Pertussis is a poorly controlled vaccine-preventable disease. Verifying outbreaks is challenging owing to nonspecific clinical presentations and imperfect diagnostic tests. Exclusive reliance on highly sensitive polymerase chain reaction has been associated with pseudo-outbreaks.

Contamination of specimens with vaccine derived Bordetella pertussis DNA from pediatric clinic surfaces likely resulted in misdiagnoses. Standard practices, liquid transport medium, and lack of polymerase chain reaction cutoffs for discerning weakly positive (contaminant) DNA are contributory, but modifiable factors. (Read the full article)

Registries have been established in a number of countries to monitor the health of patients with cystic fibrosis. Few international comparisons have been made between registries. International data registry comparisons may be useful for informing best practice and benchmarking.

Registry comparisons are feasible but are limited by factors such as nonstandardization of data collection. Lung function was lower in Australian children with cystic fibrosis compared with their US counterparts after adjusting for the benefits of diagnosis after newborn screening. (Read the full article)

Asthma is a common obstructive pulmonary disease experienced during pregnancy. Clinical guidelines recommend women with asthma maintain asthma medication use during pregnancy. Epidemiologic studies suggest an association between several types of defects and asthma or asthma medication use during pregnancy.

Data from a large, population-based, multicenter, case-control study was used. This provides the opportunity to study specific birth defects with minimal heterogeneity in case groups, as well as control for a variety of potential confounders. (Read the full article)

Studies of the association between process and outcome measures of the quality of acute asthma care for children have been mixed. These studies are limited by small, single-institution settings or by examining the association at the aggregate level.

This first multicenter analysis of the process-outcome association in acute asthma care for children revealed no association. Because the validity of process measures depends on association with outcomes, further study is needed before implementing existing process measures as performance metrics. (Read the full article)

Traumatic brain injury in school-aged children is associated with intellectual, behavioral, and social deficits. Research into outcomes of children injured before 3 years of age is limited despite data suggesting a high incidence of injury in this age group.

Results show that a moderate to severe traumatic brain injury before 3 years of age is associated with lowered cognitive function. Furthermore, this study highlights the link between social disadvantage and poor outcomes after traumatic brain injury in early childhood. (Read the full article)

Previous research has demonstrated that young children with traumatic brain injury are at elevated risk of poor outcomes, particularly following severe injuries. These deficits persist until at least 5 years postinsult. Factors predicting outcomes in this age group have not been established.

This study follows survivors of very early traumatic brain injury into adolescence. Results indicate that severe injury is associated with poorest outcome, but after 3 years, the gap between children with severe traumatic brain injury and peers stabilizes. (Read the full article)

High-grade vesicoureteral reflux is a risk factor for impaired renal function. Diagnosis by voiding cystourethrography is invasive and highly uncomfortable. As only a minority of children show high-grade vesicoureteral reflux, this exposes the majority to unnecessary distress.

This case-control study proved that high-grade vesicoureteral reflux is identifiable with high sensitivity using urinary proteome analysis, based on capillary electrophoresis coupled to mass spectrometry in a cohort suspected of having vesicoureteral reflux, thus sparing the majority of children from invasive diagnostics. (Read the full article)

The standard initial management for infants and children with acute pyelonephritis is intravenous antibiotic treatment.

Our results support the use of an oral cefixime treatment of initial episodes of acute pyelonephritis involving a gram-negative bacteria strain in children aged 1 month to 3 years who are without urological abnormalities and without clinical hemodynamic impairment. (Read the full article)

Although it has been shown that cystic fibrosis newborn screening is beneficial, the strategies vary widely, and there has been uncertainty about the costs and consequences of different algorithms and whether screening methods/decisions should be based on assumed cost differences.

This study contributes by offering a comparison of both costs, assessed comprehensively, and the consequences associated with the 2 most popular screening methodologies, immunoreactive trypsinogen/immunoreactive trypsinogen and immunoreactive trypsinogen/DNA, by using a decision-tree framework allowing variation in the model parameters. (Read the full article)

Limited data exist about the frequency and incidence of serious injuries due to physical abuse of children. Data from Child Protective Services, which are published yearly, do not have information about severity.

This is the first study to provide US estimates on the occurrence of serious injuries due to physical abuse. The incidence was highest in infants on Medicaid. Such data can be used to track changes due to prevention. (Read the full article)

The social and emotional burdens of ostracism are well known, but few studies have tested whether ostracism adversely alters physical activity behaviors that may result in maintenance of childhood obesity.

This is the first study to experimentally assess the effect of simulated ostracism, or social exclusion, on physical activity behavior in children. Ostracism reduced accelerometer counts by 22% and increased time allocated to sedentary behaviors by 41%. (Read the full article)

In the previous decade, graduating pediatric residents generally experienced success in finding desired jobs, but they also experienced increased debt and flat starting salaries.

