Smoking in pregnancy: a cross-sectional study in China
Xianglong Xu 1, 2, 3,  
Yunshuang Rao 4,  
Lianlian Wang 5, 6, 7,  
Sheng Liu 1, 2, 3,  
Jeff J. Guo 8,  
Manoj Sharma 9,  
Yong Zhao 1, 2, 3  
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School of Public Health and Management, Chongqing Medical University, Chongqing, China
Research Center for Medicine and Social Development, Chongqing Medical University, Chongqing, China
The Innovation Center for Social Risk Governance in Health, Chongqing Medical University, Chongqing, China
School of Nursing, Chongqing Medical University, Chongqing, China
The Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
Department of Reproduction Health and Infertility, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
Canada-China-New Zealand Joint Laboratory of Maternal and Fetal Medicine, Chongqing Medical University, Chongqing, China
Division of Pharmacy Practice and Administrative Sciences, College of Pharmacy, University of Cincinnati Medical Center, Cincinnati, USA
Department of Behavioral and Environmental Health, Jackson State University, Jackson, USA
Publish date: 2017-07-24
Tob. Induc. Dis. 2017;15(July):35
Findings on smoking among pregnant women were mostly from high income countries and were rarely from China. This study aimed to estimate the prevalence of smoking and its influencing factors among pregnant women living in China.

A cross-sectional analysis was conducted in this study. Data from pregnant women were collected in this study from June to August 2015 from 5 provinces of mainland China. A total of 2345 pregnant women were included in this study, the mean age of the participants was 28.12 years (SD 4.13).

About 82.9% of smoking women quit smoking after they were pregnant. The prevalence of smoking among pregnant women was 3.8%. Among the participants, 40.0, 30.7, 1.8, 29.9, 0.8, 31.4, 31.2, and 26.7% had husbands, fathers-in-law, mothers-in-law, fathers, mothers, colleagues, friends, and relatives, respectively, who were smokers. Compared with pregnant women of basic education level (junior middle school or below), those of the higher education level (undergraduate or above) were at higher risk of smoking (OR, 5.17; 95% CI, 2.00–13.39). Compared with pregnant women from rural areas, urban pregnant women were less likely to be current smokers (OR, 0.55; 95% CI, 0.32–0.94). Compared with pregnant women whose mothers-in-law did not smoke, those whose mothers-in-law smoked were at higher risk of smoking (OR, 4.67; 95% CI, 1.87–11.70). However, compared with pregnant women whose husband did not smoke, those whose husband smoked were not significantly at higher risk of smoking (OR, 1.12; 95% CI, 0.73–1.73).

Most of smoking women quit smoking after they became pregnant. Tailored intervention programs to reduce smoking in pregnant women should focus on those with higher education level, from rural areas, and pregnant women whose mothers-in-law smoke.

Yong Zhao   
School of Public Health and Management, Chongqing Medical University, No, 1 Yixueyuan Road, Yuzhong District, Chongqing 400016, China
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