Self-Reported Exposure to Second-Hand Smoke and Positive Urinary Cotinine in Pregnant Nonsmokers.
10.3349/ymj.2009.50.3.345
- Author:
Yu Jin PAEK
1
;
Jeong Bae KANG
;
Seung Kwon MYUNG
;
Do Hoon LEE
;
Moon Woo SEONG
;
Hong Gwan SEO
;
Jung Jin CHO
;
Hong Ji SONG
;
Kyung Hee PARK
;
Chan Ho KIM
;
Jeong Ah KO
Author Information
1. Department of Family Medicine, Hallym University Sacred Heart Hospital, Anyang, Korea.
- Publication Type:Original Article ; Research Support, Non-U.S. Gov't
- Keywords:
Passive smoking;
pregnant women;
cotinine
- MeSH:
Adult;
Cotinine/*urine;
*Environmental Exposure;
Female;
Humans;
Pregnancy;
Regression Analysis;
*Tobacco Smoke Pollution
- From:Yonsei Medical Journal
2009;50(3):345-351
- CountryRepublic of Korea
- Language:English
-
Abstract:
PURPOSE: This cross-sectional study aimed to examine the association between self-reported exposure status to second-hand smoke and urinary cotinine level in pregnant nonsmokers. MATERIALS AND METHODS: We recruited pregnant nonsmokers from the prenatal care clinics of a university hospital and two community health centers, and their urinary cotinine concentrations were measured. RESULTS: Among a total of 412 pregnant nonsmokers, the proportions of self-reported exposure to second-hand smoke and positive urinary cotinine level were 60.4% and 3.4%, respectively. Among those, 4.8% of the participants who reported exposure to second-hand smoke had cotinine levels of 40 ng/mL (the kappa value = 0.029, p = 0.049). Among those who reported living with smokers (n = 170), "smoking currently permitted in the whole house" (vs. not permitted at home) was associated with positive urinary cotinine in the univariable analysis. Furthermore, this variable showed a significant association with positive urinary cotinine in the stepwise multiple logistic regression analysis [Odds ratio (OR), 15.6; 95% Confidence interval (CI) = 2.1-115.4]. CONCLUSION: In the current study, the association between self-reported exposure status to second-hand smoke and positive urinary cotinine in pregnant nonsmokers was poor. "Smoking currently permitted in the whole house" was a significant factor of positive urinary cotinine in pregnant nonsmokers. Furthermore, we suggest that a complete smoking ban at home should be considered to avoid potential adverse effects on pregnancy outcomes due to second-hand smoke.
