Compared to negative expression, positive p16 (OR = 3.15, 95% CI = 1.09–9.07) and positive ki67 (OR = 4.61, 95% CI = 1.70–12.58) were associated with higher odds of grades II and III tumors while positive p21 was associated with higher odds of endometrioid tumors (OR = 12.22, 95% CI = 1.45–102.78). Here, CDKN2A is linked to endometrioid tumor.