Table 3.

Enrollment Outcomes by Sex Stratified by Race, Ethnicity, and Age (Pooled Across Studies)

Characteristic	Enrolled		Screened Out				Sex Difference Screen-out, Percentage Points	P a
	Women, n	Men, n	Women		Men
			n	%	n	%
Raceb								.99
White	496	3864	170	26	1286	25	0.6	.78*
African American/black	860	2097	369	30	875	29	0.6	.71*
Ethnicityb								.15
Not Hispanic	1126	5050	476	29	1897	27	2.4	.06*
Hispanic	331	1332	90	21	396	23	−1.5	.51*
Age (years)								.06
<30	218	1187	59	21	283	19	2.0	.46*
30–39	372	1631	137	27	436	21	5.8	.005*
40–49	523	2102	209	29	882	30	−1.0	.62*
≥50	353	1487	162	32	702	32	−0.6	.83*

^a P values for each characteristic (eg, race) are from Breslow-Day tests; P-values for individual levels within characteristic (*) are from Fisher’s exact tests.

^bRace and ethnicity based on self-identification; other groups excluded due to small numbers.