APOA5 and type 2 diabetes mellitus: Meta-analysis of −1131T/C of APOA5 gene [27], [29], [39], [44], [50] among 795 T2D cases and 3210 controls indicated that −1131T/C of APOA5 gene was associated with T2D in Chinese and Caucasian populations (Figure 3, the overall OR = 1.27, 95% CI = 1.03–1.57, P = 0.03).