Faculty Bibliography

OBJECTIVE: Leptin and C-reactive protein (CRP) have each been linked to adverse cardiovascular events, and prior cross-sectional research suggests that increased levels of both biomarkers pose an even greater risk. The effect of increased levels of both leptin and CRP on mortality has not, however, been previously assessed. METHODS: We used data from the third National Health and Nutrition Examination Survey (NHANES III) to estimate the mortality effect of high leptin and high CRP levels. Outcomes were compared with the use of inverse-probability-weighting adjustment. Among 6259 participants included in the analysis, 766 were in their sex-specific, population-weighted highest quartiles of both leptin and CRP. Median follow-up time was 14.3 years. RESULTS: There was no significant difference in adjusted all-cause mortality between the groups (risk ratio 1.22, 95% confidence interval [CI], 0.97-1.54). Similar results were noted with the use of several different analytic methods and in many subgroups, though high leptin and CRP levels may increase all-cause mortality in males (hazard ratio, 1.80, 95% CI, 1.32-2.46; P for interaction, 0.011). A significant difference in cardiovascular mortality was also noted (risk ratio, 1.54, 95% CI, 1.08-2.18), though that finding was not confirmed in all sensitivity analyses.. CONCLUSIONS: In this observational study, no significant difference in overall all-cause mortality rates in those with high leptin and high CRP levels was found, though high leptin and CRP levels appear associated with increased mortality in males. High leptin and CRP levels also likely increase risk for cardiovascular death..

OBJECTIVE: Questions persist as to which dimensions of child mental health are most associated with parental mental health status and if these associations differ by parental gender. We assessed associations between parental psychological distress and children's mental health. METHODS: Pooled data from the 2001, 2002, and 2004 National Health Interview Surveys (NHIS), a nationally representative, cross-sectional survey of US children aged 4 to 17 (n = 21,314), were used. Multivariate logistic regression was performed assessing associations between parental psychological distress, measured by the Kessler 6 scale, and the extended-form Strengths and Difficulties Questionnaire (SDQ) scales. RESULTS: Logistic regression demonstrated associations between parental psychological distress and increased likelihood of child mental health problems. Children aged 4 to 11 were more likely to have mental health problems if they had a psychologically distressed father (odds ratio [OR] 7.5, 95% confidence interval [CI] 2.3-24.3) or mother (OR 6.7, 95% CI 2.7-16.7). Children aged 12 to 17 with a psychologically distressed father (OR 4.53, 95% CI 1.18-17.47) or mother (OR 3.90, 95% CI 1.34-11.37) were also more likely than those without to have mental health problems. In parents of both genders, associations existed between parental psychological distress, and abnormal emotional symptoms in younger children, conduct disorder in older children, and hyperactivity in children of all ages. CONCLUSIONS: Parental psychological distress appears similarly associated with adverse child mental health outcomes, regardless of parental gender. These findings corroborate limited prior research and demonstrate that associations between child mental health and parental mental illness are similar in magnitude for fathers and mothers.

OBJECTIVES: Prevalence of hookah use is increasing significantly among adolescents. This study aimed to delineate demographic and socioeconomic correlates of hookah use among high school seniors in the United States. We hypothesized that more impoverished adolescents and those who smoked cigarettes would be more likely to use hookahs.METHODS: Data were examined for 5540 high school seniors in Monitoring the Future (years 2010-2012), an annual nationally representative survey of high school students in the United States. Using data weights provided by Monitoring the Future, we used multivariable binary logistic regression to delineate correlates of hookah use in the last 12 months.RESULTS: Eighteen percent of students reported hookah use in the past year. Compared with white students, black students were at lower odds for use (adjusted odds ratio [AOR] = 0.27, P < .0001). High parent education increased the odds for use (AOR = 1.58, P < .001), and student weekly income from a job of >$50/week (AOR = 1.26, P < .05) or $11 to $50 per week from other sources (AOR = 1.35, P < .01) also increased odds for use. Males and urban students were also at higher odds for use, as were users of alcohol, marijuana, and other illicit substances. Former cigarette smokers were at higher risk, and current smokers were at highest risk for use.CONCLUSIONS: Adolescents of higher socioeconomic status appear to be at particularly high risk for hookah use in the United States. Prevention efforts must target this group as prevalence continues to increase.

