Secondhand smoke exposure poses a significant health risk to nonsmokers. With the proliferation of comprehensive smoke-free laws prohibiting smoking in worksites and public areas, private areas have become the primary source of secondhand smoke exposure for many individuals, particularly youth.

Secondhand smoke exposure in cars has steadily declined among middle and high school students. However, many remain exposed to secondhand smoke in this environment. Jurisdictions should expand existing comprehensive smoke-free policies to prohibit smoking in vehicles occupied by youth. (Read the full article)

The evidence base for obesity prevention is extremely limited. Although minority youth are at higher risk of obesity, and early childhood is a critical period for prevention, only 1 program has demonstrated sustained effects on obesity in young minority children.

Among youth at high risk for obesity based on income, minority status, and child behavior problems, early intervention that promotes effective parenting led to meaningful differences in obesity in preadolescence. Early family intervention is an innovative and promising approach. (Read the full article)

Pulmonary hypertension is associated with bronchopulmonary dysplasia in extremely low birth weight infants and contributes to morbidity and mortality.

Pulmonary hypertension affects at least 1 in 6 extremely low birth weight infants and persists to discharge in most survivors. Routine screening of these infants with echocardiography at 4 weeks of age identifies only one-third of those affected. (Read the full article)

Among extremely premature infants, survival has improved, but the rate of cognitive impairment has not. Impaired cognition is the most frequent developmental problem identified in survivors. Several antenatal factors have been associated with cognitive impairment, mostly related to social disadvantage.

In addition to social disadvantage, antenatal characteristics associated with cognitive impairment include maternal obesity and thrombosis of fetal stem vessels. Prenatal infection and inflammation were not associated with impaired early cognitive function among extremely preterm infants. (Read the full article)

Community-acquired pneumonia (CAP) is a common pediatric illness caused by Streptococcus pneumoniae. New pediatric Infectious Diseases Society of America CAP guidelines are now available recommending ampicillin as empirical treatment of children hospitalized with uncomplicated CAP.

This study found that a CAP guideline led to an increase in the narrow-spectrum antibiotic ampicillin. Additionally, an increase in the use of amoxicillin at discharge was observed. Furthermore, change in therapy did not lead to increased adverse outcomes. (Read the full article)

Children with special health care needs present clinically with varied functional difficulties across an array of health conditions. Little attention has been given to the interaction of these descriptors at a population level, thereby not addressing the complexity of functional difficulties and their impact on the health of CSHCN.

The data demonstrate the relationships among functional difficulties and health conditions, which then improve our understanding of CSHCN and their needs. Functional difficulties contribute significantly to outcomes, such as emergency room visits, parental work patterns, and limitations in daily activities, and have implications for practice, training, policy, and research. (Read the full article)

Approximately 1.1% to 5.9% of febrile infants aged <90 days have bacteremia, but the incidence of bacteremia in this age is unknown. Escherichia coli, group B Streptococcus, and Staphylococcus aureus are the leading causes of bacteremia.

Bacteremia occurs in 2.2% of infants who have a blood culture drawn. The incidence rate of true bacteremia was 0.57 in 1000 full-term births. The most common pathogens were Escherichia coli (56%), group B Streptococcus (21%), and Staphylococcus aureus (8%). (Read the full article)

Pneumonia is still a significant problem in young children from developing countries where zinc deficiency is prevalent. Although zinc supplementation reduces the risk of childhood pneumonia, the effect of adjunct zinc on severe pneumonia is unclear with conflicting results.

The overall effect, if any, of zinc as adjuvant therapy for World Health Organization–defined severe pneumonia in young children is small. (Read the full article)

Several studies have analyzed fatal or nonfatal youth injury incidence in US agricultural settings, but none have combined those estimates to form an overall picture. The only detailed study of costs related to such injuries is restricted to nonfatal injury.

This study provides a comprehensive analysis of the annual incidence and cost of agricultural youth injuries in the United States. It analyzes them from different perspectives: fatal versus nonfatal, at work versus not at work, and requiring hospitalization versus not requiring hospitalization. (Read the full article)

Survival takes precedence for adolescent patients with cancer and their families. Patients may not discuss their treatments’ potential to damage their reproductive capacity, which has significant psychological late effects in survivorship.

