The CYP1A1 rs1048943 which showed a non-statistically significant 10% increased risk of ovarian cancer per copy of the minor allele carried in the OCAC dataset (95% CI 0.77–1.57) was statistically significantly associated with risk of ovarian cancer on meta-analysis with the published literature and the OCAC data (ORadditive(add)=1.81, 95% CI 1.36–2.40, P<0.001) under a fixed effects model, but not a random-effects model (ORadd=1.61, 95% CI 0.74–3.51, P=0.23). The gene discussed is CYP1A1; the disease is ovarian cancer.