Table 1.

Search strategy used in different databases

MEDLINE	PubMed	Embase
1. exp Coronary Disease/ 2. Coronary heart disease.mp. 3. exp Cerebrovascular Disorders/ 4. Cerebrovascular disease.mp. 5. exp Peripheral Arterial Disease/ 6. exp Rheumatic Heart Disease/ 7. Congenital heart disease.mp. 8. exp Venous Thrombosis/ 9. Deep vein thrombosis.mp. 10. exp Pulmonary Embolism/ 11. exp Cardiovascular Diseases/ 12. exp Myocardial Infarction/ 13. exp Stroke/ 14. 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8 or 9 or 10 or 11 or 12 or 13 15. exp Prevalence/ 16. exp Bangladesh/ 17. 14 and 15 and 16	Search ((Prevalence) AND Bangladesh) AND ((((((((((coronary heart disease) OR cerebrovascular disease) OR peripheral arterial disease) OR rheumatic heart disease) OR congenital heart disease) OR deep vein thrombosis) OR pulmonary embolism) OR cardiovascular disease) OR Heart attack) OR stroke)	1. exp ischemic heart disease/ 2. Coronary heart disease.mp. 3. exp cerebrovascular disease/ 4. exp peripheral occlusive artery disease/ 5. exp rheumatic heart disease/ 6. exp congenital heart disease/ 7. exp deep vein thrombosis/ 8. exp lung embolism/ 9. exp cardiovascular disease/ 10. exp heart infarction/ 11. exp cerebrovascular accident/ 12. 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8 or 9 or 10 or 11 13. exp prevalence/ 14. exp Bangladesh/ 15. 12 and 13 and 14