Strong reproductive concerns of adolescents with cancer may not be captured on current health-related quality of life instruments and may be neglected by parents’ unawareness. Parent-proxy reports of adolescent reproductive concerns are not suitable for capturing specific emotions and feelings. (Read the full article)

In the prerotavirus vaccine era, diarrhea-associated hospitalization and outpatient rates among American Indian and Alaska Native children were higher than those among the general US population. Routine rotavirus vaccination has dramatically decreased rotavirus diarrhea burden in the general US population.

Decreases in diarrhea-associated hospitalization and outpatient rates among American Indian and Alaska Native children in postvaccine years were observed in all Indian Health Service regions, with declines greater in each subsequent year after vaccine introduction. (Read the full article)

Asian Americans have a reduced risk of cerebral palsy (CP) compared with whites. Whether this is true for all Asian ethnic subgroups is unknown. Differences in sociodemographic factors may explain disparities in CP prevalence between Asians and whites.

East Asian, Filipino, Indian, Pacific Islander, and Southeast Asian children were 13% to 38% less likely to have CP than white children. Differences in maternal age and education, gender, and birth weight did not explain these differences in CP rates. (Read the full article)

Nearly one-third of all US children are overweight or obese, with even higher prevalence among Mexican American children. Overweight and obesity increase systemic inflammation, contributing to increased risk for chronic diseases, such as type 2 diabetes mellitus and cardiovascular disease.

Obese Mexican American children had concurrent alterations in both inflammatory markers and traditional disease risk markers, relative to healthy weight children. Our results provide evidence partially explaining the health disparity for disease in Mexican American children who are overweight/obese. (Read the full article)

The presence of malodorous urine is often mentioned as one of the clinical manifestations of urinary tract infection (UTI) in young children, yet the few studies looking at this symptom are contradictory.

Our study demonstrates that malodorous urine as reported by parents increases the likelihood of UTI among young children evaluated for suspected UTI. However, this association is not strong enough to definitely rule in or out a diagnosis of UTI. (Read the full article)

Following a rapid increase from 1980 to 2001, the prevalence of obesity among school-age children and adolescents in the United States has plateaued. Few studies have examined obesity trends among younger children in the past decade, and findings are inconsistent.

Among children aged <6 years at this multisite pediatric practice, the prevalence of obesity was fairly stable during 1999–2003, but substantially decreased during 2004–2008. This decrease was smaller among children insured by Medicaid than children insured by non-Medicaid health plans. (Read the full article)

Asthma disparities exist, with Latino children of Caribbean descent at risk for poor disease control. Controller medications reduce symptoms; however, medication adherence remains suboptimal. Identifying what factors predict poor medication adherence in at-risk groups could identify important treatment targets.

This study is the first to assess objective rates of medication use among children with asthma in Puerto Rico. Findings suggest that interventions incorporating family resources and addressing parental beliefs about medications may be of benefit across cultural groups. (Read the full article)

Previous research has identified low rates of employment and postsecondary education for youth with autism, but generalizability has been limited by small samples.

Using national data, the authors of this study found that youth with autism are at high risk for no postsecondary education or employment, especially in the first 2 years after high school. Findings highlight the need for improved transition planning. (Read the full article)

Overweight and obese children have a higher prevalence of several cardiovascular disease (CVD) risk factors. There is growing evidence demonstrating that CVD risk factors present during childhood persist into adulthood.

US adolescents had no significant change in prehypertension/hypertension and borderline-high/ high low-density lipoprotein cholesterol prevalence from 1999–2000 to 2007–2008; however, prediabetes/diabetes increased by 14%. (Read the full article)

Infants weighing 501 to 1500 g are at high risk for mortality and for neonatal morbidities associated with both short- and long-term adverse consequences.

Mortality and major neonatal morbidity in survivors decreased for infants 501 to 1500 g between 2000 and 2009. However, in 2009, a high proportion of these infants still either died or survived after experiencing ≥1 major neonatal morbidity. (Read the full article)

Numerous studies report disparate use of dental services among poor children. National estimates vary based on the data source, and little is known about how age, race, and health plan affect use of dental services among Medicaid-enrolled children.

