image[/caption]   We previously demonstrated that skeletal maturity (bone age) is more advanced in today’s children compared to children born in the first half of the 20thCentury (Duren et al., 2015). n the current study (Boeyer et al., 2018) we show that a significant component of this advanced maturity status is the timing of epiphyseal fusion. In our study, nearly half of the epiphyses of the hand and wrist began or completed fusion significantly earlier in children born after 1995 than those born in the early part of the century, with differences as great as six to ten months for some bones, and mean differences on the order of 4 months in boys and 6 months in girls. 
Author Interviews, Brigham & Women's - Harvard, JAMA, OBGYNE, Pediatrics / 19.12.2018

MedicalResearch.com Interview with: [caption id="attachment_27170" align="alignleft" width="179"]Krista F. Huybrechts, M.S., Ph.D. Assistant Professor of Medicine at Harvard Medical School Epidemiologist in the Division of Pharmacoepidemiology and Pharmacoeconomics Brigham and Women’s Hospital. Boston, MA 02120 Dr. Krista Huybrechts[/caption] Krista F. Huybrechts, MS PhD Associate Professor of Medicine Brigham and Women’s Hospital Harvard Medical School Boston, MA 02120  MedicalResearch.com: What is the background for this study? What are the main findings?  Response: Pregnant women often experience nausea and vomiting, particularly during the first trimester.  Early treatment is recommended to relieve symptoms and prevent progression to hyperemesis gravidarum.  Although not formally approved for this indication, ondansetron is the most frequently prescribed treatment for nausea and vomiting in pregnancy in the US: 22% of pregnant women reportedly used ondansetron in the US in 2014. Despite this common use, the available evidence on the fetal safety of ondansetron is limited and conflicting, and the possibility of a doubling in risk of cleft palate and cardiac malformations has been raised. We therefore evaluated the association between ondansetron exposure during the first trimester of pregnancy, the period of organogenesis, and the risk of congenital malformations in a cohort of 1,816,414,publicly insured pregnancies using the nationwide Medicaid Analytic eXtract data for 2000-2013.  A total of 88,467 women (4.9%) were exposed to ondansetron during the first trimester.  After adjusting for a broad range of potential confounding variables, we found no association with cardiac malformations (RR = 0.99; 95% CI, 0.93 – 1.06)  and congenital malformations overall (RR = 1.01; 95% CI, 0.98 – 1.05). For oral clefts, we found a 24% increase in risk (RR=1.24; 95% CI, 1.03 – 1.48), which corresponds to an absolute risk of 2.7 per 10,000 births (95% CI, 0.2 – 5.2 per 10,000 births).  These findings were consistent across sensitivity analyses, conducted to address potential misclassification and confounding bias. 
Author Interviews, Brigham & Women's - Harvard, Cannabis, JAMA, Mental Health Research, Pediatrics / 19.12.2018

MedicalResearch.com Interview with: [caption id="attachment_46574" align="alignleft" width="132"]Sharon Levy, MD, MPH Director, Adolescent Substance Use and Addiction Program Boston Children's Hospital Associate Professor of Pediatrics Harvard Medical School Dr. Levy[/caption] Sharon Levy, MD, MPH Director, Adolescent Substance Use and Addiction Program Boston Children's Hospital Associate Professor of Pediatrics Harvard Medical School  MedicalResearch.com: What is the background for this study? What are the main findings? Response: ​For this study we analyzed data that were collected as part of a larger survey study that recruited a sample of adolescents who were coming to the doctor's office for routine medical care.  We asked them a lot of questions about their health, school, extracurricular activities, plans for the future, substance use patterns and problems associated with use among other things. The main finding was that among the participants who reported marijuana use in the past year, many of them, more than 40%, said that they had experienced either an hallucination, or paranoia/anxiety related to their use. Kids who used more frequently and those who met criteria for a substance use disorder were more likely to experience these symptoms, as were those who had symptoms of depression
Allergies, Author Interviews, OBGYNE, Pediatrics / 18.12.2018

MedicalResearch.com Interview with: [caption id="attachment_46660" align="alignleft" width="133"]Dr-Karen Robbins Dr. Robbins[/caption]  Karen Robbins, M.D. Allergist at Children’s National Health System  MedicalResearch.com: What is the background for this study? What are the main findings? Response: The background is that mothers are often concerned that something they did contributed to their children developing food allergies. Many will relate that they ate a lot of one specific food allergen while pregnant, and question how this could have impacted their unborn child. We realized that we hear a lot of anecdotal stories in clinic, but were not sure how frequently mothers try to alter their diet in the hopes of preventing food allergy in their children. We also were not sure where families get information or guidance on this topic.
ADHD, Author Interviews, Autism, JAMA, Pediatrics, UC Davis / 10.12.2018

