To Assess Knowledge of Patients Regarding Cigarette Smoking for Coronary Artery Disease at Mayo Hospital & PIC, Lahore: A Cross-Sectional Study
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Background: Cigarette smoking is an important modifiable cardiovascular risk factor, while awareness of secondhand smoke, vaping, and the cardiovascular benefits of cessation may be less consistent among patients receiving cardiac care. Objective: To assess patients’ knowledge regarding cigarette smoking and related tobacco exposures as risk factors for coronary artery disease at Mayo Hospital and the Punjab Institute of Cardiology, Lahore. Methods: A descriptive cross-sectional study was conducted from October to December 2025 among 215 adult cardiology outpatients recruited by convenience sampling. Knowledge was assessed using a 15-item Yes/No questionnaire covering CAD, active smoking, secondhand smoke, vaping, and prevention and cessation. Correct responses were scored 1 and incorrect responses 0. Descriptive statistics and Cronbach’s alpha were calculated using IBM SPSS Statistics version 27.0. Results: The mean knowledge score was 10.63 ± 3.51 out of 15, equivalent to 70.88% ± 23.42%. Good knowledge was observed in 90 participants (41.9%), moderate knowledge in 94 (43.7%), and poor knowledge in 31 (14.4%). Active-smoking knowledge was highest at 85.6%, whereas correct-response proportions were 65.3% for secondhand smoke, 64.7% for CAD knowledge, 64.2% for prevention and cessation, and 60.6% for vaping. Cronbach’s alpha was 0.776. Conclusion: Patients demonstrated generally moderate-to-good knowledge of smoking-related CAD risk, but important gaps remained regarding secondhand smoke, vaping, cessation, and basic CAD concepts
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