Investigating the socio-demographic characteristics and smoking cessation incidence among smokers accessing smoking cessation services in primary care settings of Qatar, a Historical Cohort Study

Background Tobacco dependence is a chronic disease that often requires repeated interventions and multiple attempts to quit. Cigarette smoking is the leading preventable cause of mortality. Globally, an estimated 1.3 billion people smoke. In Qatar, Smoking cessation services (SCSs) are provided free of charge to citizens and at a minimal cost to non-citizens. This study aimed to measure the effectiveness of the smoking cessation program adopted by the Primary Health Care Corporation (PHCC) of Qatar. This was achieved through calculating the percentage of smoking cessation service users (survival probabilities) who maintained the non-smoking status after selected follow up periods. Moreover, the study highlighted the possible association of selected explanatory variables with smoking cessation survival probabilities.Background Tobacco dependence is a chronic disease that often requires repeated interventions and multiple attempts to quit. Cigarette smoking is the leading preventable cause of mortality. Globally, an estimated 1.3 billion people smoke. In Qatar, Smoking cessation services (SCSs) are provided free of charge to citizens and at a minimal cost to non-citizens. This study aimed to measure the effectiveness of the smoking cessation program adopted by the Primary Health Care Corporation (PHCC) of Qatar. This was achieved through calculating the percentage of smoking cessation service users (survival probabilities) who maintained the non-smoking status after selected follow up periods. Moreover, the study highlighted the possible association of selected explanatory variables with smoking cessation survival probabilities.Methods In this historical cohort study 490 participants were recruited by simple random sampling who attended the smoking cessation clinics (SCCs) in PHCC prior to 30/06/2021. The participants were contacted by phone and invited to participate in the study. The participants who agreed to participate in the study were interviewed utilizing a structured questionnaire.Results Initially 311 (63.5%) of the participants quitted smoking after receiving SCSs. There were statistically significant differences between quitting smoking and the nationality and the educational level of participants (p <= 0.001 and 0.02 respectively). About one fourth (23.3%) of individuals who initially quitted smoking relapsed and resumed smoking as early as 6 months after completing their SCC visits. This relapse rate increased to 38.7, 47.2 and 51.1% after 12, 24 and 36 months respectively. Less than a half (45.8%) maintained the non-smoking status after 42 months from their initially quitting.Conclusion and recommendations The findings of the study substantiate the effectiveness of SCSs designed within PHCC both in short- and long-term basis. Younger individuals, smokers with Arab ethnicity, smokers falling within high income and education groups were identified as high-risk groups and need highest focus. The accessibility to the service among the local population can be increased by upscaling the advertisement of the existing services.