TNF and diabetes mellitus: Figure 2 showed the ORs (95% CIs) estimate of TNF-α −308G>A (A vs. G allele) for each study and the overall estimate for the pooled data. The overall allelic OR (95% CI) was 1.63 (1.17–2.25), indicating that this allele brought a modest-size allelic risk of diabetes to Han Chinese population.