Based on of Medicaid claims, dental services improved since 2002 but varied substantially by state, age, and type of insurance. Children entering school had the highest prevalence of care as did children in primary care case management and health maintenance organizations. (Read the full article)

Although obesity is correlated with levels of systolic and diastolic blood pressure, there is little evidence if the increases in obesity over the last 40 years have resulted in increased blood pressure levels.

Despite increases in obesity in Bogalusa, Louisiana between 1974 and 1993, there was no increase in systolic or diastolic blood pressure levels. It should not be assumed that trends in high blood pressure have paralleled those for obesity. (Read the full article)

Children with a single kidney are often counseled to avoid contact/collision sports based on the concern of injury to the kidney; however, the incidence of kidney injury during sport is not well understood.

Based on this multiyear, prospective injury surveillance system of varsity-level high school athletes, sport-related kidney injury is rare. Reevaluation of American Academy of Pediatrics recommendations regarding sport participation by children with a single kidney is indicated. (Read the full article)

Emphasis on preventing central line-associated bloodstream infections (CLABSIs) in US health care facilities and prophylactic antifungal medication use in neonates may impact incidence of Candida spp. CLABSIs. However, data on trends in incidence of neonatal Candida spp. CLABSIs are lacking.

Data from a large sample of US NICUs was analyzed to assess trends in incidence over time. This analysis provides a description of the epidemiology of Candida spp. CLABSIs in a national health care-associated infections surveillance system. (Read the full article)

Late preterm infants are at risk for a variety of developmental impairments; however, little is known about developmental differences among children born within the term range of 37 to 41 weeks’ gestation.

This study links comprehensive birth record data from 128 050 term births to children’s school records 8 years later. Analyses establish that, even among the "normal term" range, gestational age is an important independent predictor of academic achievement. (Read the full article)

Eating disorder not otherwise specified (EDNOS) is the most common eating disorder diagnosis. Binge eating disorder, 1 type of EDNOS, is associated with obesity among adults. Little is known about the health outcomes associated with other types of EDNOS.

This is the first study to evaluate the prospective association of full and subthreshold bulimia nervosa, binge eating disorder, purging disorder, and other EDNOSs with specific mental and physical health outcomes. (Read the full article)

Because most childhood tuberculosis cases are sputum smear-negative, diagnosis relies largely upon clinical presentation, tuberculin skin testing, and chest radiograph. Diagnostic limitations contribute to treatment delays and high mortality. However, childhood tuberculosis (TB) mortality risk factors are not well documented.

This study demonstrates that false-negative TST is common in children with active TB and is associated with increased risk of death. A negative TST should not delay anti-TB therapy. Improved diagnostic modalities are urgently needed in resource-limited settings. (Read the full article)

Children with obstructive sleep apnea (OSA) are usually treated by surgical removal of their upper airway lymphadenoid tissue. Recently, medications were offered to patients with nonsevere OSA. Montelukast, for this indication, had never been studied in a randomized controlled manner.

Montelukast effectively reduced polysomnographic findings, symptoms, and the size of the adenoidal tissue in children with nonsevere OSA. The findings support the potential of a leukotriene modifier as a novel, safe, noninvasive alternative for children with mild to moderate OSA. (Read the full article)

Policies that govern nutrition standards of foods and beverages sold outside of federal meal programs ("competitive foods") have been associated with adolescent weight status in a small number of cross-sectional studies and pre-post analyses in individual states.

This longitudinal analysis of 6300 students in 40 states provides evidence that state competitive food laws are associated with lower within-student BMI change if laws contain strong language with specific standards and are consistent across grade levels. (Read the full article)

A growing number of epidemiologic studies suggest that individuals with lower vitamin D levels are at higher risk of acute respiratory tract infection. Randomized controlled trials are needed to determine if vitamin D supplementation would decrease this risk.