This study highlights trends over the past several years (2003–2009) including high levels of satisfaction among graduating pediatric residents, increasing ease in obtaining postresidency positions, and a modest decline in interest in primary care practice. (Read the full article)

Clinic-based weight control treatments for youth have largely been designed for preadolescent children and their families by using family-based care, a strategy that may be less appealing to adolescents as they become increasingly motivated by peer acceptance rather than parental influence.

To our knowledge, this is the first study to demonstrate the efficacy of a primary care–based, multicomponent lifestyle intervention specifically tailored for overweight adolescent females and demonstrating a sustained effect (at 12 months) extending beyond the active 5-month intervention. (Read the full article)

There are known gaps in quality measures for children. More clinical effectiveness research is needed. The patient-centered medical home may serve as a model to guide the development of quality measures, particularly for children with complex medical conditions.

This study combined systematic literature review and the Rand/University of California Los Angeles appropriateness method to develop quality measures for children with complex medical conditions. These are valid and feasible quality measures based on the patient-centered medical home framework that may be used to assess care. (Read the full article)

Nonconvulsive status epilepticus (NCSE) is the diagnosis for encephalopathy caused by continuous epileptic activity on EEG. It is a well-known cause of morbidity and mortality in critically ill adults and neonates. NCSE is increasingly reported in critically ill children.

We show that NCSE is common in all inpatient settings, not only in the critically ill. Key risk factors that should dramatically increase suspicion of NCSE in clinical practice include a history of convulsive seizure and acute imaging abnormalities. (Read the full article)

Delayed umbilical cord clamping in premature infants has been associated with decreased rates of intraventricular hemorrhage; however, the mechanisms that explain this finding have not been described.

Premature infants with delayed umbilical cord clamping have improved superior vena cava blood flow over the first days of life. This may provide one of the mechanism(s) by which this technique reduces the incidence in intraventricular hemorrhage in this at-risk population. (Read the full article)

Recent studies report that overall computed tomography utilization in the emergency department has continued to rise. Increased computed tomography use is concerning because of the association with radiation exposure and the potential risk of radiation-induced malignancy, which is highest in children.

Our data showed no overall increase in computed tomography utilization through 2010. In areas where alternative non–radiation-based modalities were options, there were decreased trends in computed tomography use and increased use of potential alternative non–radiation-based modalities. (Read the full article)

Most states require driver education (DE) for novice drivers, and several recent substantial efforts have sought to realign DE with the aim of producing safer drivers. However, teen participation rates and how they differ among relevant subgroups remain unknown.

This study provides national estimates of teen driver participation in formal DE, a recognized gap in the literature, and identifies disparities in behind-the-wheel training among certain racial/ethnic, socioeconomic, and gender groups, particularly in jurisdictions without a DE requirement. (Read the full article)

Impaired fetal growth is an independent risk factor for cardiovascular diseases in adulthood and is associated with arterial wall thickening, a noninvasive measure of subclinical atherosclerosis, in early childhood. No preventive strategy has been identified.

Dietary omega-3 fatty acid supplementation in early childhood prevented the association of impaired fetal growth with arterial wall thickening, suggesting that this early-life intervention may mitigate the risk of cardiovascular disease in those with impaired fetal growth. (Read the full article)

Neglect cases in Child Protective Services often receive home-based interventions, but their success in preventing maltreatment recidivism has been elusive. Structured, behavioral skills models, such as SafeCare, are promising but have not been tested in full-scale implementation trials.

This cluster trial experiment demonstrates significant maltreatment recidivism reduction due to implementing the SafeCare model in a fully scaled-up statewide system. The findings support adopting the SafeCare model for these types of services. (Read the full article)

Childhood gender nonconformity has been associated with poorer relationships with parents, but it is unknown if childhood gender nonconformity is associated with childhood abuse or with posttraumatic stress disorder.

We identify gender nonconformity before age 11 years as a risk indicator for physical, sexual, and psychological abuse in childhood and lifetime probable posttraumatic stress disorder in youth. (Read the full article)

Parent-infant bed-sharing is a common behavior of breastfeeding mothers and various ethnic groups. Under certain circumstances, it is associated with an increased risk of sudden infant death. Blanket prohibitions against bed-sharing conflict with breastfeeding promotion and inhibit safe bed-sharing discussion.

