Table 1 Key characteristics of individuals (CAHRES)
From: Breast Tissue Organisation and its Association with Breast Cancer Risk
Characteristic | Cases | Controls | P value |
|---|---|---|---|
Number | 1,170 | 1,283 | |
HRT use | 2×10−9 | ||
Never | 791 (68%) | 998 (78%) | |
Past | 98 (8%) | 40 (3%) | |
Current | 281 (24%) | 245 (19%) | |
Parity and AFB | 7×10−7 | ||
Nulliparous | 157 (13%) | 129 (10%) | |
Parity ≤2 and AFB ≤25 | 349 (30%) | 354 (28%) | |
Parity ≤2 and AFB >25 | 372 (32%) | 351 (27%) | |
Parity >2 and AFB ≤25 | 214 (18%) | 351 (27%) | |
Parity >2 and AFB >25 | 78 (7%) | 98 (8%) | |
Age | 62.6 (±6.5) | 63.6 (±6.4) | 8×10−5 |
BMI | 25.2 (±3.6) | 25.0 (±3.8) | 0.26 |
PD | 18.7 (±14.6) | 14.8 (±13.2) | 4×10−12 |
\(\sqrt {\text {PD}}\) | 3.9 (±1.7) | 3.5 (±1.7) | 6×10−14 |