Table 1 Subject characteristics
From: Myocardial infarction risk and tamoxifen therapy for breast cancer
Case patients with first MI after breast cancer ( n =134) | Controls without MI ( n =262) | |
|---|---|---|
Characteristic | N (%) | N (%) |
Age at breast cancer diagnosis (years) | ||
<50 | 10 (7.5) | 16 (6.1) |
50–59 | 23 (17.2) | 48 (18.3) |
60–69 | 46 (34.3) | 91 (34.7) |
70–79 | 42 (31.3) | 86 (32.8) |
⩾80 | 13 (9.7) | 21 (8.0) |
Year of breast cancer diagnosis | ||
1980–1984 | 40 (29.9) | 75 (28.6) |
1985–1989 | 49 (36.6) | 96 (36.6) |
1990–1994 | 27 (20.2) | 59 (22.5) |
1995–1998 | 18 (13.4) | 32 (12.2) |
Years between initial breast cancer and MI diagnoses a | ||
<1 | 22 (16.4) | 42 (16.0) |
1–3 | 34 (25.4) | 69 (26.3) |
4–6 | 26 (19.4) | 52 (19.9) |
7–9 | 17 (12.7) | 32 (12.2) |
⩾10 | 35 (26.1) | 67 (25.6) |
MI classification | ||
Definite | 72 (53.7) | Not applicable |
Probable | 22 (16.4) | |
Immediate fatalityb | 40 (29.9) | |
