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. 2018 Apr 12;126(4):047005. doi: 10.1289/EHP2738

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EHP is an open-access journal published with support from the National Institute of Environmental Health Sciences, National Institutes of Health. All content is public domain unless otherwise noted.

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Graph plotting odds ratio with 95 percent confidence intervals (y-axis) obtained for children aged 1 to 2 years, 4 to 6 years, 8 to 10 years, and 14 to 16 years (x-axis) to examine the association of SHS exposure with asthma and rhinoconjunctivitis. — Secondhand smoke (SHS) exposure in childhood in relation to adolescent-onset asthma and rhinoconjunctivitis. Odds ratios (ORs) and 95% confidence intervals (CIs) were obtained by logistic regression and were adjusted for sex, parental education, parental allergy, older siblings, breastfeeding, study center, intervention arm, day-care attendance, and maternal smoking during pregnancy.