Sarcouncil Journal of Internal Medicine and Public Health

Abstract: Background: Smoking is a major public health concern associated with numerous physical and mental health issues that adversely affect individuals' quality of life (QoL) While the detrimental physical effects of smoking are well-documented, its impact on various domains of QoL warrants further exploration where This study aims to evaluate the relationship between smoking status, intensity, and duration with QoL among adults, and to identify the extent to which smoking influences physical, mental, and social well-being and our study disigned by A cross-sectional study was conducted on a sample of [150 patients] from Iraq with study period between (22-5-2024 to 3-3-2025) where adults, comprising both smokers and non-smokers with Data collection involved demographic questionnaires, smoking history, and QoL assessment using validated instruments and Participants were categorized based on smoking status, daily cigarette consumption, and years of smoking, Statistical analyses included descriptive statistics, t-tests, ANOVA, and multivariate regression to examine associations while controlling for confounders. Our results revealed that smokers reported significantly lower overall QoL scores compared to non-smokers (mean scores: 58.7 vs. 72.4, p < 0.001). This decline was observed across all domains—physical health, mental health, and social functioning; therefore, higher smoking intensity and longer duration were associated with further reductions in QoL. Heavy smokers (>20 cigarettes/day) had a mean score of 52.3, compared to 64.8 among light smokers (<10 cigarettes/day) additionally Regression analysis confirmed that smoking independently predicted lower QoL after adjusting for demographic variables, we concloude from our study Smoking substantially impairs multiple facets of QoL, with greater smoking intensity and longer duration exacerbating these effects. These findings underscore the importance of robust tobacco control measures and targeted cessation programs to enhance individuals' well-being and overall life satisfaction.