IL1B and pneumoconiosis: In addition, we found no obvious relation between the IL-1β-511 mutation and pneumoconiosis risk (T vs. C: OR = 1.22, 95%CI = 0.91–1.64, p = 0.176; TT vs. CC: OR = 1.46, 95%CI = 0.86–2.49, p = 0.160; CT vs. CC: OR = 1.06, 95%CI = 0.75–1.81, p = 0.737; TT + CT vs. CC: OR = 1.17, 95%CI = 0.80–1.72, p = 0.419; TT vs. CC + CT: OR = 1.42, 95%CI = 0.96–2.12, p = 0.083, Figure 5; Table 2).