In a randomized controlled trial of 247 Mongolian children with vitamin D deficiency in winter, with double-blinding and 99% follow-up, vitamin D supplementation significantly reduced the risk of acute respiratory tract infections. (Read the full article)

Forearm fractures are unique injuries which are associated with lower bone mineral density in adults and white children. The relationships among bone mineral density, 25-hydroxyvitamin D status, and risk for forearm fracture have not been investigated in African American children.

Our data support an association between both lower bone mineral density and vitamin D deficiency and increased odds of forearm fracture in African American children. Promotion of bone health is indicated in this population. (Read the full article)

The 2009 influenza A (H1N1) pandemic caused illness in all age groups, but children were disproportionately affected. Children with underlying neurologic disorders were at high risk of influenza-related complications, including death.

This study provides the first detailed description of underlying neurologic disorders among children who died of influenza A (H1N1)pdm09 virus infection. (Read the full article)

Sending and receiving sexually explicit picture and text messages via cell phone (ie, "sexting") among adolescents is publicized as a societal and public health concern, yet it is unknown whether sexting is associated with physical sexual activity or sexual risk behavior.

This study is the first to examine sexting among a probability sample of adolescents and found that sexting is associated with sexual activity, sexual risk behavior, and knowing other person(s) who have sent a sext. (Read the full article)

Electronic cigarettes are battery-powered devices that simulate tobacco cigarettes by vaporizing nicotine and other chemicals into an inhalable mist. They have gained popularity around the world, but little is known about their safety and addictive properties.

Among Polish youth, electronic cigarettes are the fourth most common source of nicotine after cigarettes, waterpipes, and snuff. For those aged between 15 and 24 years, ever use of an electronic cigarette was 20.9%, and 30-day use was 6.9%. (Read the full article)

High blood pressure in childhood predisposes people to hypertension in adulthood and is associated with early development of cardiovascular disease and risk for premature death. High sodium intake and overweight/obesity are recognized as risk factors for hypertension in children.

These results show that usual sodium intake was positively associated with systolic blood pressure and risk for pre-high blood pressure and high blood pressure among US children. The data indicate a synergistic interaction between sodium intake and weight status on risk for high blood pressure. (Read the full article)

Despite numerous preventive strategies including prophylaxis with 400 IU/day of vitamin D in recent years, the deficiency of vitamin D in infants is still a global health problem.

This study reveals that the risk of vitamin D deficiency is high in exclusively breastfed infants, especially in winter, despite vitamin D supplementation. Therefore, it is suggested that an adjustment of vitamin D dosage for seasonal variation might be necessary. (Read the full article)

Inflammatory bowel disease pathogenesis is incompletely understood. Previous pediatric studies suggested associations between antibiotic use and inflammatory bowel disease development but were limited by recall bias, lack of controls, incomplete antibiotic capture, or included exposures between symptom onset and diagnosis.

Our population-based cohort study suggests that certain childhood antibiotic exposures are associated with an increased risk of developing inflammatory bowel disease. Our findings have implications for understanding the condition’s pathogenesis and provide additional stimulus for reducing unnecessary childhood antibiotic use. (Read the full article)

Increased computed tomography (CT) use among adults and children presenting to emergency departments has spawned concern about associated radiation exposure. The risks and benefits of CT use for certain conditions, such as abdominal pain, among general pediatric populations remains unclear.

This study analyzes emergency department radiology trends between 1998 and 2008 among children with abdominal pain, highlighting a dramatic increase in CT use. Factors associated with CT ordering include older age, non-black race, and hospital admission. (Read the full article)

Most term and late preterm infants with neonatal encephalopathy have not had recognized asphyxial birth events. Several nonasphyxial risk factors for neonatal encephalopathy have been identified in previous studies.

In a large sample, we confirm the association of several nonasphyxial factors with neonatal encephalopathy, including markers of intrauterine exposure to infection or inflammation, intrauterine fetal growth restriction, and birth defects. We identify steps that would improve studies of neonatal encephalopathy. (Read the full article)

There are limited data on current testing and treatment patterns for children hospitalized with pneumonia, and on whether institutional guidelines affect care.

