Table 1 Selected characteristics of breast cancer patients and controls
Characteristic | Cases (n = 419) | Controls (n = 884) |
|---|---|---|
Mean age (years) | 42.9 | 42.7 |
Mean body mass index | 23.9 | 24.3 |
First-degree family history of breast cancer | 62 (14.8%) | 53 (6.0%) |
Menopausal status | ||
Premenopausal | 325 (77.6%) | 718 (81.2%) |
Postmenopausal | 25 (6.0%) | 49 (5.5%) |
Unknown | 69 (16.5%) | 117 (13.2%) |
SULT1A1 genotype | ||
*1/*1 | 198 (47.3%) | 374 (42.3%) |
*1/*2 | 169 (40.3%) | 403 (45.6%) |
*2/*2 | 52 (12.4%) | 107 (12.1%) |
NAT2 genotypea | ||
Fast acetylator | 177 (42.2%) | 351 (39.7%) |
Slow acetylator | 242 (57.8%) | 533 (60.3%) |