OBJECTIVE: Youth indoor tanning rates remain high despite the potential for increased melanoma risk. No previous study has assessed the prevalence of unhealthy weight control behaviors in both male and female adolescent indoor tanning users using a nationally representative survey. METHODS: Pooled data on high school students from the 2009 and 2011 Youth Risk Behavior Survey were used (n = 26,951). Multivariate logistic regression was used to assess associations between the recent indoor tanning use and recently doing the following to lose weight: fasting for more than 24 hours; taking a pill, powder, or liquid without a doctor's consent; and vomiting or taking a laxative. RESULTS: Pooled data showed 23.3% of females reported indoor tanning within the past year; 6.5% of males did so as well. Adjusted multivariate results show that females who indoor tan were, on average, more likely to have fasted (odds ratio [OR], 1.2; 95% confidence interval [CI], 1.0-1.5), taken a pill, powder, or liquid (OR, 2.4; 95% CI, 1.9-3.0), and vomited or taken a laxative to lose weight (OR, 1.4; 95% CI, 1.1-1.7) within the past 30 days than those who did not. Males who indoor tanned within the past year were, on average, more likely to have fasted (OR, 2.3; 95% CI, 1.7-3.1), taken a pill, powder, or liquid (OR, 4.4; 95% CI, 3.3-6.0), and vomited or taken a laxative to lose weight (OR, 7.1; 95% CI, 4.4-11.4) within the past 30 days. CONCLUSIONS: Significant associations between indoor tanning use and unhealthy weight control behaviors exist for both male and female adolescents, with a stronger association observed among males.

INTRODUCTION: U.S. adolescents increasingly use alternative tobacco products (ATPs), including hookah. No study has previously assessed correlates of adolescent hookah use in a nationally representative sample. METHODS: Cross-sectional, nationally representative data of adolescents from the 2011 National Youth Tobacco Survey (NYTS) were used. Student demographics and their use of, exposure to, and beliefs about tobacco were examined as correlates of hookah use. RESULTS: Of adolescents nationwide, 7.3% reported ever trying hookah and 2.6% reported using hookah within the past month. Increasing age was associated with trying hookah, but not current hookah use. Sex was unassociated with hookah use. Asians were most likely to have tried hookah; Hispanics and those of another race reported greater current hookah use. Hookah use increased with perceived ease of access to and willingness to try tobacco. Students with a hookah user at home were more likely to have tried hookah and to currently use hookah. Current cigarette use was not associated with current hookah use (odds ratio [OR] = 1.3, 95% CI = 0.8-2.1), but was associated with trying hookah (OR = 1.5, 95% CI = 1.1-2.2). Non-cigarette tobacco use was associated with trying hookah (OR = 2.7, 95% CI = 2.1-3.5) and current hookah use (OR = 4.8, 95% CI = 2.7-8.7). CONCLUSIONS: A sizeable minority of U.S. adolescents use hookah, particularly those living with hookah users, those who use other ATPs, and those who perceive tobacco as easily accessible. Current cigarette use was not associated with current hookah use. Future studies assessing the dangers of hookah use and interventions to curb this emerging problem appear warranted.

The connection between housing and health is well established. Physical, chemical, and biological aspects of the child's home, such as cleanliness, moisture, pests, noise, accessibility, injury risks, and other forms of housing environmental quality, all have the potential to influence multiple aspects of the health and development of children. Basic sanitation, reduced household crowding, other improvements in housing and expanded, and improved housing regulations have led to advances in children's health. For example, lead poisoning prevention policies have profoundly reduced childhood lead exposure in the United States. This and many other successes highlight the health benefits for families, particularly children, by targeting interventions that reduce or eliminate harmful exposures in the home. Additionally, parental mental health problems, food insecurity, domestic violence, and the presence of guns in children's homes all are largely experienced by children in their homes, which are not as yet considered part of the Healthy Homes agenda. There is a large movement and now a regulatory structure being put in place for healthy housing, which is becoming closely wedded with environmental health, public health, and the practice of pediatrics. The importance of homes in children's lives, history of healthy homes, asthma, and exposures to lead, carbon monoxide, secondhand/thirdhand smoke, radon, allergy triggers is discussed, as well as how changes in ambient temperature, increased humidity, poor ventilation, water quality, infectious diseases, housing structure, guns, electronic media, family structure, and domestic violence all affect children's health.

