Publication:

A case control study to determine the role of vitamin D in the risk of coronary artery disease among type 2 diabetic individuals

Background Diabetes Mellitus comprises a group of metabolic disorder leading to hyperglycaemia. Vitamin D deficiency plays a role in Type 2 Diabetes Mellitus pathogenesis. Vitamin D appears to affect several metabolisms that have been associated with coronary artery disease. Vitamin D level has been recently considered as an adjustable risk factor of cardiovascular diseases, in individuals with type 2 Diabetes.

Methods This case control study was conducted in the Department of Medicine, UPUMS. 100 diabetic individuals with low Vitamin D level were taken as cases and 100 diabetic individuals with normal vitamin D level as control. History and examination with necessary investigations were done. Patients with positive history were subjected to investigations to diagnose CAD.

Results The proportion of case and controls had no significant difference in age distribution. The risk of coronary artery disease was 2.76 times higher among diabetes mellitus patients with vitamin D deficiency (1.36-5.59). The risk of CAD was adjusted for various risk factors (age, sex, hypertension, smoking, physical activity, and lipid profile) Odds ratio was found to be 2.8 (95% CI-1.19-6.94, p-0.018).

Conclusions Vitamin D deficiency among diabetes patients was found to be an independent risk factor for CAD after adjusting other risk factors emphasizing that vitamin D can be a potential risk factor for development of coronary artery disease.