IARS1 and ovarian endometrioid carcinoma: Type of carcinoma showed a median IRS of 1 in endometrioid endometrial carcinomas (with a box length of 0–2 and a 95th percentile at 4), while endometrioid ovarian carcinomas and the clear cell type carcinomas had a median IRS of 0 (p < 0.001) (Figure 1).