Numerous studies have investigated the deleterious effects of maternal depression on child outcomes. Knowledge of characteristics of these mothers is incomplete, as most studies utilize small samples or limit investigation to the postpartum period. Utilizing data from a nationally representative sample of 7,211 fathers and mothers living in households with children aged 5-17 years who participated in the Medical Expenditure Panel Survey (MEPS) 2004-2006, the Patient Health Questionnaire-2 (PHQ-2) was used to assess parental depressive symptoms, the Short Form-12 (SF-12) was used to examine paternal and maternal physical health, and the Columbia Impairment Scale was used to measure child behavioral or emotional problems. In multivariate analyses, maternal unemployment (AOR 1.76, 95 % CI 1.31-2.35); living with smokers (AOR 1.82, 95 % CI 1.12-2.94); poor maternal physical health (AOR 2.31; 95 % CI 1.81-2.94); living with children with behavioral or emotional problems (AOR 2.95, 95 % CI 2.30-3.96); and paternal depressive symptoms (AOR 5.11, 95 % CI 1.97-13.25) each were independently associated with increased rates of maternal depressive symptoms. This paper is the first we are aware of to use a nationally representative sample to investigate characteristics associated with maternal depressive symptoms and found that maternal unemployment, living with smokers, poor maternal physical health, having children with behavioral or emotional problems, and paternal depressive symptoms are each independently associated with maternal depressive symptoms. In these data, paternal depressive symptoms are associated with the greatest risk of mothers exhibiting depressive symptoms, a finding that we believe has never before been shown.

Nationally representative historical trends in neonatal infantile hemangioma (IH) diagnosis have not been previously assessed. Using the National Hospital Discharge Survey (NHDS), trends in IH diagnoses were assessed according to race and sex. Findings confirmed prior research that female and white newborns are more likely to be diagnosed with IH, and a statistically significant increase in IH diagnoses was observed in white, but not in nonwhite, infants.

IMPORTANCE Although smoking and secondhand smoke exposure are associated with sensorineural hearing loss (SNHL) in children and adults, the possible association between prenatal smoke exposure and hearing loss has not been investigated despite the fact that more than 12% of US children experience such prenatal exposure each year. OBJECTIVE To investigate whether exposure to prenatal tobacco smoke is independently associated with SNHL in adolescents. DESIGN Cross-sectional data were examined for 964 adolescents aged 12 to 15 years from the National Health and Nutrition Examination Survey 2005-2006. PARTICIPANTS Participants underwent standardized audiometric testing, and serum cotinine levels and self-reports were used to identify adolescents exposed to secondhand smoke or active smokers. MAIN OUTCOMES AND MEASURES Prenatal exposure was defined as an affirmative parental response to, "Did [Sample Person's Name] biological mother smoke at any time while she was pregnant with [him/her]?" Sensorineural hearing loss was defined as an average pure-tone hearing level more than 15 dB for 0.5, 1, and 2 kHz (low frequency) and 3, 4, 6, and 8 kHz (high frequency). RESULTS Parental responses affirmed prenatal smoke exposure in 16.2% of 964 adolescents. Prenatal smoke exposure was associated with elevated pure-tone hearing thresholds at 2 and 6 kHz (P < .05), a higher rate of unilateral low-frequency SNHL (17.6% vs 7.1%; P < .05) in bivariate analyses, and a 2.6-fold increased odds of having unilateral low-frequency SNHL in multivariate analyses (95% CI, 1.1-6.4) after controlling for multiple hearing-related covariates. CONCLUSIONS AND RELEVANCE Prenatal smoke exposure is independently associated with higher pure-tone hearing thresholds and an almost 3-fold increase in the odds of unilateral low-frequency hearing loss among adolescents. These novel findings suggest that in utero exposure to tobacco smoke may be injurious to the auditory system.

OBJECTIVES/HYPOTHESIS: Childhood obesity, defined as body mass index (BMI) >/= 95%, is a significant health problem associated with a variety of disorders, and in adults it has been found to be a risk factor for hearing loss. We investigated the hypothesis that obese children are at increased risk of sensorineural hearing loss (SNHL). STUDY DESIGN: A complex, multistage, stratified geographic area design for collecting representative data from noninstitutionalized U.S. population. METHODS: Relevant cross-sectional data from the National Health and Nutrition Examination Survey, 2005 to 2006, for 1,488 participants 12 to 19 years of age was examined. Subjects were classified as obese if their BMI >/= 95th percentile. SNHL was defined as average pure-tone level greater than 15 dB for 0.5, 1, and 2 kHz (low frequency) and 3, 4, 6, and 8 kHz (high frequency). RESULTS: Compared to normal weight participants (BMI 5%-85%), obesity in adolescents was associated with elevated pure tone hearing thresholds and greater prevalence of unilateral low-frequency SNHL (15.2 vs. 8.3%, P = 0.01). In multivariate analyses, obesity was associated with a 1.85 fold increase in the odds of unilateral low-frequency SNHL (95% CI: 1.10-3.13) after controlling for multiple hearing-related covariates. CONCLUSIONS: We demonstrate for the first time that obesity in childhood is associated with higher hearing thresholds across all frequencies and an almost 2-fold increase in the odds of unilateral low-frequency hearing loss. These results add to the growing literature on obesity-related health disturbances and also add to the urgency in instituting public health measures to reduce it. LEVEL OF EVIDENCE: 2b. Laryngoscope, 2013.