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Smoking and tobacco
Research
Effect of self-reported home smoking restriction on smoking initiation among adolescents in Taiwan: a prospective cohort study
  1. Dih-Ling Luh1,2,
  2. Hsiu-Hsi Chen3,
  3. Amy Ming-Fang Yen4,
  4. Ting-Ting Wang4,
  5. Sherry Yueh-Hsia Chiu5,
  6. Ching-Yuan Fann6,
  7. Sam Li-Sheng Chen4
  1. 1School of Public Health, Chung Shan Medical University, Taichung, Taiwan
  2. 2Department of Family and Community Medicine, Chung Shan Medical University Hospital, Taichung, Taiwan
  3. 3Graduate Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taipei, Taiwan
  4. 4School of Oral Hygiene, College of Oral Medicine, Taipei Medical University, Taipei, Taiwan
  5. 5Department and Graduate Institute of Health Care Management, Chang Gung University, Taoyuan, Taiwan
  6. 6Department of Health Industry Management, School of Healthcare Management, Kainan University, Taoyuan, Taiwan
  1. Correspondence to Dih-Ling Luh; luh{at}csmu.edu.tw

Abstract

Objective The aims of this study were to investigate the influence of home smoking restriction (HSR) and the modified effect of parental smoking on smoking initiation among adolescents.

Design Prospective Cohort Study.

Setting Junior high school in Keelung City, Taiwan.

Participants This study collected and evaluated primary data from the Adolescent Smoking and Other Health-Related Behaviour Survey conducted in Keelung City, which aimed to investigate smoking and health-related behaviours in junior high school students (2008–2009). Data on students free of smoking in 2008 and following them until 2009 (n=901) to ascertain whether they had started smoking were analysed with logistic regression mode to examine the proposed postulates.

Main outcome measure The outcome variable was smoking initiation, which was defined as smoking status (yes/no) in the 2009 follow-up questionnaire. The main independent variable was HSR obtained from an adolescent self-reported questionnaire. Information on parental smoking was measured by adolescents self-reporting the smoking behaviour of their father and mother.

Results The rate of HSR was 29.79% among 7th grade adolescents. The effect of HSR on smoking initiation in adolescents was statistically significantly modified by paternal smoking (p=0.04) but not by maternal smoking (p=0.54). The effect of HSR on smoking initiation was small for fathers with the habit of smoking (OR=0.89, 95% CI (0.42 to 1.88)), but the corresponding effect size was 3.2-fold (OR=2.84, 95% CI 1.19 to 6.81) for fathers without the habit of smoking.

Conclusions Paternal smoking behaviour may play an interactive role with HSR in preventing smoking initiation among Taiwanese adolescents.

  • PUBLIC HEALTH
  • SOCIAL MEDICINE

This is an Open Access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/

https://doi.org/10.1136/bmjopen-2014-007025

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