MT-ND6 and Insulin resistance: More importantly, ND6 methylation level showed significant correlation with insulin resistance indices (p = 0.0054 for HOMA-IR and 0.0110 for FI; Figures 3(a) and 3(b)), but it had marginal interaction with FG (p = 0.1581; Figure 3(c)) and A1c (p = 0.3538; Figure 3(d)).