MedicalResearch.com Interview with: [caption id="attachment_46451" align="alignleft" width="150"]Meghan Miller, Ph.D. Assistant Professor Department of Psychiatry & Behavioral Sciences UC Davis MIND Institute Sacramento, CA 95817 Dr. Miller[/caption] Meghan Miller, Ph.D. Assistant Professor Department of Psychiatry & Behavioral Sciences UC Davis MIND Institute Sacramento, CA 95817 MedicalResearch.com: What is the background for this study? What are the main findings? Response: This study evaluated within-diagnosis sibling recurrence and sibling cross-aggregation of ADHD and autism spectrum disorder among later-born siblings of diagnosed children. We specifically chose to include only families who had at least one subsequent child after the diagnosis of an older child because failing to do so could bias recurrence risk estimates. We found that, compared to later-born siblings of non-diagnosed children, later-born siblings of children with autism were more likely to be diagnosed with autism or with ADHD. Likewise, compared to later-born siblings of non-diagnosed children, later-born siblings of children with ADHD were more likely to be diagnosed with ADHD or with autism.
Author Interviews, Hematology, Leukemia, Pediatrics / 05.12.2018

MedicalResearch.com Interview with: [caption id="attachment_46330" align="alignleft" width="200"]Charles G. Mullighan, MBBS (Hons), MSc, MD Member, St. Jude Faculty Co-Leader, Hematological Malignancies Program Medical Director, St. Jude Biorepository William E. Evans Endowed Chair St. Judes Children’s Research Hospital Memphis, TN Dr. Mullighan[/caption] Charles G. Mullighan, MBBS (Hons), MSc, MD Member, St. Jude Faculty Co-Leader, Hematological Malignancies Program Medical Director, St. Jude Biorepository William E. Evans Endowed Chair St. Judes Children’s Research Hospital Memphis, TN MedicalResearch.com: What is the background for this study?   Response: B-lineage acute lymphoblastic leukemia (B-ALL) is the commonest form of ALL, and the commonest childhood tumor. It is a leading cause of childhood cancer death. It consists of multiple subtypes defined by genetic alterations. These are often chromosomal translocations that deregulate oncogenes or form fusion proteins. These alterations are disease initiating events and are associated with distinct patterns of leukemic cell gene expression. Most subtypes also have additional mutations that are important for cells to become fully leukemic. Identifying these initiating genetic changes is very important to identify patients that are likely to respond or do poorly with conventional therapy (multiagent chemotherapy). Also, some identify new opportunities for targeted therapy. However, using standard genetic testing approaches such as chromosomal cytogenetics, about 30% of B-ALL patients don’t have a subtype classifying alteration.
ADHD, Author Interviews, Pediatrics, Race/Ethnic Diversity / 05.12.2018

MedicalResearch.com Interview with: [caption id="attachment_46390" align="alignleft" width="136"]George J. DuPaul, PhD Department of Education and Human Services Lehigh University Dr. DuPaul[/caption] George J. DuPaul, PhD Department of Education and Human Services Lehigh University [caption id="attachment_46407" align="alignleft" width="144"]Charles Barrett. Ph.D. School Psychologist Lehigh University Dr. Barrett[/caption]   Charles Barrett. Ph.D. School Psychologist Loudon County Virginia Public Schools   MedicalResearch.com: What is the background for this study? What are the main findings? Response: Numerous studies have shown that Black children are more likely to receive ratings that are more indicative of displaying externalizing behavior difficulties, including Attention Deficit Hyperactivity Disorder (ADHD).  However, many of these studies included teachers as the informants. Consistent with most teachers in the United States, raters have typically been White females.  For this reason, it is unclear if these outcomes would exist if the rater and child shared the same racial/ethnic background. Additionally, most research in the United States that involved cross-cultural comparisons has used White and Hispanic boys.  Few empirical studies have examined differences between Black and White boys. The present study sought to address several limitations in the field.  Most notably, cross-cultural comparisons between Black and White boys were included instead of Hispanic and White children.  Next, maternal figures, rather than teachers, were included as the informants. The present study was developed using a similar methodology that examined Hispanic and White boys’ behavior from the perspective of Hispanic and White teachers (Dominguez de Ramirez & Shapiro, 2005). In sum, we sought to determine if there were differences in how Black and White maternal figures rated Black and White boys who were demonstrating the same level/type of behavior (i.e., sub-clinical levels of ADHD).  Notably, although the boys’ behaviors were the same, maternal ratings were not identical. Specifically, using the ADHD Rating Scale, Fourth Edition (ARS-4), Black mothers assigned higher ratings to both Black and White boys.
Author Interviews, Autism, Pediatrics / 05.12.2018

