Does Probability Guided Hysteroscopy Reduce Costs in Women Investigated for Postmenopausal Bleeding?

Table 2

Accuracy, uncertainty, and impact of cut-off values for predicted probability of a failed endometrial biopsy in women with postmenopausal bleeding and endometrial thickness of >4.0 mm.

Cut-off failure probability (%)	Sensitivity	Specificity	Costs of strategy I (€)	Costs of strategy II (€)	Expected difference (strategy II − strategy I) (€)
50%	0.30 (0.25–0.35)	0.86 (0.81–0.91)	460	472	12
55%	0.21 (0.16–0.26)	0.92 (0.87–0.97)	460	475	15
60%	0.14 (0.09–0.19)	0.96 (0.91–1.0)	460	460	0
65%	0.075 (0.025–0.125)	0.99 (0.94–1.0)	460	457	−3
70%	0.008 (0.0–0.06)	0.99 (0.94–1.0)	460	462	2