Haplotype T[IL-1A(−889C/T)]/T[IL-1B (+3953C/T)]/L[IL-1RN] was associated with lower risks for CP (P < 0.01, OR=0.64, 95% CI = 0.47–0.88), similar to haplotype CCS (P < 0.01, OR = 0.58, 95% CI = 0.39–0.87) with T1DM. The gene discussed is IL1B; the disease is type 1 diabetes mellitus.