MedicalResearch.com Interview with: Michael Kogan, Ph.D. Director of the office of Epidemiology and Research Health Resources and Services Administration’s Maternal and Child Health Bureau MedicalResearch.com: What is the background for this study? What are the main findings? Response: This was a study led by the Health Resources and Services Administration’s Maternal and Child Health Bureau, along with researchers from the Centers from Disease Control and Prevention, Harvard, Drexel, and George Washington Universities.  We used the 2016 National Survey of Children’s Health, a nationally representative survey of over 50,000 children that examines the health and well-being of US children, to examine the prevalence, treatment, and health care experiences of children with Autism Spectrum Disorder (ASD). We found that 1 out of 40 children in the US were reported by their parents to have been diagnosed with Autism Spectrum Disorder.  We also found that children with ASD were significantly less likely to receive services like needed care coordination, referrals to other services, and mental health counseling – even compared to children with other emotional, behavioral or developmental disorders (EBDs).  Parents of children with ASD were also significantly more likely to report being usually or always frustrated in their attempts to get services, again compared to families of children with other EBDs. Finally, we looked at treatment patterns for children with ASD and found that 64% had received behavioral therapy in the year before the interview, and 27% had received medications to treat symptoms of irritability. 
Author Interviews, Dental Research, JAMA, Opiods, Pediatrics / 03.12.2018

MedicalResearch.com Interview with: [caption id="attachment_46275" align="alignleft" width="200"]Alan Schroeder MD Associate chief for research Division of pediatric hospital medicine Lucile Packard Children’s Hospital Stanford Dr. Schroeder[/caption] Alan Schroeder MD Associate Chief for Research Division of pediatric hospital medicine Lucile Packard Children’s Hospital Stanford MedicalResearch.com: What is the background for this study? What are the main findings? Response: Third molar “wisdom teeth” extractions are one of the most common surgeries performed in adolescents and young adults, but an adequate appraisal of risks and benefits is lacking. Most patients who undergo this procedure are exposed to opioids post-operatively. We demonstrate that, for privately-insured opioid-naïve patients 16-25 years of age, exposure to opioids from a dental provider is associated with persistent use at 90-365 days in 7% of patients and a subsequent diagnosis relating to abuse in 6% of patients. In contrast persistent use and abuse were significantly lower in control patients not exposed to dental opioids (0.1% and 0.4%, respectively). The median number of pills dispensed for the initial prescriptions was 20.
Accidents & Violence, Author Interviews, JAMA, Pediatrics, USPSTF / 28.11.2018

MedicalResearch.com Interview with: [caption id="attachment_46250" align="alignleft" width="200"]Alex Kemper, M.D., M.P.H., M.S.  Dr. Kemper[/caption] Alex Kemper, M.D., M.P.H., M.S.  Dr. Kemper is a board-certified pediatrician and chief of the Division of Ambulatory Pediatrics at Nationwide Children’s Hospital. He is also the deputy editor of Pediatrics. MedicalResearch.com: What is the background for this recommendation statement? What are the main findings and recommendations?  Response: Child maltreatment, which includes abuse and neglect, is a serious health problem that affects too many children in the United States.  Abuse and neglect can have devastating health consequences, including long-term disabilities, depression, physical injury, and even death. In 2016, approximately 676,000 children were subjected to maltreatment, and more than 1,700 children died as a result. Because this is such an important public health issue, the U.S. Preventive Services Task Force looked at the most recent evidence on whether primary care clinicians can help prevent child maltreatment and its negative consequences. We found that, unfortunately, there is not enough evidence to recommend for or against these interventions. The Task Force is calling for more research on this important subject so that we can help prevent children from being abused and neglected.   
Author Interviews, Autism, Nature, Pediatrics / 27.11.2018

