Age at diagnosis, years | | | .67 |
≤39 | 8 (1.7) | 4 (2.8) | |
40–49 | 106 (22.0) | 35 (24.5) | |
50–59 | 140 (29.1) | 36 (25.2) | |
60–69 | 100 (20.8) | 34 (23.8) | |
≤70 | 127 (26.4) | 34 (23.8) | |
Education* | | | .50 |
Less than high school | 30 (6.8) | 7 (5.2) | |
High school graduate or GED | 125 (28.3) | 34 (25.2) | |
Some college or technical school | 128 (29.0) | 48 (35.6) | |
College or postcollege graduate | 159 (36.0) | 46 (34.1) | |
Insurance* | | | .04 |
Yes | 449 (95.5) | 140 (99.3) | |
No | 21 (4.5) | 1 (0.7) | |
Family history of breast cancer* | | | .82 |
Yes | 193 (40.4) | 60 (42.0) | |
No | 279 (58.4) | 82 (57.3) | |
Don’t know | 6 (1.3) | 1 (0.7) | |
Personal history of breast cancer* | | | <.001 |
Yes | 65 (13.6) | 43 (30.1) | |
No | 413 (86.4) | 100 (69.9) | |
Menopausal status and current HRT use* | | | .58 |
Premenopausal | 119 (27.1) | 35 (27.1) | |
Postmenopausal, no HRT | 210 (47.7) | 56 (43.4) | |
Postmenopausal, HRT | 111 (25.2) | 38 (29.5) | |
Breast density* | | | .48 |
Fatty | 25 (5.5) | 5 (3.5) | |
Scattered density | 213 (46.6) | 66 (46.2) | |
Heterogeneously dense | 184 (40.3) | 56 (39.2) | |
Extremely dense | 35 (7.7) | 16 (11.2) | |
Time since the mammogram before the one associated with the cancer diagnosis* | | | .001 |
Never had one | 22 (5.5) | 2 (1.5) | |
<1 year | 81 (20.1) | 35 (25.9) | |
1–2 years | 228 (56.4) | 89 (65.9) | |
>2 years | 73 (18.1) | 9 (6.7) | |
Time since the CBE before the one associated with the cancer diagnosis* | | | .77 |
Never had one | 4 (1.5) | 2 (3.1) | |
<1 year | 200 (76.1) | 48 (73.9) | |
1–2 years | 47 (17.9) | 13 (20.0) | |
>2 years | 12 (4.6) | 2 (3.1) | |