Knowledge of Myocardial Infarction and associated factors among patients attending a selected tertiary care hospital in Colombo district, Sri Lanka - A Cross-Sectional Study

Background: Myocardial infarction (MI) is a major global health concern and one of the leading causes of morbidity and mortality. This study aimed to describe knowledge of MI and associated factors among patients attending a selected tertiary care hospital in Colombo district, Sri Lanka. Methods: A descriptive cross-sectional study method was conducted in cardiology clinic at a selected tertiary care hospital of Colombo district, Sri Lanka using systematic random sampling. A pretested interviewer administered questionnaire was used for data collection. Logistic regression models were used to determine the association between knowledge and relevant factors. Results: The mean age of the patients was 52.56 years (SD=12.96); range 18 to 89). Good knowledge of MI was observed in 46.8% (n= 117) of participants. The knowledge mean score was lowest for signs and symptoms (0.46, SD= 0.499) and preventive measures (0.47, SD=0.50), while knowledge of risk factors and complications (both 0.50, SD= 0.501) were comparatively higher. Only (30%, n=75) correctly identified MI as the death of heart muscle. Stress (42.4%, n=106) avoidance was less recognized preventive measure. Knowledge was significantly associated with factors such as younger age, nuclear family type, higher educational and receiving information about MI. Conclusions – Overall, less than half of the participants demonstrated good knowledge of MI. Targeted public educational programs are needed to improve knowledge of MI. Future research should include diverse populations and assess the long-term impact of educational interventions.