Childhood Tobacco Smoke Exposure Ups Risk of ADHD

Hispanics and other races at higher risk than non-Hispanic whites and blacks
By Lindsey Marcellin
HealthDay Reporter

MONDAY, Sept. 20 (HealthDay News) -- Exposure to environmental tobacco smoke in childhood increases the odds of attention-deficit/hyperactivity disorder (ADHD), but the magnitude of risk seen with elevated serum cotinine levels varies by race, according to research published online Sept. 20 in Pediatrics.

Xiaohui Xu, Ph.D., of the University of Florida in Gainesville, and colleagues examined the association between postnatal environmental tobacco smoke exposure, measured with serum cotinine levels, and ADHD among children 4 to 15 years of age. After controlling for prenatal exposure, the interactions of race and serum cotinine levels with ADHD were also studied.

Overall, the researchers found that ADHD prevalence increased as serum cotinine levels increased, but the magnitude of the cotinine effect varied by race. Comparing same-race children with the highest and lowest cotinine levels showed an ADHD odds ratio of 2.72 for Mexican-American children and 5.32 for children of races designated as "other." For non-Hispanic whites and non-Hispanic blacks, there were no significant associations between cotinine level and ADHD.

"Although it is impossible to control for all confounders and/or biases in measurements of outcome and covariates in our analysis, this study supports the hypothesis that postnatal environmental tobacco smoke exposure, independent of prenatal smoking exposure, is an important risk factor for ADHD. Moreover, our study suggests that the effects of postnatal environmental tobacco smoke exposure on ADHD may differ according to race. The findings warrant further investigation," the authors write.

Abstract
Full Text (subscription or payment may be required)

Copyright © 2010 HealthDay. All rights reserved.

Powered by

jQuery UI Accordion - Default functionality

For life-long learning and continuing professional development, come to Lippincott's NursingCenter.

Nursing Jobs Plus
Featured Jobs
Recommended CE Articles

Blunt Chest Trauma
Journal of Trauma Nursing, November/December 2014
Expires: 12/31/2016 CE:2 $21.95


The School Age Child with Congenital Heart Disease
MCN, The American Journal of Maternal/Child Nursing, January/February 2015
Expires: 2/28/2017 CE:2.5 $24.95


Understanding multiple myeloma
Nursing Made Incredibly Easy!, January/February 2015
Expires: 2/28/2017 CE:2 $21.95


More CE Articles

Subscribe to Recommended CE

Recommended Nursing Articles

Comprehensive Care: Looking Beyond the Presenting Problem
Journal of Christian Nursing, January/March 2015
Free access will expire on March 2, 2015.


Pain and Alzheimer dementia: A largely unrecognized problem
Nursing Made Incredibly Easy!, January/February 2015
Free access will expire on February 16, 2015.


Glycemic control in hospitalized patients
Nursing2015 Critical Care, January 2015
Free access will expire on February 16, 2015.


More Recommended Articles

Subscribe to Recommended Articles

Evidence Based Practice Skin Care Network NursingCenter Quick Links What’s Trending Events