Background The impact of vitamin D deficiency on the incidence of various diseases and its relationship with the progression of diabetes mellitus type 2 (DMT2) is still controversial. The present study evaluated the incidence of vitamin D deficiency in patients with DMT2. Methodology A cross-sectional study was conducted in a tertiary care hospital, Sindh, Pakistan from October 2020 to September 2021. A total of 525 patients of DMT2 were recruited. Another 525 patients acted as healthy controls. In patients with DMT2, blood samples were taken in the morning to measure vitamin D levels. All socio-demographic and clinical data were documented in a predefined pro forma. The association between the incidence of DMT2 and hypovitaminosis was explored. Results The mean age of the patients was 50 ± 5.5 years. There were 100 (54.1%) male and 85 (45.9%) female patients. The mean duration of diabetes of the patients was 6.8 ± 2.4 years. The mean serum 25-hydroxy vitamin D level was 22.3 ±10.4 ng/ml. In the case group, the majority of the patients had vitamin D deficiency i.e. 54.1%, while only 25.9% of controls had hypovitaminosis. Vitamin D deficiency was significantly correlated with the occurrence of DMT2 (p<0.0001). Conclusion The current study indicates that patients with diabetes mellitus type 2 (DMT2) more frequently suffer from vitamin D deficiency. Those patients with vitamin D deficiency and DMT2 can benefit from vitamin D replenishment. This may help improve glycemic control in these patients. This study served as a catalyst for future studies where the relationship between hypovitaminosis and insulin resistance can be thoroughly explored.
Keywords: 25 (oh) vitamin d; 25- dihydroxy vitamin d; patient; types 2 diabetes; vitamin d levels (vit d level).
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