CRP and type 2 diabetes mellitus: There was heterogeneity among the groups, and the heterogeneity was large (P < 0.00001, I2 = 100%) using random-effects model for meta-analysis; the results showed that compared with male patients with type 2 diabetes, plasma CRP level in women with type 2 diabetes no significant difference (OR = −0.12, 95% CI (-0.13, -0.12), P < 0.0001); see Figure 3.