Table-II.

The mean and SEM of BMI before and after metformin therapy and the difference in two response groups and within the group (N=200).

BMI kg/m2	Responders (Mean±SEM) (n=81)	Non-Responders (Mean±SEM) (n=119)
Baseline	24.87±0.44kg/m2	25.24±0.55kg/m2
After 3 months	24.63±0.39 kg/m2	24.85±0.50kg/m2
Decrease in BMI within a group	0.24±0.11 kg/m2	0.39±0.20 kg/m2
p-value for decrease	0.00*	0.00*
Difference between two groups	0.15±0.04 kg/m2
p-value for difference	0.68

^*p-value significant <0.05