Table 6. Stratification analysis for associations between genotypes of caspase-1 and the risk of silicosis.

	Ex2+37G>A OR (95%CI) *
	GG	GA
CDE (mg/m3-y)
<120	1.00	1.04(0.37–2.91)
≥120	1.00	26.37(3.35–207.39)
Age (years)
<70	1.00	1.36(0.33–5.60)
≥70	1.00	5.19(1.88–14.35)
Smoking
No	1.00	3.80(0.72–20.11)
Yes	1.00	3.47(1.40–8.64)

^*ORs were obtained from logistic regression models that were adjusted for age, smoking status, and CDE.