INS and metabolic syndrome: The mean risk factors of metabolic syndrome was decreased in the metformin-insulin group (2.27 ± 1.13 vs. 2.03 ± 0.94, p = 0.06), whereas it did not change in the insulin alone group (2.31 ± 1.03 vs. 2.20 ± 0.94, p = 0.264).