MedicalResearch.com Interview with: [caption id="attachment_46215" align="alignleft" width="149"]Michael Lombardo, PhD Assistant professor of Psychology the University of Cyprus  Dr. Lombardo[/caption] Michael Lombardo, PhD Assistant professor of Psychology the University of Cyprus  MedicalResearch.com: What is the background for this study? Response: Autism is a diagnostic label we give to children with difficulties in the areas of social-communication and restricted, repetitive stereotyped behaviors and interests. The diagnosis is made based on observations about behavior and is a consensus label, meaning that clinicians can show high degrees of agreement that a given set of behaviors is ‘autism’. But aside from the diagnostic label, there is a fair degree of heterogeneity within patients that have the diagnosis. One way in which patients are heterogeneous is with regard to early language development. Some toddlers with autism are minimally verbal, while at the other end, many toddlers with autism develop language typically. An important question to answer is whether that kind of difference in language development indicates a subtype with different underlying biology. To examine this question, we first split toddlers with autism into two subtypes defined by their language outcome at 4 years of age. Some toddlers were classified as poor language outcome, because their language performance was 1 standard deviation below typical norms. Other toddlers with autism had relatively good language outcome, as their language performance by 4 years of age was within 1 standard deviation of typical norms. We also measured the biology behind these two autism subtypes. First we used functional magnetic resonance imaging (fMRI), which is a non-invasive method to look at blood oxygenation response that changes according to a task. Blood oxygenation changes are an indirect measure of neural activity. We used fMRI during natural sleep at around 29 months of age while the toddlers were played language stimuli through headphones to elicit neural responses to speech. Second, we measured molecular aspects of biology, by taking blood samples, isolating leukocyte cells, and then quantifying gene expression for all protein coding genes in the genome, at around the same time as the fMRI scan.
Author Interviews, Gastrointestinal Disease, Microbiome, NEJM, Pediatrics, Probiotics / 22.11.2018

[caption id="attachment_46070" align="alignleft" width="155"]Stephen Freedman MDCM, MSc Alberta Children's Hospital Foundation Professor in Child Health and Wellness Sections of Pediatric Emergency Medicine and Gastroenterology Alberta Children's Hospital & Research Institute University of Calgary Calgary, AB Dr. Freedman[/caption] MedicalResearch.com Interview with: Stephen Freedman MDCM, MSc Alberta Children's Hospital Foundation Professor in Child Health and Wellness Sections of Pediatric Emergency Medicine and Gastroenterology Alberta Children's Hospital & Research Institute University of Calgary Calgary, AB  MedicalResearch.com: What is the background for this study? Response: Vomiting and diarrhea remain extremely common diseases in children and are the most common reason children are brought for emergency department care in North America.  While we have options to reduce vomiting there historically has been little physicians can offer to reduce the severity of the diarrhea. Probiotics have recently emerged as an option with some early evidence of benefit in clinical trials but the studies performed to date have been small and few little research has been conducted in North America in outpatient or emergency department children. The one study to date that was performed in a US emergency department did not find probiotic use to be beneficial.  Given the increasing importance of clarifying this issue we undertook this study.
Accidents & Violence, Author Interviews, Pediatrics / 20.11.2018

MedicalResearch.com Interview with: "Pondering a firearm" by Dan Foy is licensed under CC BY 2.0Erin Morgan PhD Student | Department of Epidemiology University of Washington MedicalResearch.com: What is the background for this study? What are the main findings? Response: Going into this study we were interested in looking at youth exposure to unsafely stored firearms. Unsafely stored firearms in the household, especially those that are stored unlocked, are a known risk factor for adolescent suicide. We were also interested in looking into a population of children and teens who are at particularly heightened risk for suicide and unintentional injury—those living with an adult who misuses alcohol. Overall, we found that about 30% of those under the age of 18 live in a firearm owning home and among those youth, around 55% lived with a firearm stored in a way other than locked and unloaded. Among those in firearm owning household, we also found that when compared to youth living with a survey respondent that did not report alcohol misuse, those living with an adult that did misuse alcohol were 20% more likely to reside in a home where the firearm was stored unsafely; children were 27% more likely to live in a home reporting unlocked storage, specifically.
Author Interviews, JAMA, Ophthalmology, Pediatrics / 19.11.2018