Bed-sharing and sofa-sharing were almost mutually exclusive. Pakistani families avoided sofa-sharing and hazardous bed-sharing, and have a very low rate of sudden infant death syndrome. White British families were more likely to smoke, drink alcohol, and sofa-share with their infants. (Read the full article)

The number of individuals diagnosed with autism spectrum disorders (ASDs) continues to increase in the United States and other developed countries. Most prevalence estimates indicate that ASD is diagnosed less commonly in Hispanic individuals compared with non-Hispanic (NH) white populations.

Prevalence of ASD in Arizona’s population-based cohort is higher than reported previously. Prevalence in the Hispanic population and NH white population increased significantly over time, with a significant decrease in the gap between Hispanic and NH white prevalence. (Read the full article)

Infantile colic affects almost 10% of all infants and is characterized by crying and fussing in an otherwise healthy and well-fed infant. Prenatal exposure to tobacco smoking is a risk factor, but it is unclear whether nicotine causes the association.

Infants exposed to nicotine replacement therapy during pregnancy had elevated infantile colic risk of the same magnitude as infants exposed to tobacco smoking. Intrauterine exposure to nicotine may play a causal role in the pathogenesis of infantile colic. (Read the full article)

Studies in the Netherlands show that pubertal blockade at Tanner 2/3 prevents unwanted sex characteristics and improves psychological functioning. Endocrine Society guidelines (2009) recommend pubertal suppression for adolescents with gender identity disorder until approximately age 16.

This is the first study of a US cohort of children and adolescents with gender identity disorder. Patients were referred for medical treatment to a pediatric center that supports a multidisciplinary Gender Management Service. (Read the full article)

The demographics of trials that use antenatal consent may not be representative of the populations that they are intended to study.

This study analyzes the difference in clinical outcomes between the enrolled and eligible but not enrolled populations of a trial that required antenatal consent. (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)

Active video games can enable children under laboratory conditions to participate in moderate, and even vigorous, physical activity. There are inconsistencies in the literature, however, about whether active video games enable children to increase physical activity under more naturalistic circumstances.

This study tests whether children receiving a new active video game spontaneously engaged in more physical activity, and whether commercially available active video games have a public health benefit. No additional physical activity was detected, suggesting no public health benefit. (Read the full article)

Few studies have examined the reliability of clinical findings in pediatric appendicitis. Clinical prediction rules are most useful if the included variables are reliable across practice settings and practitioners.

Among children who present with possible appendicitis, the interrater reliability varied considerably for patient history and physical examination variables. Those variables with the highest degree of reliability may be best suited for inclusion in appendicitis clinical prediction rules. (Read the full article)

Strategies to assist patients in achieving optimal chronic disease self-management are critical. The complex family and regimen issues surrounding pediatric type 1 diabetes management suggest the need to integrate such strategies into routine clinical care.

This study demonstrates the efficacy of a practical, low-intensity behavioral intervention delivered during routine care for improving glycemic outcomes. Findings indicate that the approach may offer a potential model for integrating medical and behavioral sciences to improve health care. (Read the full article)

Breastfeeding and oral sucrose have shown an analgesic effect in premature newborn infants for minor painful procedures. Studies suggest that the analgesic properties of breast milk are superior to oral sucrose in term neonates.

For premature infants from 32 to 37 weeks, there is no significant difference in analgesic effect between breast milk and oral sucrose. Breast milk is a safe and natural method for pain relief in late preterm infants. (Read the full article)

The availability of rapid response systems to assist deteriorating patients is the standard of care in children’s hospitals. Metrics for evaluating their effectiveness include cardiac and respiratory arrest rates, rare events that require years of data to show significant improvements.

A proximate outcome for in-hospital mortality among patients receiving rapid response system assistance was developed. This "critical deterioration" metric was eightfold more common than arrests and demonstrated criterion and construct validity, facilitating meaningful evaluation over shorter periods of time. (Read the full article)

Preterm infants are at increased risk of behavioral problems, which has been associated with maternal distress. Paternal psychological well-being is less studied. Parents’ concerns may affect their perceptions or attitudes and have negative effects on the behavior of the child.

Parents report more behavior problems in VLBW children at age 3 if they themselves have had symptoms of depression, parenting stress, or weak sense of coherence. Also, the paternal psychological well-being contributes to the behavioral development of a preterm child. (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)

Inhaled nitric oxide for premature infants has been evaluated in multiple studies; however, these trials differed in treatment initiation, duration of therapy, and inclusion criteria. Furthermore, these trials reached differing conclusions regarding the benefit of inhaled nitric oxide.

We used a large sample of infants from children’s hospitals and found that the use of inhaled nitric oxide in premature infants was variable even when controlling for demographic characteristics and disease. (Read the full article)

There is a perception among clinicians that methicillin-resistant Staphylococcus aureus (MRSA) bacteremia and/or meningitis result in a greater burden of disease than invasive infections attributed to methicillin-susceptible Staphylococcus aureus (MSSA) among very low birth weight (VLBW) infants.

