GWU IBCa Cases | GWU BCa Cases | UT OCb Cases | OC Casesc BRCA | OC Casesd non-BRCA | UTb Controls | WHI BCe Cases | WHIe Controls | CGEMS BCf Cases | CGEMSf Controls | |
---|---|---|---|---|---|---|---|---|---|---|
n = 141 (%) | n = 178 (%)g | n = 260 (%) | n = 96 (%) | n = 164 (%) | n = 331 (%) | n = 465 (%)g | n = 9317 (%)g | n = 1145 (%) | n = 1142 (%) | |
Average Age at Study Entry | 50.3 | 53.8 | 59.2 | 57.9 | 60.1 | 52.2 | 67.0 | 67.0 | 65.4h | 65.6h |
Average Age at Diagnosis | 48.3 | 51.8 | 56.1 | 54.6 | 57.1 | NA | 73.6 | NA | Unavailablei | NA |
Average Body Mass Index (Kg/m2) | 28.9 | 26.5 | 24.5 | 24.3 | 24.5 | 24.9 | 30.2 | 28.8 | ||
First-Degree Breast Cancer Family History | ||||||||||
Yes | 24 (17.0) | 43 (24.4) | 63 (24.2) | 33 (34.4) | 30 (18.3) | 37 (11.2) | 74 (16.9) | 1105 (12.6) | 274 (23.9) | 204 (17.9) |
Parity (≥1 Pregnancy) | ||||||||||
Yes | 114 (80.9) | 130 (73.9) | 233 (89.6) | 89 (92.7) | 144 (87.8) | 286 (86.4) | 418 (90.1) | 8661 (93.1) | ||
Oral Contraceptive Use | ||||||||||
Yes | 113 (80.1) | 125 (71.0) | 101 (38.8) | 43 (44.8) | 58 (35.4) | 216 (65.3) | 159 (34.2) | 3089 (33.1) | ||
Regular Alcohol Use (≥1 drink per day) | ||||||||||
Yes | 30 (21.3) | 32 (18.2) | 35 (13.5) | 16 (16.7) | 19 (11.6) | 42 (12.7) | 69 (15.2) | 1184 (12.8) |