Association of rs7775228 and rs10947262 with knee osteoarthritis.

Odds ratios (ORs) and P values for the independence test were calculated by the Mantel-Haenszel method. aOR of the risk allele from the two-by-two allele frequency table. bP values of the Pearson's χ2 test for the allele model. cResults of the Breslow-Day test. dMeta-analysis of Japanese studies. eMeta-analysis of European studies. fMeta-analysis of all studies.