VLBW infants with MRSA and MSSA bacteremia and/or meningitis have equivalent morbidity and mortality. These findings suggest that allocation of resources for prevention and treatment of both MRSA and MSSA infections among VLBW infants should be comparable. (Read the full article)

Previous research on the cost of childhood autism has been restricted primarily to studying direct costs (money outlays) incurred by publicly and privately funded service systems.

This study estimates the economic impact on the family and examines indirect costs to families in the form of parental labor market productivity losses. (Read the full article)

Changes in BMI category appear to be common in young children and are associated with cardiometabolic risk in cross-sectional studies. However, there are few longitudinal studies and little information from multiethnic samples of US middle school children.

Findings demonstrate that shifts in BMI category are common in middle-school-aged children and associated with clinically meaningful changes in cardiometabolic risk factors. Programs to promote decreases in BMI, prevent increases, and moderate risk are indicated. (Read the full article)

Infantile hypertrophic pyloric stenosis incidence varies over different regions and time periods. Recently, a decline was reported in the United States, Sweden (concurrent with a decline in sudden infant death syndrome), Scotland, and Denmark. The etiology remains unclear; therefore, epidemiologic data are valuable.

A decline in the incidence of infantile hypertrophic pyloric stenosis in Germany from 2000 to 2008 was noted but with wide regional variations. The regional distribution of infantile hypertrophic pyloric stenosis was different from that of sudden infant death syndrome. (Read the full article)

Early administration of oral corticosteroids is essential for children presenting to emergency departments with moderate to severe acute asthma exacerbations, because subsequent admission need is directly related to time to receipt of systemic steroids, yet delays to administration remain long.

A medical directive allowing nurse initiation of oral corticosteroids before physician assessment was associated with improved quality and efficiency of care provided in the pediatric emergency department by ensuring implementation of evidence-based practice. (Read the full article)

Insulin is commonly used to treat neonatal hyperglycemia, but there are few data to support its use. Tight glycemic control with insulin improves outcome in diabetic patients, but it is not known whether it is effective in hyperglycemic preterm infants.

Tight glycemic control with insulin in hyperglycemic preterm neonates decreases the rate of linear growth despite increased weight and occipitofrontal head circumference gain and increases the risk of hypoglycemia. Insulin may not be a safe and effective treatment in hyperglycemic preterm neonates. (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)

Cross-sectional studies have shown an increased risk of mental health difficulties in children with developmental coordination disorder. However, there has been limited longitudinal research in this area controlling for confounding factors and assessing the role of potential mediators.

Children with "probable" developmental coordination disorder at 7 years had a significantly increased risk mental health difficulties at 10 years. Protective factors for self-reported depression included high IQ, high self-esteem, good social communication skills, and the absence of bullying. (Read the full article)

Emergency contraception is a safe and effective method of pregnancy prevention after unprotected intercourse.

Pharmacies commonly communicate misinformation, both to adolescents and to physicians, concerning who is able to access emergency contraception and through what means. (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)

Tenfold medication error is a well-recognized risk of pharmacotherapy in pediatric practice but little evidence describes the circumstances of such errors.

This study identified 252 tenfold medication errors, 22 of which resulted in patient harm. We identified opioids and other high-risk medications to be associated with tenfold medication error and frequent, recurrent causes, mechanisms, and error enablers that suggest areas for future improvements. (Read the full article)

Cancer in a child may affect the quality of the parents’ relationship, but few studies have examined a potential effect on parental divorce, and no studies have accounted for the proportion of couples that live outside formal marriages.

In this nationwide registry-based study with up to 20 years of follow-up, we included both married and cohabiting couples, reflecting modern family structures. We found that experiencing cancer in a child is not a risk factor for the parents separating. (Read the full article)

Complementary and alternative medicine (CAM) use for pediatric asthma is increasing. It is well known that effective asthma management depends on patient adherence to treatment. The authors of previous cross-sectional studies have linked CAM use with decreased adherence to conventional asthma treatment regimens.

This longitudinal data set was unique, allowing us to focus on patients who initiated CAM and to follow subsequent asthma medication adherence. We found that CAM use was not associated with adherence, suggesting that patients may practice CAM alongside conventional therapies. (Read the full article)

Although developmental care in NICUs reduces the stress experienced by preterm infants, the actual level of developmental care may vary and little is known about how the level of developmental care relates to preterm infants’ neurobehavioral performance.

The study demonstrates the relationship between variations in developmental care in NICUs and the neurobehavior of preterm infants. Infants from NICUs with high-quality developmental care compared with infants from units with low quality of care evidenced a better neurobehavioral profile. (Read the full article)