Table 2.

Mammography Recall Rates by Randomization Group, Stratified by Type of Hormone Therapy

	Mammography recall by Study Group				Relative Risk of Mammography recall
Characteristics	No- suspension n = 542	1-month suspension n = 478	2-months suspension n = 451	p- Value	1-month vs. No-suspension	2-month vs. No-suspension
All study participants					RR (95% CI)	RR (95% CI)
# recalled	61	59	44
Recall rate (95% CI)	11.3 (8.7, 14.2)	12.3 (9.5,15.6)	9.8 (7.2, 12.9)	.45	1.10 (0.78, 1.53)	0.87 (0.60, 1.25)
Estrogen only at baseline	n = 335	n = 295	n = 286
# recalled	31	34	24
Recall rate (95% CI)	9.3 (6.1, 12.4)	11.5 (7.9, 15.2)	8.4 (5.2, 11.6)	.42	1.25 (0.79, 1.97)	0.91 (0.55, 1.51)
Estrogen + progestin at baseline	n = 207	n = 183	n = 165
# recalled	30	25	20
Recall rate (95% CI)	14.5 (9.7, 19.3)	13.7 (8.6, 18.7)	12.1 (7.1, 17.2)	.80	0.94 (0.58, 1.54)	0.84 (0.49, 1.42)