INS and type 2 diabetes mellitus: T2DM was also associated with higher admission HR (82.2 ± 19.9 vs 77.2 ± 17.8, P < 0.001) and fasting serum glucose level (13.2 ± 5.5 vs 7.9 ± 3.6, P < 0.001) and more likely to be treated with insulin infusion (40.2% vs 11.5%, P < 0.05).