Table 2.

Diagnostic efficacy of endometrial biopsy for endometrial lesions (n=207)

Endometrial biopsy	Hysteroscopic curettage
	Endocrine changes in endometrium		Endometrial hyperplasia		Endometrial polyps		Endometrial carcinoma
	Yes	No	Yes	No	Yes	No	Yes	No
Yes	16	5	38	8	5	2	128	5
No	1	185	3	158	4	196	12	62
Sensitivity	0.941		0.927		0.556		0.914
Specificity	0.974		0.952		0.990		0.925
AUC	0.957		0.939		0.773		0.920
95% CI	0.891-1.000		0.889-0.989		0.567-0.978		0.875-0.965