The use of institutional clinical practice guidelines was not associated with changes in diagnostic testing, hospital length of stay, or costs for children hospitalized with pneumonia, but was associated with increased use of narrow-spectrum antibiotics. (Read the full article)

Detained youth represent a vulnerable pediatric population with worse health outcomes than their nondetained peers. To date, little work has been done to determine whether health information technologies may be effectively used to improve the health of this underserved population.

The Internet is accessible to youth involved in the juvenile justice system. A securely accessible online system to store detained youth’s health information may be both feasible and acceptable for engaging these adolescents more actively in their health care. (Read the full article)

Nationally representative surveys provide insight into overall childhood obesity trends and disparities but do not identify patterns specific to individual states. School-based surveillance is recommended, but it is unclear whether surveillance is helping to identify children at greatest risk.

This study includes 3 consecutive years of surveillance findings to describe within-state spatial and socioeconomic disparities in obesity among elementary-aged children. Implications for states using and considering school-based surveillance to plan preventive interventions are considered. (Read the full article)

Data from several states that have implemented protective eyewear mandates at the scholastic level have shown a substantial reduction in eye injuries. However, there are no studies that critically evaluate the effectiveness of protective eyewear in girls’ field hockey.

Data collected from regional/national high school sports injury surveillance databases by certified athletic trainers has resulted in the largest prospective national study examining the effectiveness of mandated protective eyewear in reducing head, eye/orbital, concussive, and facial injuries performed to date. (Read the full article)

Disparities in vaccination coverage between American Indian/Alaska Native and white children previously existed between 2001 and 2004 but were not present in 2005.

This study updates a previous study by analyzing data through 2010 and found that these gains have been maintained. (Read the full article)

Emphasis on muscularity has increased in recent decades. Identifying adolescent populations at risk for unhealthy muscle-enhancing behaviors is of considerable importance, yet recent research in the United States is limited in terms of sample diversity and behaviors of interest.

Muscle-enhancing behaviors were common for both boys and girls, and rates were higher than reported previously. Adolescents in high school, of Asian background, in overweight/obese BMI categories, and involved in sports reported significantly greater use than other youth. (Read the full article)

Adolescents have high placebo response rates in depression treatment trials. Screening for depression will likely detect youth with a broad range of symptom severity, including some who would benefit from watchful waiting but might not require active treatment.

The strongest predictors of symptom persistence are depressive symptom severity at presentation and continued symptoms on repeat screening 6 weeks later. These results provide important information for the development of postscreening management protocols in the primary care setting. (Read the full article)

Knowledge is limited regarding the epidemiology of persistent pulmonary hypertension of the newborn (PPHN). Previous work has implicated a host of perinatal risk factors and a few antenatal antecedents of PPHN, including maternal consumption during pregnancy of nonsteroidal antiinflammatory medications.

In contrast to results of previous studies, we found no association between PPHN and maternal consumption during late pregnancy of nonsteroidal antiinflammatory drugs in general or ibuprofen in particular. (Read the full article)

Although survival of children born with Down syndrome has improved, unexplained racial and ethnic disparities in survival persist in the United States.

This study used population-based data from 10 birth defects monitoring programs in the United States to examine survival trends among children born with Down syndrome and to evaluate the changing influence of survival predictors over the life course. (Read the full article)

Infants and toddlers with deformational plagiocephaly (DP) score lower on developmental measures than children without DP and lower than expected relative to test norms.

This study is the first to examine developmental outcomes in preschool-aged children with DP relative to demographically similar children without DP using a standardized, clinician administered assessment. (Read the full article)

Adequate vitamin D is essential for skeletal health in developing children. Although excess body weight is associated with risk of vitamin D deficiency, the national prevalence of vitamin D deficiency in overweight and obese children is unknown.

Vitamin D deficiency is highly prevalent in overweight and obese children, and severely obese and minority children are disproportionately affected. There are many modifiable factors associated with vitamin D deficiency in overweight and obese children. (Read the full article)

Previous studies suggest that hospitals under the greatest financial strain may be more prone to adverse events because they have limited resources to invest in quality and safety.

The patient population served, rather than hospital category, best predicts measured quality, underscoring the need for robust risk adjustment when incentivizing quality or comparing hospitals. Thus, problems of quality may not be systemic across hospital categories. (Read the full article)