MedicalResearch.com Interview with: "i have a lazy eye but it's a good thing" by jessica mullen is licensed under CC BY 2.0Eileen E. Birch, PhD Director, Crystal Charity Ball Pediatric Vision Evaluation Center Retina Foundation of the Southwest Adjunct Professor of Ophthalmology UT Southwestern Medical Center   MedicalResearch.com: What is the background for this study? What are the main findings?  Response: We previously reported that amblyopia, but not nonamblyopic strabismus or anisometropia, is associated with slower reading speed (Kelly et al  Journal of AAPOS 2015) and that this is related to abnormal eye movements and unstable fixation associated with amblyopia (Kelly et al 2017).  We have also shown that amblyopic children are slower at completing Scantron answer sheets (JAMA Ophthalmology 2018).  We thought that these difficulties experiences in school-age children with amblyopia might affect their self-perception.
Author Interviews, Global Health, Heart Disease, JAMA, Pediatrics, Surgical Research / 17.11.2018

MedicalResearch.com Interview with: [caption id="attachment_45975" align="alignleft" width="144"]Marcelo G. Cardarelli, MD A member of Inova Medical Group Dr. Cardarelli[/caption] Marcelo G. Cardarelli, MD Inova Children’s Hospita Fairfax, Falls Church, Virginia MedicalResearch.com: What is the background for this study? What are the main findings? Response: Global Humanitarian Medical efforts consume a large amount of resources (nearly $38B in 2016) and donors (Countries, International organizations, WHO, Individuals) make the decisions as to where their funds should be allocated based on cost-effectiveness studies. Most resources go to prevent/treat infectious diseases, sanitation efforts and maternal/child care issues. An insignificant amount of resources is directed to satisfy the surgical needs of the populations in low and middle income countries (LMICs). The idea behind our project was to find out if it was cost-effective to perform a tertiary surgical specialty (pediatric cardiac surgery) in this context and the answer (at $171 per DALY averted) was an overwhelming yes! But most importantly, we believe, as many others do, that judging the cost/effectiveness of an intervention in order to decide resources allocation is valid for diseases that can be prevented, but not relevant when it comes to surgical problems that are not preventable. Instead, we propose the use of another measure of effectiveness, what we call "The Humanitarian Footprint". The Humanitarian Footprint represents the long term benefits, as measured by changes in the life expectancy, extra years of schooling and potential lifetime earnings of patients treated surgically during humanitarian interventions. To our surprise and based on the results, the effects on society of at least this particular surgical intervention were greater than we expected. We suspect this measure can be used in many other surgical humanitarian interventions as well. 
Allergies, Author Interviews, Pediatrics / 16.11.2018

MedicalResearch.com Interview with: Eliane Abou-Jaoude, MD  Allergy and Immunology Fellow Henry Ford Health System Detroit, MichiganEliane Abou-Jaoude, MD  Allergy and Immunology Fellow Henry Ford Health System Detroit, Michigan MedicalResearch.com: What is the background for this study? Response: Early life exposure to diverse types of microbes is necessary for healthy immune development and may impact the risk for developing allergic disorders. Theoretically the transfer of parental microbes to their offspring during infancy can influence a child’s developing gut microbiome and subsequent immune response patterns. We wished to investigate whether parental pacifier cleaning methods, reported at 6-months of age, were associated with altered serum IgE trajectory over the first 18 months of life. 
Author Interviews, Gastrointestinal Disease, Microbiome, Pediatrics / 16.11.2018

MedicalResearch.com Interview with: [caption id="attachment_46046" align="alignleft" width="180"]Thomas Thymann PhD DVM MSc Department of Veterinary and Animal Sciences Comparative Pediatrics and Nutrition Faculty of Health and Medical Sciences University of Copenhagen Frederiksberg, Denmark Prof. Thymann[/caption] Thomas Thymann PhD DVM MSc Department of Veterinary and Animal Sciences Comparative Pediatrics and Nutrition Faculty of Health and Medical Sciences University of Copenhagen Frederiksberg, Denmark MedicalResearch.com: What is the background for this study? What are the main findings? Response: Infants that are born preterm are at risk of developing a severe and life threatening intestinal disease referred to as necrotizing enterocolitis (NEC). This condition is known to be under influence of several factors including the microorganisms that start to colonize the intestine immediately after birth. We wanted to see whether fecal matter collected from healthy 10-day old piglets, would benefit the pattern of early colonization, and prevent NEC.
Allergies, Asthma, Author Interviews, Pediatrics, Science / 16.11.2018

