In conclusion , the deficiency of vitamin D is associated with an increased level of BMI in the studies of both diabetic and non-diabetic subjects .
The deficiency of vitamin D is prevalent all over the world .
Studies have shown that vitamin D may play an important role in the development of obesity .
The current study was conducted to quantitatively evaluate the association between serum 25-(OH ) vitamin D levels  and the risk of obesity in both diabetic and non-diabetic subjects .
Serum 25-hydroxyvitamin D level and diabetic nephropathy in patients with type 2 diabetes mellitus
Abstract Objective Patients with chronic kidney disease have a very high prevalence of deficiency of 25-hydroxyvitamin D [ 25(OH)D ] . We evaluate the association between 25(OH)D and diabetic nephropathy ( DN ) in a Chinese sample with type 2 diabetes mellitus . Method The subjects were patients with diabetes mellitus who were hospitalized at our hospital during the period from June 2012 to July 2014 .  Serum levels of 25(OH)D were tested at admission . DN was defined as a urinary albumin-to-creatinine ratio ≥30 mg/g in a r and om spot urine sample . Multivariate analyses were performed using logistic regression models . Results We found that serum 25(OH)D levels were significantly lower in diabetes with DN as compared to without DN [ 8.5 ( IQR 6.8–11.3 ) vs. 13.9 ( IQR 11.2–18.2 ) ng/ml , P < 0.0001 ] . Based on the ROC curve , the optimal cutoff value of serum 25(OH)D levels as an indicator for diagnosis of DN was projected to be 10.5 ng/ml , which yielded a sensitivity of 82.6 % and a specificity of 72.7 % , with the area under the curve at 0.807 [ 95 % confidence interval ( CI ) 0.764–0.849 ] . Multivariate logistic regression analysis adjusted for common risk factors showed that with serum 25(OH)D level ≤10.5 ng/ml was an independent indicator of DN [ odds ratio ( OR ) = 6.559 ; 95 % CI 2.864–11.368 ] . Conclusions Our findings suggested that diabetes with DN had lower serum 25(OH)D levels and that determination of 25(OH)D statuses might be used to identify patients at increased risk of developing nephropathy complications
In conclusion , the deficiency of vitamin D is associated with an increased level of BMI in the studies of both diabetic and non-diabetic subjects .
The deficiency of vitamin D is prevalent all over the world .
Studies have shown that vitamin D may play an important role in the development of obesity .
The current study was conducted to quantitatively evaluate the association between serum 25-(OH ) vitamin D levels  and the risk of obesity in both diabetic and non-diabetic subjects .