Cytologic examination (95% Confidence interval）(%) Tissue biopsy (95% Confidence interval）(%) p*1 Sensitivity for detecting endometrial carcinoma 78.3 (66.7–87.3) 84.1 (73.3–91.8) 0.157 Sensitivity for detecting endometrial hyperplasia 54.5 (23.4–83.3) 90.9 (58.7–99.8) 0.045 Specificity 100.0 (59.0–100.0) 85.7 (42.1–99.6) *2 *1McNemar’s chi-square test *2Not calculable due to specificity of 100%

Table 4: Comparison of diagnostic accuracy between cytologic examination and tissue biopsy.