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[Randomized controlled trial for smoking cessation among city office employees]
Abstract:
To evaluate the effect of a smoking cessation program by health professionals, a randomized intervention study was carried out in the Omihachiman city office in 1993. Participants (n = 53), volunteers from current smokers in the city office, were randomly divided into intervention and control groups. The intervention group received intensive education for five months (i.e., the effect of smoking on health, the beneficial aspects of quitting smoking, how to stop smoking and how to deal with the withdrawal symptoms). Group lectures (two times) and individual counseling (three times) were used for health education. After five months, the control group was also given the same advice on smoking cessation. Comparison of smoking cessation rates between the two groups was performed at the end of the intervention period. Follow-up of all participants occurred at six and 12 months post intervention. After the five months of intervention, smoking cessation rate in the intervention group (19.2%) tended to be higher than that in the control group (7.4%), but was not significant (chi 2 = 1.62). Over all smoking cessation rates of all participants (n = 53) at the end of the 10 month intervention was 32.1% and at six months and 1 year after the end of the 10 month intervention were 24.5% and 13.2%, respectively. Comparison of participants who successfully stopped smoking and those who did not, it was revealed that younger age, lower expired air CO concentration (p < 0.01), and attitude for smoking cessation at the beginning were significantly related to smoking cessation. In our study, after five months, smoking cessation rate in the intervention group was about two times that of the control group, although the effectiveness of our smoking cessation program could not be validated due to small sample size. Taking into account the rate of smoking cessation after one year, We believe that programs by health professionals are effective for smoking cessation.