MedicalResearch.com Interview with: "Dogs and Kids Mix Well" by Tony Alter is licensed under CC BY 2.0Catarina Almqvist Malmros MD, PhD Professor | Consultant Pediatrician Dept of Medical Epidemiology and Biostatistics | Karolinska Institutet Lung and Allergy Unit | Astrid Lindgren Children’s Hospital Stockholm, Sweden MedicalResearch.com: What is the background for this study? What are the main findings? Response: We have previously shown an association between growing up with dogs and a lower risk of childhood asthma (doi: 10.1001/jamapediatrics.2015.3219) but it has been unknown whether this link is modified by characteristics of the dog. Sex of the dog may have an effect on expressed allergens, and uncastrated male dogs release more of a certain allergen than castrated male dogs and female dogs. Some breeds are also described as ‘hypoallergenic’, but there is no scientific evidence whether they are more suitable for people with allergies. We examined how variables such as sex, breed, number of dogs or size of dog are associated with the risk of asthma and allergy among children with a dog in their home during the first year of life. We included all Swedish children born between January 2001 and December 2004 whose parents had a registered dog in a dog-owner register and linked the data to the Swedish population- and health data registers. Main findings are that children raised with only female dogs at home had a 16 per cent lower risk of asthma than those with male dogs, and that children living with two or more dogs had a 21 per cent lower risk of asthma than those with only one dog. Importantly, families with parental asthma or allergies had ‘hypoallergenic’ breeds more often than children whose parents did not have asthma or allergies; 11.7% compared to 7.6 . Exposure to these breeds was associated with a 27 per cent higher risk of allergy and no decreased risk of asthma. 
Author Interviews, Autism, Environmental Risks, JAMA, Pediatrics / 16.11.2018

MedicalResearch.com Interview with: "Cairo Air Pollution with less smog - Pyramids1" by Nina Hale is licensed under CC BY 2.0Lief Pagalan, MSc Faculty of Health Sciences, Simon Fraser University Research Trainee, Centre for Hip Health and Mobility Vancouver Coastal Health Research Institute MedicalResearch.com: What is the background for this study? What are the main findings? Response: Pregnant women more heavily exposed to air pollution had higher chances of having children with autism spectrum disorder (ASD). The causes of ASD are not fully understood, but this study adds to the growing evidence that environmental risk factors have a role to play. Our study found an association between autism spectrum disorder in the children of women more heavily exposed to air pollution. We observed these results using well-defined cases of ASD and in Vancouver, Canada, which typically has lower air pollution. These findings are consistent with studies done in the U.S., Israel, and Taiwan, which have also found an increased risk of ASD from exposure to air pollution. 
Author Interviews, Environmental Risks, NIH, Nutrition, OBGYNE, Pediatrics / 14.11.2018

MedicalResearch.com Interview with: "Baby Bottle" by brokinhrt2 is licensed under CC BY 2.0Kristen Upson, PhD, MPH and Donna D. Baird, PhD Epidemiology Branch National Institute of Environmental Health Sciences Research Triangle Park, NC 27709  MedicalResearch.com: What is the background for this study? What are the main findings?  Response: Menstrual pain is the most common menstrual complaint and can substantially affect the quality of women’s lives. A prior study in young adults who participated in feeding studies as infants reported an increased risk of greater menstrual pain severity in adulthood with soy formula feeding. Since that study, evidence from laboratory animal studies support the disruptive effects of a phytoestrogen present in soy formula, genistein, on reproductive system development, including aspects involved in menstrual pain. The laboratory animal studies also demonstrate that the developmental changes with genistein can persist into adulthood. Given these results, we were interested in further evaluating the association between infant soy formula feeding and menstrual pain in a cohort of young women. In our study of women ages 23-35 years old, we observed that soy formula feeding during infancy was associated with several indicators of severe menstrual pain in reproductive-age women. This included a 40% increased risk of ever using hormonal contraception for menstrual pain and 50% increased risk of moderate/severe menstrual discomfort with most periods during early adulthood. 
Author Interviews, Nutrition, Pediatrics / 12.11.2018

