Characteristic | Cases (n = 223) | Controls (n = 417) |
---|---|---|
Age at blood collection (years) | 26.5 (17–39) | 26.5 (17–39) |
Gestational age at blood collection (days) | 72 (36–116) | 70 (37–120) |
Children at diagnosis/selection as control | ||
1 | 55 (25%) | 78 (19%) |
2 | 120 (54%) | 209 (50%) |
3 | 48 (22%) | 130 (31%) |
Number of pregnancies at blood collectiona | ||
1 | 182 (82%) | 327 (78%) |
2 | 35 (16%) | 75 (18%) |
3 | 6 (3%) | 15 (4%) |
Maternal weightb (kg) | 61 (39–89) | 60 (37–127) |
Maternal heightc (cm) | 165 (147–183) | 165 (144–180) |
Current smoker | 73 (33%) | 121 (29%) |
Child weight (g) | 3470 (2300–4680) | 3450 (2115–4770) |
Case characteristics | ||
Age at diagnosis (years) | 46.7 (25.5–63.8) | |
Lag-time (years) | 19.8 (2.7–30.5) | |
Tumor characteristics | ||
ER status | ||
Positive | 171 (77%) | |
Negative | 52 (23%) | |
PR status | ||
Positive | 157 (70%) | |
Negative | 66 (30%) | |
AR statusd | ||
Positive | 77 (84%) | |
Negative | 15 (16%) |