Characteristics of Women With a Diagnosis of Breast Cancer (N=105,105)
| Characteristic | Value |
|---|---|
| Total ambulatory primary care physician visits, n (%) | |
| 0–1 | 21,469 (20.4) |
| 2–4 | 19,355 (18.4) |
| 5–10 | 33,364 (31.7) |
| ≥11 | 30,917 (29.4) |
| Total ambulatory non–primary care physician visits, n (%) | |
| 0–1 | 39,031 (37.1) |
| 2–4 | 23,308 (22.2) |
| 5–10 | 23,230 (22.1) |
| ≥11 | 19,536 (18.6) |
| Age at diagnosis, y (%) | |
| 67–75 | 51,290 (48.8) |
| 76–85 | 42,913 (40.83) |
| ≥86 | 10,902 (10.37) |
| Race/ethnicity, n (%) | |
| White, non-Hispanic | 90,372 (86.0) |
| Black, non-Hispanic | 6,694 (6.4) |
| Hispanic | 3,931 (3.7) |
| Asian/American Indian/Pacific Islander | 3,425 (3.3) |
| Other | 683 (0.7) |
| Marital status, n (%) | |
| Single (never married) | 7,564 (7.2) |
| Married | 43,030 (40.9) |
| Separated/divorced | 6,913 (6.6) |
| Widowed | 43,280 (41.2) |
| Unknown | 4,318 (4.1) |
| MSA of residence, n (%) | |
| Large metropolitan | 60,122 (57.2) |
| Metropolitan | 29,272 (27.9) |
| Urban | 6,360 (6.1) |
| Less urban | 7,632 (7.3) |
| Rural | 1,714 (1.6) |
| Year of diagnosis, n (%) | |
| 1994–1997 | 24,139 (23.0) |
| 1998–2000 | 23,597 (22.5) |
| 2001–2005 | 57,369 (54.6) |
| Histologic type, n (%) | |
| Ductal | 74,760 (71.1) |
| Lobular | 17,176 (16.3) |
| Ductal/lobular | 347 (0.3) |
| Favorable | 5,961 (5.7) |
| Unfavorable | 1,315 (1.3) |
| Undefined | 5,546 (5.3) |
| Estrogen receptors, n (%) | |
| Positive/borderline | 49,010 (46.6) |
| Negative | 9,147 (8.7) |
| Missing | 46,948 (44.7) |
| Progesterone receptor, n (%) | |
| Positive/borderline | 40,265 (38.3) |
| Negative | 17,027 (16.2) |
| Missing | 47,813 (45.5 |
| Tumor size, mm | |
| Mean (SD) | 20.2 (20.6) |
| Median (minimum-maximum) | 15 (0–990) |
| AJCC stage at diagnosis, n (%) | |
| 0 (in situ) | 14,568 (13.9) |
| I | 42,830 (40.8) |
| II | 27,602 (26.3) |
| III | 6,012 (5.7) |
| IV | 3,399 (3.2) |
| Unknown | 10,694 (10.2) |
| Charlson comorbidity index, n (%)a | |
| 0 | 61,466 (58.5) |
| 1 | 24,979 (23.8) |
| ≥2 | 18,660 (17.8) |
| Influenza vaccination, n (%) | |
| No | 46,673 (44.4) |
| Yes | 58,432 (55.6) |
AJCC = American Joint Commission on Cancer; MSA = metropolitan statistical area.
↵a Scored on a range from 3–35, where higher scores indicate increased morbidity.