Archives of pediatrics & adolescent medicine最新文献

OBJECTIVES To assess childhood maltreatment as a risk factor for violent injuries and premature death in young adulthood and whether these associations are mediated by adolescent heavy drinking, hard drug use, hard drug selling, and violent offending. DESIGN Prospective longitudinal study of boys followed from childhood into young adulthood. SETTING Pittsburgh, Pennsylvania. PARTICIPANTS A total of 1009 men from the Pittsburgh Youth Study. MAIN EXPOSURE Childhood maltreatment. MAIN OUTCOME MEASURES Premature deaths between ages 18 and 38 years from the Social Security Death Index and self-reports of violent injuries inflicted by gunshot or knife between ages 18 and 28 years. RESULTS Young men who experienced childhood maltreatment, compared with their counterparts who did not experience it, had a greater risk of violent injuries (relative risk = 1.61; 95% CI, 1.10-2.35) and death (hazard ratio = 2.85; 95% CI, 1.37-5.93) during young adulthood. Adolescent violent offending and hard drug selling explained the association between childhood maltreatment and violent injuries, and violent offending partially accounted for the association between childhood maltreatment and premature death. Although adolescent violent offending predicted both outcomes, maltreated boys still had an increased risk of premature death (hazard ratio = 2.54; 95% CI, 1.21-5.34) after accounting for their adolescent violence. CONCLUSIONS Childhood maltreatment significantly predicts premature death and violent injuries during young adulthood. These associations are partially explained by adolescent involvement in violence and drug dealing. Targeted interventions for maltreated boys to reduce their involvement in adolescent deviant behaviors may help decrease their risks for later serious injuries and premature death.

Objective: To describe the use of diagnostic tests in adolescents with essential hypertension.

Design: Longitudinal analysis of administrative claims data.

Setting: Michigan Medicaid program during 2003 to 2008.

Participants: Adolescents with 3 or more years of Medicaid eligibility (≥ 11 months/y) who had a diagnosis of essential hypertension and 1 or more antihypertensive medication pharmacy claims.

Main outcome measures: We examined adolescents' echocardiogram use and compared it with electrocardiogram (EKG) and renal ultrasonography use. We examined timing of the 3 diagnostic tests in relation to the first pharmacy claim. We examined patient demographics and presence of obesity-related comorbidities.

Results: During 2003 to 2008, there were 951 adolescents with essential hypertension who had antihypertensive pharmacy claims; 24% (226) had echocardiograms; 22% (207) had renal ultrasonography; and 50% (478) had EKGs. Males (odds ratio [OR], 1.53; 95% CI, 1.06-2.21), younger adolescents (OR, 1.69; 95% CI, 1.17-2.44), those who had EKGs (OR, 5.79; 95% CI, 4.02-8.36), and those who had renal ultrasonography (OR, 2.22; 95% CI, 1.54-3.20) were more likely to obtain echocardiograms compared with females, older adolescents, and adolescents who did not have EKGs or renal ultrasonography.

Conclusions: Guideline-recommended diagnostic tests-echocardiograms and renal ultrasonography-were equally poorly used by adolescents with essential hypertension. Sex and age differences exist in the use of echocardiograms by adolescents with essential hypertension. The decision and choice of diagnostic tests to evaluate adolescents with essential hypertension warrant further study to understand the underlying rationale for those decisions and to determine treatment effectiveness.

OBJECTIVES To determine whether minors can successfully purchase alcohol online and to examine age verification procedures at the points of order and delivery. DESIGN A cross-sectional study evaluated underage alcohol purchase attempts from 100 popular Internet vendors. SETTING The study was conducted at the University of North Carolina at Chapel Hill, July 14-27, 2011. PARTICIPANTS Eight 18- to 20-year-old individuals participated. OUTCOME MEASURES Rates of successful sales to minors and use of age verification procedures at order and delivery were determined. RESULTS Of the 100 orders placed by the underage buyers, 45% were successfully received; 28% were rejected as the result of age verification. Most vendors (59%) used weak, if any, age verification at the point of order, and, of 45 successful orders, 23 (51%) used none. Age verification at delivery was inconsistently conducted and, when attempted, failed about half of the time. CONCLUSIONS Age verification procedures used by Internet alcohol vendors do not adequately prevent online sales to minors. Shipping companies should work with their staff to improve administration of age verification at delivery, and vendors should use rigorous age verification at order and delivery. Further research should determine the proportion of minors who buy alcohol online and test purchases from more vendors to inform enforcement of existing policies and creation of new policies to reduce youth access to alcohol online.

OBJECTIVE To evaluate the impact of a 12-month multicomponent school-based obesity prevention program, Nutrition and Enjoyable Activity for Teen Girls among adolescent girls. DESIGN Group randomized controlled trial with 12-month follow-up. SETTING Twelve secondary schools in low-income communities in the Hunter and Central Coast regions of New South Wales, Australia. PARTICIPANTS Three hundred fifty-seven adolescent girls aged 12 to 14 years. INTERVENTION A multicomponent school-based intervention program tailored for adolescent girls. The intervention was based on social cognitive theory and included teacher professional development, enhanced school sport sessions, interactive seminars, nutrition workshops, lunch-time physical activity sessions, handbooks and pedometers for self-monitoring, parent newsletters, and text messaging for social support. MAIN OUTCOME MEASURES Body mass index (BMI, calculated as weight in kilograms divided by height in meters squared), BMI z score, body fat percentage, physical activity, screen time, dietary intake, and self-esteem. RESULTS After 12 months, changes in BMI (adjusted mean difference, -0.19; 95% CI, -0.70 to 0.33), BMI z score (mean, -0.08; 95% CI, -0.20 to 0.04), and body fat percentage (mean, -1.09; 95% CI, -2.88 to 0.70) were in favor of the intervention, but they were not statistically different from those in the control group. Changes in screen time were statistically significant (mean, -30.67 min/d; 95% CI, -62.43 to -1.06), but there were no group by time effects for physical activity, dietary behavior, or self-esteem. CONCLUSIONS A school-based intervention tailored for adolescent girls from schools located in low-income communities did not significantly reduce BMI gain. However, changes in body composition were of a magnitude similar to previous studies and may be associated with clinically important health outcomes. TRIAL REGISTRATION anzctr.org.au Identifier: 12610000330044.