MedicalResearch.com Interview with: Allison Bovell-Ammon, M.Div. Deputy Director of Policy Strategy Children's HealthWatchAllison Bovell-Ammon, M.Div. Deputy Director of Policy Strategy Children's HealthWatch MedicalResearch.com: What is the background for this study?   Response: Children’s HealthWatch was founded in 1998 by pediatric providers treating children with failure to thrive in six US cities across the country. They began their research on the health impacts of economic hardships like food insecurity in response to the 1996 welfare reform legislation after witnessing deteriorating health among young children in their clinics as a result of welfare sanctions on families. Over the years, the scope of the research has expanded to include research on food insecurity, housing instability, energy insecurity, health care hardships, and child care constraints. Through our current network of pediatricians and public health researchers in five US cities (Boston, Baltimore, Little Rock, Minneapolis, and Philadelphia), we seek to improve the health and well-being of children under age 4 and their families by informing policies that address and alleviate economic hardships. Our ongoing data collection in emergency departments and primary care clinics enables us to rapidly respond to emerging public health issues as policies and economic conditions change. While we have produced other papers and analyses specifically addressing health and economic disparities relevant to immigrant families, we were specifically interested in exploring this topic because the clinicians in our group as well as national media began anecdotally reporting that immigrants were forgoing accessing critical public health programs like SNAP out of fear.
Author Interviews, BMJ, Obstructive Sleep Apnea, Pediatrics, Sleep Disorders, Surgical Research / 09.11.2018

MedicalResearch.com Interview with: [caption id="attachment_45826" align="alignleft" width="200"]A pair of tonsils after surgical removal Wikipedia image A pair of tonsils after surgical removal
Wikipedia image[/caption] Tom Marshall, MSc, PhD, MRCGP, FFPH Professor of public health and primary care Institute of Applied Health Research University of Birmingham, Birmingham, UK MedicalResearch.com: What is the background for this study?   Response: Tonsillectomy is one of the most common childhood surgical procedures. There are two main indications: recurrent sore throat and sleep-related breathing problems (including obstructive sleep apnoea). Jack Paradise’s 1984 study made clear tonsillectomy is modestly effective in children with frequent, severe sore throats: seven in one year, or five yearly in two successive years, or three yearly in three successive years. Sore throats must have symptoms: fever, pus seen on tonsils, lymphadenopathy or confirmed Streptococcal infection. With surgery, children average two sore throats in the next year, without surgery, three. Two years later there is no difference. Further research shows the benefits are too tiny to justify surgery in children with less frequent, less severe or undocumented sore throats. Subsequent randomised controlled trials have not changed the evidence. There isn’t enough good evidence to support surgery in children with obstructive sleep apnoea or sleep related breathing problems. Tonsillectomy is not a trivial procedure, about 2% are readmitted with haemorrhage and about 1 in 40,000 dies. Childhood tonsillectomy is linked to risk of adult autoimmune diseases. It is important to be sure tonsillectomy is only undertaken in children where there are evidence-based indications.
Author Interviews, Infections, Pediatrics, Pulmonary Disease / 08.11.2018

MedicalResearch.com Interview with: [caption id="attachment_45813" align="alignleft" width="133"]Andrea Hahn, M.D., MS Infectious disease specialist and lead study author Children's National Health System Dr. Hahn[/caption] Andrea Hahn, M.D., MS Infectious disease specialist and lead study author Children's National Health System MedicalResearch.com: What is the background for this study? What are the main findings? Response: People who have the genetic disease cystic fibrosis have increased sticky secretions in their lungs that put them at risk for repeated bacterial infections. They often will receive courses of intravenous antibiotics to treat more severe or difficult-to-treat infections associated with decreased lung function. However, not all patients fully recover their lung function after antibiotic treatment, despite directing antibiotic therapy toward the specific bacteria thought to be causing the infection. The goal of this study was to determine if the pharmacokinetics of commonly used antibiotics was associated with recovery of lung function. First, we found that patients with therapeutic blood levels of beta-lactam antibiotics had better lung recovery than patients with sub-therapeutic levels of these antibiotics. Second, we found that using higher antibiotic dosing according to Cystic Fibrosis Foundation guidelines was not sufficient to predict which patients would have therapeutically meaningful blood levels of antibiotics.
Anesthesiology, Author Interviews, JAMA, Pediatrics, Surgical Research / 08.11.2018

