Table 2.
Descriptive statistics of breast cancer survivors in the WHEL cohort by quartile of Potential Renal Acid Load (PRAL) (n = 3042).
| PRAL | ||||
|---|---|---|---|---|
| 1 | 2 | 3 | 4 | |
| Age at diagnosis, mean (SD) | 52.6 (8.3) | 51.7 (8.8) | 50.5 (8.8) | 48.5 (9.0) |
| Ethnicity, N (%) | ||||
| White | 682 (89.7) | 677 (89.3) | 635 (84.6) | 587 (78.6) |
| African American | 7 (0.9) | 16 (2.1) | 20 (2.7) | 65 (8.7) |
| Hispanic | 26 (3.4) | 35 (4.6) | 45 (6.0) | 55 (7.3) |
| Other/Mixed Race | 45 (5.9) | 30 (4.0) | 51 (6.8) | 40 (5.4) |
| BMI, N (%) | 429 (56.4) | 355 (46.8) | 275 (36.6) | 243 (32.5) |
| Normal | ||||
| Overweight | 223 (29.3) | 230 (30.3) | 268 (35.7) | 211 (28.2) |
| Obese | 108 (14.2) | 173 (22.8) | 208 (27.4) | 293 (39.2) |
| Smoking Status, N (%) | 24 (3.2) | 34 (4.5) | 37 (5.0) | 40 (5.4) |
| Current | ||||
| Former | 324 (43.1) | 306 (40.6) | 314 (42.3) | 303 (41.0) |
| Never | 403 (53.7) | 413 (54.8) | 392 (52.8) | 396 (53.6) |
| METS minutes/week, N (%) | 230 (32.6) | 286 (41.6) | 313 (47.2) | 328 (51.7) |
| 0–600 | ||||
| 600–1200 | 206 (29.2) | 184 (26.8) | 185 (27.9) | 139 (21.9) |
| >1200 | 269 (38.2) | 217 (31.6) | 165 (24.8) | 168 (26.5) |
| Menopause Status, N (%) | 59 (7.8) | 74 (9.8) | 89 (11.9) | 116 (15.5) |
| Premenopausal | ||||
| Postmenopausal | 640 (84.3) | 609 (80.7) | 599 (79.8) | 546 (73.2) |
| Perimenopausal | 60 (7.9) | 72 (9.5) | 63 (8.4) | 84 (11.3) |
| Stage, N (%) | 298 (39.2) | 283 (37.3) | 289 (38.5) | 295 (39.5) |
| I | ||||
| II | 418 (55.0) | 448 (59.1) | 427 (56.9) | 406 (54.4) |
| IIIA | 44 (5.8) | 27 (3.6) | 35 (4.7) | 46 (6.2) |
| Hormone Receptor Status, N (%) | 488 (64.2) | 489 (64.5) | 480 (63.9) | 448 (60.0) |
| ER+/PR+ | ||||
| ER-/PR+ | 115 (15.1) | 92 (12.1) | 72 (9.6) | 86 (11.5) |
| ER+/PR- | 30 (3.9) | 34 (4.5) | 30 (4.0) | 34 (4.6) |
| ER-/PR- | 127 (16.7) | 143 (18.9) | 169 (22.5) | 179 (24.0) |
| Radiation, N (%) | 275 (36.2) | 292 (38.5) | 305 (40.6) | 276 (37.0) |
| No | ||||
| Yes | 485 (63.8) | 466 (61.5) | 444 (59.1) | 470 (62.9) |
| Chemotherapy, N (%) | 261 (34.3) | 237 (31.3) | 212 (28.2) | 199 (26.6) |
| No | ||||
| Yes | 499 (65.7) | 521 (68.7) | 538 (71.6) | 548 (73.4) |
BMI denotes body mass index; METS denotes metabolic equivalents in minutes per week; SD denotes standard deviation.