Table 3 Sociodemographic characteristics and potential risk factors among post-menopausal participants of the MASTOS case control study
Variable | Controls (% of n = 817)a | Cases (% of n = 935)a | P-Value |
|---|---|---|---|
Education Category | Â | Â | Â |
- Primary | 395 (48.3) | 394 (42.1) | 0.044 |
- Secondary | 277 (33.9) | 334 (35.7) | Â |
- College | 77 (9.4) | 98 (10.5) | Â |
- University | 62 (7.6) | 96 (10.3) | Â |
Age at Interview | Â | Â | Â |
- < 45 years | 4 (0.5) | 57 (6.1) | < 0.001 |
- 45-54 years | 187 (22.9) | 263 (28.1) | Â |
- 55-64 years | 488 (59.7) | 383 (41.0) | Â |
- ≥ 65 | 138 (16.9) | 232 (24.8) |  |
Height | 158.7 ± 6.2 | 159.1 ± 7.1 | 0.190b |
BMI category | Â | Â | Â |
- < 20 (kg/m2) | 6 (0.7) | 20 (21.4) | 0.001 |
- 20-24.9 (kg/m2) | 190 (23.3) | 216 (23.1) | Â |
- 25-29.9 (kg/m2) | 323 (39.5) | 326 (34.9) | Â |
- ≥ 30 (kg/m2) | 201 (24.6) | 303 (32.4) |  |
Family History of BC | Â | Â | Â |
- No | 750 (91.8) | 770 (82.4) | < 0.001 |
- Yes | 66 (8.1) | 163 (17.4) | Â |
Age at Menarche | Â | Â | Â |
- ≥ 14 | 326 (39.9) | 331 (35.4) | 0.087 |
- 12-13 | 400 (49.0) | 477 (51.0) | Â |
- > 12 | 87 (10.6) | 123 (13.2) | Â |
Parity | Â | Â | Â |
- 0 | 65 (8.0) | 88 (9.4) | 0.251 |
- 1 | 56 (6.9) | 68 (7.3) | Â |
- 2 | 330 (40.4) | 403 (43.1) | Â |
- 3 or more | 366 (44.8) | 376 (40.2) | Â |
Age at FFTPc | Â | Â | Â |
- < 20 | 108 (13.2) | 92 (9.8) | 0.007 |
- 20 - < 25 | 378 (46.3) | 397 (42.5) | Â |
- 25 - < 30 | 189 (23.1) | 236 (25.2) | Â |
- ≥ 30 | 123 (15.1) | 185 (19.8) |  |
Breastfeeding | Â | Â | Â |
- Yes | 574 (70.3) | 606 (64.8) | 0.015 |
- No | 243 (29.7) | 329 (35.2) | Â |
Oral Contraceptive use | Â | Â | Â |
- No | 679 (83.1) | 758 (81.1) | 0.352 |
- Yes | 137 (16.8) | 172 (18.4) | Â |
HRT use | Â | Â | Â |
- No | 572 (70.0) | 794 (84.9) | < 0.001 |
- Yes | 238 (29.1) | 133 (14.2) | Â |
Smoking Status | Â | Â | Â |
- Never | 676 (82.7) | 747 (79.9) | 0.003 |
- Past | 53 (6.5) | 102 (10.9) | Â |
- Current | 88 (10.8) | 84 (9.0) | Â |
Exercise | Â | Â | Â |
- No exercise | 399 (48.8) | 523 (55.9) | < 0.001 |
- Up to 3 hrs/wk | 214 (26.2) | 252 (27.0) | Â |
- > 3 and ≤ 6 hrs/wk | 141 (17.3) | 127 (13.6) |  |
- > 6 hrs/wk | 63 (7.7) | 33 (3.5) | Â |
Mediterranean Diet Score - Panagiotakos | Â | Â | Â |
- ≤ 30 | 227 (27.8) | 292 (31.2) | 0.264 |
- 31-35 | 224 (27.4) | 266 (28.4) | Â |
- 36-40 | 239 (29.3) | 246 (26.3) | Â |
- > 40 | 127 (15.5) | 131 (14.0) | Â |
Mediterranean Diet Score - Martinez-Gonzalez | Â | Â | Â |
- 0-4 | 258 (31.6) | 322 (34.4) | 0.429 |
- 5-6 | 237 (29.0) | 242 (25.9) | Â |
- 6-7 | 196 (24.0) | 221 (23.6) | Â |
- 8-9 | 126 (15.4) | 150 (16.1) | Â |