Characterisation of Tobacco Use and its Associated Factors Among Older Youths in an Urban Setting: The Case of Wakiso, Uganda

Introduction: Tobacco smoking increases the risk of death from many diseases, including ischemic heart disease, cancer, stroke, chronic obstructive pulmonary disease, diabetes, and other fatal and non-fatal diseases. Efforts have been invested towards cessation of tobacco smoking among youths aged 18-35 years. However, population-based data is limited on tobacco smoking in Wakiso district among youths. Therefore, this study aimed to determine the prevalence and factors associated with tobacco smoking among youths aged 18-35 years in Wakiso district Uganda.

Methods: Data from a Population-based survey in Wakiso district collected between October 2019 and September 2020 were used to determine the prevalence of tobacco smoking and associated factors. A cross-sectional design was employed. This study used multivariable logistic regression to estimate odds ratios and 95% confidence intervals (CI) for the association between tobacco smoking and various factors among youths aged (18-35) years in Wakiso district Uganda.

Results: A total of 1,092 participants were enrolled of whom 631(57.8%) were females. The mean age was 25.8 (SD=4.8) years. A total of 35 (3.2 %) reported current tobacco smoking while 64(5.9%) ever used tobacco. The mean age at smoking initiation was 20.6 (SD= 5.3) years. In the multivariable analysis, age groups 25-29 years (aOR= 3.66, [95% CI: 1.15, 11.65]) and 30-35 years (aOR= 4.26, [95% CI; 1.32, 13.72]) were more likely to smoke compared to those under 25 years). Other positively associated factors included alcohol users (aOR= 4.86, [95% CI: 2.01, 11.74]), HIV positive status (aOR= 5.43, [95% CI: 1.86, 15.86]), living with friends or relatives who smoke (aOR=9.93, [95% CI: 1.86, 15.86]), and being male (aOR=4.50 [95% CI; 1.82, 11.13]).

Conclusion: Overall tobacco smoking among youths aged 18-35 years is low compared to national prevalence of 9%. However, the focus should be on males, older youths, alcohol users, and HIV-positive youths including those living with friends or relatives who smoke.