Table 3.

Changes in endometrial thickness during mifepristone treatment

Evaluation	Group	N	Average ± SD	CI 95% for the average	% change	P*
Before treatment	10 mg	35	6.8 ± 2.5	5.9–7.7	–	0.220
	5 mg	35	6.2 ± 1.7	5.5–7.0	–
3 months’ treatment	10 mg	35	9.2 ± 4.5	7.7–10.7	35.3% ↑	0.013
	5 mg	33	7.0 ± 2.7	5.6–7.2	12.9% ↑
6 months’ treatment	10 mg	35	11.5 ± 6.3	9.0–12.5	69.4% ↑	0.002
	5 mg	31	7.4 ± 2.6	6.5–8.1	19.4% ↑
9 months’ treatment	10 mg	35	10.8 ± 6.6	8.8–14.0	58.8% ↑	0.013
	5 mg	31	7.6 ± 3.2	6.4–8.4	22.6% ↑

Note: ^*t-test.

Abbreviations: CI, confidence interval; SD, standard deviation.