Characteristics of study population
| No. | % of total (n = 490) | |
|---|---|---|
| Age at diagnosis (years) | ||
| 25–39 | 42 | 8.6 |
| 40–49 | 112 | 22.9 |
| 50–59 | 148 | 30.2 |
| 60–69 | 112 | 22.9 |
| 70–85 | 76 | 15.5 |
| Menopausal status | ||
| Premenopausal | 154 | 31.4 |
| Postmenopausal | 336 | 68.6 |
| Ethnicity | ||
| White (non-Jewish) | 329 | 67.1 |
| Ashkenazi Jewish | 90 | 18.4 |
| African American | 30 | 6.1 |
| Hispanic | 17 | 3.5 |
| Asian | 17 | 3.5 |
| Unknown | 7 | 1.4 |
| Year of diagnosis | ||
| 1973–1994 | 10 | 2.0 |
| 1995–2000 | 480 | 98.0 |
| Type of surgery | ||
| Lumpectomy | 323 | 65.9 |
| Mastectomy | 167 | 34.1 |
| Histopathological diagnosis | ||
| Infiltrating ductal carcinoma | 415 | 84.7 |
| Infiltrating lobular carcinoma | 48 | 9.8 |
| Mixed carcinoma | 27 | 5.5 |
| Personal history of cancer | ||
| Bilateral invasive breast cancer | 16 | 3.3 |
| Ovarian cancer | 0 | 0 |
| Other cancer | 37 | 7.6 |
| Family history of cancer (n = 485) | ||
| Breast cancer | 199 | 41.0 |
| First degree relative | 96 | 19.8 |
| Second degree relative | 80 | 16.5 |
| Third degree relative | 23 | 4.7 |
| Male breast cancer | 5 | 1.0 |
| Ovarian cancer | 19 | 3.9 |
| Breast and ovarian cancer | 7 | 1.4 |