Table 1.

Comparison of Characteristics of Women Aged 18–64 Diagnosed with Invasive Breast Cancer from the Pennsylvania Cancer Registry in 2007 and Survey Respondents

	2007 Registry Population (N=4920)	Respondents (N=2258)
Age at diagnosis (Mean ± SD)	52.1 ± 8.2	52.1 ± 8.1
ER/PR status, N (%)
Positive	3728 (76)	1779 (79)*
Negative	940 (19)	411 (18)
Unknown	252 (5)	67 (3)
Stage at Diagnosis, N (%)
Local	3005 (61)	1460 (65)*
Regional	1591 (32)	719 (32)
Distant	225 (5)	50 (2)
Unstaged/Unknown	96 (2)	29 (1)
Race
White	4273 (87)	2026 (90)*
Black	494 (10)	145 (6)
Hispanic	82 (2)	34 (2)
Other/Unknown	68 (1)	31 (1)

^*p<0.05, one sample t-test