Factors affecting smoking cessation success in individuals who applied to a smoking cessation centre.

Objectives: This study aims to assess the frequency of smoking cessation and to identify the factors affecting smoking cessation success among individuals seeking assistance at a smoking cessation centre.

Methods: This cross-sectional study included 1,570 individuals who applied to the smoking cessation centre in Izmir, Turkey, between 2009 and 2018, and completed three follow-ups. Data were obtained from the centre's records. Factors affecting smoking cessation success were analysed using logistic regression in multivariate analysis.

Results: The median age to start smoking was 19 (17-22), and the median number of cigarettes consumed per day was 20 (20-30). Among the participants, 59.9% exhibited a high/very high level of nicotine dependence, and 79.6% had attempted to quit smoking previously. The median number of patient follow-ups was 7 (5-10). Of the patients, 34.0% successfully quit smoking for one year. According to the multivariate analysis results, smoking cessation success increased with being married by 2.26 times (95% CI: 1.51-3.38, p < 0.001), the absence of other smokers in the household by 1.38 times (95% CI: 1.01-1.88, p = 0.04), having a low level of nicotine dependence by 1.75 times (95% CI: 1.23-2.48, p = 0.002), and more patient follow-ups by 1.61 times (95% CI: 1.52-1.72, p < 0.001).

Conclusions: Smoking cessation success is increased by the support and follow-up provided by healthcare professionals, the absence of other smokers in the household, and a low level of nicotine dependency.