Objective: To evaluate the effectiveness of Sprinkles alongside infant and young child feeding (IYCF) education compared with IYCF education alone on anemia, deficiencies in iron, vitamin A, and zinc, and growth in Cambodian infants.

Design: Cluster-randomized effectiveness study.

Setting: Cambodian rural health district.

Participants: Among 3112 infants aged 6 months, a random subsample (n = 1350) was surveyed at baseline and 6-month intervals to age 24 months.

Intervention: Daily micronutrient Sprinkles alongside IYCF education vs IYCF education alone for 6 months from ages 6 to 11 months.

Main outcome measures: Prevalence of anemia; iron, vitamin A, and zinc deficiencies; and growth via biomarkers and anthropometry.

Results: Anemia prevalence (hemoglobin level <11.0 g/dL [to convert to grams per liter, multiply by 10.0]) was reduced in the intervention arm compared with the control arm by 20.6% at 12 months (95% CI, 9.4-30.2; P = .001), and the prevalence of moderate anemia (hemoglobin level <10.0 g/dL) was reduced by 27.1% (95% CI, 21.0-31.8; P < .001). At 12 and 18 months, iron deficiency prevalence was reduced by 23.5% (95% CI, 15.6-29.1; P < .001) and 11.6% (95% CI, 2.6-17.9; P = .02), respectively. The mean serum zinc concentration was increased at 12 months (2.88 μg/dL [to convert to micromoles per liter, multiply by 0.153]; 95% CI, 0.26-5.42; P = .03). There was no statistically significant difference in the prevalence of zinc and vitamin A deficiencies or in growth at any time.

Conclusions: Sprinkles reduced anemia and iron deficiency and increased the mean serum zinc concentration in Cambodian infants. Anemia and zinc effects did not persist beyond the intervention period. TRIAL REGISTRATION anzctr.org.au Identifier: ACTRN12608000069358.

OBJECTIVE To determine the prevalence of secondhand smoke (SHS) exposure among infants and young children who received preventive care at pediatric preventative care clinics associated with an urban public hospital. Cotinine, a metabolite of nicotine, has been used to study SHS exposure in population-based studies of children 3 years of age or older. DESIGN Retrospective study using a convenience sample. SETTING Urban county pediatric primary care clinics in San Francisco, California. PARTICIPANTS A total of 496 infants and children (mean [SD] age, 2.4 [1.9] years). INTERVENTIONS Discarded plasma samples (which were routinely collected for lead screening) were tested, and medical records were reviewed, for SHS exposure. MAIN OUTCOME MEASURE Secondhand smoke exposure based on cotinine plasma level and history of exposure in the medical record. RESULTS Thirteen percent of parents reported that their child was exposed to SHS, yet biochemical testing detected cotinine in 55% of samples, at a geometric mean (SD) of 0.23 (3.55) ng/mL. There were no significant sex or age differences. African American children had much higher mean cotinine levels than did Latino children (multiplicative factor change in cotinine, 6.01 ng/ml [95% Cl, 4.49-8.05 ng/ml] [correction]. CONCLUSION In a city with a low smoking rate (12%) and public smoking bans, we documented 55% exposure among infants and young children, using a plasma biomarker, compared with 13% exposure reported by parents. Because SHS is associated with significant respiratory diseases and parents underreport exposure, routine biochemical screening should be considered as a tool to identify and reduce SHS exposure.

OBJECTIVE To identify when youth are most likely to start using prescription pain relievers to get high or for other unapproved indications outside the boundaries of what a prescribing physician might intend (ie, extramedical use). DESIGN Cross-sectional surveys of adolescent cohorts, 2004 to 2008. SETTING The United States. PARTICIPANTS Large nationally representative samples of youth in the United States who had been assessed for the 2004 through 2008 National Survey on Drug Use and Health, yielding data from 138 729 participants aged 12 to 21 years. MAIN OUTCOME MEASURES Estimated age-specific risk of starting extramedical use of prescription pain relievers, year by year, and confirmation of age at peak risk by tracing the experience of individual cohorts during this period. RESULTS The estimated peak risk of starting extramedical use of prescription pain relievers occurs in midadolescence, well before the college years. The age at peak risk is 16 years, when an estimated 2% to 3% become newly incident users. Smaller risk estimates are observed at age 12 to 14 years and at age 19 to 21 years. CONCLUSIONS For initiatives to prevent youth from using prescription pain relievers to get high or for other unapproved indications, a focus on the last year of high school and the post-secondary school years may be too little too late. Practice-based approaches are needed in addition to public health interventions based on effective alcohol and tobacco prevention programs during the earlier adolescent years.