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Yumiko Yanase, MD, MPH, Department of Public Health, Nihon University, School of Medicine, 30-1, Oyaguchi Kamimachi, Itabashi-ku, Tokyo, 1738610, Japan, 81-3-3972-8111, yumi615@rc4.so-net.ne.jp, Tomofumi Sone, MD, PhD, Department of Public Health Policy, National Institute of Public Health, Japan, 2-3-6 Minami, Wako City, Saitama, 3510197, Japan, and Takashi Ohida, MD, PhD, Department of Public Health, School of Medicine, Nihon University, 30-1 Ohyaguchikami-machi, Itabashi-ku, Tokyo, 1738610, Japan.
OBJECTIVES: This study examines factors associated with the change of smoking behavior during and after pregnancy among mothers, and the extent of passive smoking among their children. METHODS: The survey was conducted in three wards in Tokyo, Japan, from November to December in 2002. Women who came to public health centers for their children's 1.5 or 3 year-old health check-up were anonymously surveyed with a self-administered questionnaire. RESULTS: The number of respondents was 821 and response rate was 59.1%. 26.6% of all respondents smoked cigarettes before pregnancy. 82.4% of women who smoked before pregnancy quit during pregnancy. Among women who quit smoking during pregnancy, approximately 40% restarted within 6 months after delivery, and about 60% within 18 months. Ending breastfeeding and living with a smoker were strongly associated with return to smoking. Approximately 40% of women who restarted smoking did so within 1 month after the end of breastfeeding. Of the women who quit smoking during pregnancy, 70% of those living with a smoker restarted, whereas only 30% of those living with non-smokers returned to the habit. Although two-thirds of the women who quit smoking during pregnancy said that quitting was easy, 60% of them restarted. More than 60% of children whose parents smoked were exposed to secondary smoke. CONCLUSIONS: Preventive measures must be instituted before the end of breastfeeding to discourage postpartum return to smoking. Since women whose partners smoke are less likely to maintain their abstinence from smoking, intervention programs should involve the whole family.
Learning Objectives: At the conclusion of the study, the participant will be able to
Presenting author's disclosure statement:
I do not have any significant financial interest/arrangement or affiliation with any organization/institution whose products or services are being discussed in this session.