Table 1.

Study Population, Invasive Breast Cancers Diagnosed up to the End of the Control Group Screen, and Deaths From These Breast Cancers

Trial Arm	Age at Randomization, y	Women Randomized, No.	Invasive Breast Cancers, No.	Breast Cancer Deaths, No.
Intervention	39–49	11,792	125	33
	50–59	10,112	147	46
	39–59	21,904	272	79
Control	39–49	14,321	183	68
	50–59	15,997	234	88
	39–59	30,318	417	156