Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/88160
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Title: Association of smoking behavior among Chinese expectant fathers and smoking abstinence after their partner becomes pregnant : a cross-sectional study
Authors: Xia, W
Li, WHC
Cai, WZ
Song, PG
Ho, LLK
Cheung, AT
Luo, YH
Zeng, CX
He, L
Gao, C
Ho, KY 
Issue Date: 2020
Source: BMC pregnancy and childbirth, 2020, v. 20, 449, p. 1-11
Abstract: Background Exposure to secondhand smoke (SHS) during pregnancy can cause pregnancy complications and adverse birth outcomes. About 40% of Chinese expectant fathers are smokers and they rarely attempt to quit smoking. There is a paucity of effective smoking cessation services targeting this population. In this study, we assessed the smoking behavior of Chinese expectant fathers and examined its association with smoking abstinence after their partner became pregnant, which is an essential prerequisite for designing effective smoking cessation interventions.
Methods We conducted a cross-sectional survey in the obstetrics and gynecology clinic of three tertiary hospitals in China. Expectant fathers who smoked at least one cigarette per day for 1month within the past 12months were invited to participate in this study. The participants were asked to complete a structured questionnaire that assessed their smoking behaviors before and after their partner became pregnant.
Results From December 2017 to March 2018, we recruited a total of 466 eligible expectant fathers, among whom 323 (69.3%) were identified as current smokers and 143 (30.7%) were ex-smokers. Using lasso regression, 19 features were selected from among 27 independent variables. The results of the selected multivariable logistic regression model showed that knowledge about the health hazards of smoking among smokers (odds ratio (OR) 1.39; 95% confidence interval (CI) 1.24 to 1.58; p<0.001), knowledge about the health hazards of SHS to pregnant women (OR 1.46; 95% CI 1.09 to 1.97; p<0.001), knowledge about harm to the fetus and newborn (OR 1.58; 95% CI 1.25 to 2.03; p<0.001), and being a first-time expectant father (OR 2.08; 95% CI 1.02 to 3.85; p=0.046) were significantly positively associated with smoking abstinence among expectant fathers after their partner became pregnant. Significantly negative associations were found for severe dysfunctionality in terms of family support (OR 0.48; 95% CI 0.24 to 0.95; p=0.036) and smoking only outside the home (OR 0.81; 95% CI 0.26 to 0.98; p<0.001).
Conclusions In this study, we identified several factors associated with smoking abstinence among expectant fathers after their partner became pregnant. These findings can guide the development of effective interventions targeting expectant fathers, to help them quit smoking.
Keywords: Smoking behavior
Expectant fathers
Maternal and neonatal health
Tobacco abstinence association
Smoking cessation
Lasso regression
Publisher: BioMed Central
Journal: BMC pregnancy and childbirth 
EISSN: 1471-2393
DOI: 10.1186/s12884-020-03148-8
Rights: © The Author(s). 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.
The following publication Xia, W., Li, W. H. C., Cai, W. Z., Song, P. G., Ho, L. L. K., Cheung, A. T., . . . Ho, K. Y. (2020). Association of smoking behavior among Chinese expectant fathers and smoking abstinence after their partner becomes pregnant: A cross-sectional study. Bmc Pregnancy and Childbirth, 20, 1-11 is available at https://dx.doi.org/10.1186/s12884-020-03148-8
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