The analysis of the association between IL2RA and various risk factors detected a significant influence on CP by the interactions between genotype distribution in rs12244380 and pregnancy-induced hypertension; even after Bonferroni correction, the association between them was still significant (OR = 0.531, 95% CI = 0.266–1.059, P = 0.0005) (Table 6). The gene discussed is IL2RA; the disease is hypertension, pregnancy-induced.