Vitamin D supplementation improves SIRT1, Irisin, and glucose indices in overweight or obese type 2 diabetic patients: a double-blind randomized placebo-controlled clinical trial

Table 2 The mean and standard deviation of physical activity, weight, and BMI in type 2 diabetes patients

Variable		Vitamin D (N = 42)	Placebo (N = 43)	P-value^*
Physical activity (MET. Minutes/week)	Baseline	685.50 (99–34,755)	462.00 (99–28,560)	0.346
	After intervention	693.00 (99–33,831)	462.00 (99–28,659)	0.333
	P-value^**	0.104	0.811
Weight (kg)	Baseline	77.38 (10.92)	79.27 (11.67)	0.442
	After intervention	77.13 (10.81)	78.77 (11.53)	0.502
	P-value^**	0.076	0.011
BMI (kg/m²)	Baseline	30.43 (3.23)	31.37 (3.40)	0.194
	After intervention	30.34 (3.32)	31.18 (3.42)	0.254
	P-value^**	0.097	0.009

*Independent t-test, **Paired t-test, kg Kilogram, cm Centimeter, BMI Body mass index, mg Milligram, MET Metabolic equivalent

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