MedicalResearch.com Interview with: "Anesthesia" by Liran Szeiman is licensed under CC BY-NC-ND 4.0James D. O’Leary, MD Department of Anesthesia and Pain Medicine, Child Health Evaluative Sciences The Hospital for Sick Children Department of Anesthesia, University of Toronto Toronto, Ontario, Canada MedicalResearch.com: What is the background for this study? What are the main findings? Response: There is substantial evidence from laboratory studies that the developing brain is susceptible to injury from general anesthetic drugs, which culminated in the US Food Drug Administration issuing a safety communication in 2017 stating that the use of general anaesthetic drugs “for lengthy periods of time or over multiple surgeries or procedures may negatively affect brain development in children younger than 3 years”. Considering the substantial number of children who require general anesthesia every year (almost 3 million in the US annually) even small differences in child development outcomes after surgical procedures that require general anesthesia may have significant public health implications. Undertaking studies of anesthesia-related neurotoxicity in humans is difficult as adverse child development is a function of the complex interaction between many risk and protective factors. By examining differences between biological siblings in Ontario, Canada, this study seeks to mitigate differences in risk from biological vulnerability and environmental factors, to provide a more accurate estimate of the adverse effects of anesthesia and surgery on child development. In the current study, young children who had surgical procedures that require general anesthesia were not found to be at increased risk of adverse child development outcomes compared to their biological siblings who did not have surgery. These findings further support that exposure to anesthesia and surgery in early childhood is not associated with detectable adverse child development outcomes.
Author Interviews, BMJ, Global Health, Pediatrics / 07.11.2018

MedicalResearch.com Interview with: Professor Ngianga-Bakwin Kandala Professor of Biostatistics Department: Mathematics, Physics and Electrical Engineering Northumbria University, UKProfessor Ngianga-Bakwin Kandala Professor of Biostatistics Department: Mathematics, Physics and Electrical Engineering Northumbria University, UK  MedicalResearch.com: What is the background for this study? What are the main findings?  Response: The background “UNICEF (2014) estimates that worldwide more than two hundred million women have undergone some form of FGM/C, and approximately 3.3 million girls are cut each year. Recent estimates show that if FGM/C practices continue at current, 68 million girls will be cut between 2015 and 2030 in 25 countries where FGM is routinely practiced and more recent data are available (UNJP, 2018).” Main findings: The prevalence of FGM/C among children varied greatly between countries and regions and also within countries over the survey periods. We found evidence of significant decline in the prevalence of FGM/C in the last three decades among children aged 0–14 years in most of the countries and regions, particularly in East, North and West Africa. We show that the picture looks different in Western Asia, where the practice remains and affects the same age group.
Author Interviews, Opiods, Pediatrics, Social Issues / 07.11.2018

MedicalResearch.com Interview with: [caption id="attachment_45758" align="alignleft" width="157"]Troy Quast, PhD Associate Professor in the University South Florida College of Public Health Dr. Quast[/caption] Troy Quast, PhD Associate Professor in the University South Florida College of Public Healt MedicalResearch.com: What is the background for this study? What are the main findings? Response: One of the cited repercussions of the opioid epidemic is its effect on families. However, there is considerable variation in opioid misuse across the county. This is the first nation-wide study to investigate the relationship between opioid prescription rates and child removals at the state level. I found that there are significant differences across states in the relationship between opioid prescription and child removal rates associated with parental substance abuse. In twenty-three states, increases in opioid prescription rates were associated with increases in the child removal rate. For instance, in California a 10% increase in the county average prescription rate was associated with a 28% increase in the child removal rate. By contrast, in fifteen states the association was flipped, where increases in the opioid prescription rate were associated with decreases in the child removal rate. There was no statistically significant relationship in the remaining states. 
Allergies, Author Interviews, Pediatrics / 06.11.2018

MedicalResearch.com Interview with: [caption id="attachment_45708" align="alignleft" width="144"]David Stukus, MD Associate Professor of Pediatrics Associate Director, Pediatric Allergy & Immunology Fellowship Program Director of Quality Improvement, Division of Allergy and Immunology Nationwide Children's Hospital and The Ohio State University College of Medicine Columbus Ohio 43205 Dr. Stukus[/caption] David Stukus, MD Associate Professor of Pediatrics Associate Director, Pediatric Allergy & Immunology Fellowship Program Director of Quality Improvement, Division of Allergy and Immunology Nationwide Children's Hospital and The Ohio State University College of Medicine Columbus Ohio 43205 Dr. David Stukus discusses the emerging science behind food allergy prevention. MedicalResearch.com: How many US children are affected by food allergies?  Response: Food allergies affect roughly 5-8% of all U.S. children, which is approximately 6 million children. This translates to about 1 in every 13 children, or an average of two children in every classroom.  MedicalResearch.com: Are food allergies becoming more common? Response: Yes, we know that the prevalence of food allergies have doubled over the past two decades. Unfortunately, there is no single or definitive answer as to why this increase has occurred.