Table 1 Patients’ demographic, clinical and lifestyle characteristics collected at T0 assessment: the whole cohort and those who completed follow-up at T3
Characteristics | The whole cohort(n = 1462), n (%) | who completed follow-up at T3, (n = 1117), n (%) |
|---|---|---|
Time from diagnosis to T0 assessment, median (range), months | 3.2 (0.1–11.9) | 3.2 (0.1–11.9) |
Age at diagnosis, mean (SD), years | 51.9 (9.1) | 51.9 (8.8) |
Age group at diagnosis, years | ||
 < 40 | 150 (10.3) | 111 (9.5) |
 40–49 | 468 (32.0) | 383 (32.7) |
 50–59 | 552 (37.7) | 444 (37.9) |
 ≥60 | 292 (20.0) | 233 (19.9) |
Education level | ||
 High school or below | 1230 (84.1) | 987 (84.3) |
 College or above | 232 (15.9) | 184 (15.7) |
Marital status | ||
 Married or cohabitation | 1039 (71.1) | 840 (71.7) |
 Unmarried or divorced or widowed | 423 (28.9) | 331 (28.3) |
Family income, HKD/month | ||
 < 15,000 | 683 (46.7) | 530 (45.3) |
 15,000-30,000 | 452 (30.9) | 375 (32.0) |
 30,000-50,000 | 204 (14.0) | 174 (14.9) |
 ≥50,000 | 123 (8.4) | 92 (7.9) |
Employment status | ||
 Full time | 545 (37.3) | 433 (37.0) |
 Part time | 195 (13.3) | 146 (12.5) |
 Not working | 722 (49.4) | 592 (50.6) |
Number of comorbidities | ||
 0 | 901 (61.6) | 726 (62.0) |
 1 | 371 (25.4) | 296 (25.3) |
 ≥2 | 190 (13.0) | 149 (12.7) |
Menopausal status at T0 assessment | ||
 Pre-menopausal | 782 (53.5) | 627 (53.5) |
 Post-menopausal | 680 (46.5) | 544 (46.5) |
Parity | ||
 0 | 339 (23.2) | 281 (24.0) |
 1 | 340 (23.3) | 260 (22.2) |
 2 | 531 (36.3) | 429 (36.6) |
 ≥3 | 252 (17.2) | 201 (17.2) |
AJCC stage | ||
 0-I | 523 (35.8) | 438 (37.4) |
 II | 652 (44.6) | 529 (45.2) |
 III | 276 (18.9) | 197 (16.8) |
 Missing | 11 (0.8) | 7 (0.6) |
Histology | ||
 IDC | 1225 (83.8) | 982 (83.8) |
 ILC | 42 (2.9) | 35 (3.0) |
 DCIS | 94 (6.3) | 70 (6.0) |
 Others | 101 (6.9) | 84 (7.2) |
ER status, % | ||
 Positive | 1057 (72.3) | 870 (74.3) |
 Negative | 363 (24.8) | 272 (23.2) |
 Missing | 42 (2.9) | 29 (2.5) |
PR status, % | ||
 Positive | 810 (55.4) | 675 (57.6) |
 Negative | 605 (41.4) | 463 (39.5) |
 Missing | 47 (3.2) | 33 (2.8) |
HER 2 status, % | ||
 Positive | 381 (26.1) | 305 (26.0) |
 Negative | 966 (66.1) | 786 (67.1) |
 Missing | 115 (7.9) | 80 (6.8) |
Type of surgery | ||
 Mastectomy | 917 (62.7) | 714 (61.0) |
Conservation | 545 (37.3) | 457 (39.0) |
 Chemotherapy, % | ||
 Yes | 1100 (75.2) | 875 (74.7) |
 No | 362 (24.8) | 296 (25.3) |
Radiotherapy, % | ||
 Yes | 1032 (70.6) | 825 (70.5) |
 No | 430 (29.4) | 346 (29.5) |
Endocrine therapy, % | ||
 Yes | 1054 (72.1) | 875 (74.7) |
 No | 408 (27.9) | 296 (25.2) |
Height, median (range), cm | 156 (137–177) | 156 (137–177) |
Weight, median (range), kg | 56.0 (33.4–111.0) | 55.4 (34.3–110.0) |
BMI at diagnosis, kg/m2 | ||
 Underweight (< 18.5) | 53 (3.6) | 51 (4.4) |
 Normal (18.5–22.9) | 713 (48.8) | 540 (46.1) |
 Overweight (23–24.9) | 297 (20.3) | 251 (21.4) |
 Obese (≥25) | 399 (27.3) | 329 (28.1) |
 Waist circumference, median (range), cm | 80.3 (58.5–126.5) | 80.2 (58.5–126.5) |
 Hip circumference, median (range), cm | 95.0 (78.0–136.5) | 95.0 (78.0–135.0) |
WHR at T0 assessment | ||
 < 0.85 | 762 (52.1) | 607 (51.8) |
 ≥0.85 | 701 (47.9) | 564 (48.2) |
Sports participation 1-year before diagnosis | ||
 Never | 666 (45.6) | 530 (45.3) |
 Rarely/occasionally | 487 (33.1) | 399 (34.1) |
 Frequently | 309 (21.1) | 242 (20.7) |
Dietary energy intake 1-year before diagnosis, median (range), kcal/day | 1620.3 (551.1–5787.3) | 1616.6 (551.1–5787.3) |
Dietary carbohydrate intake1-year before diagnosis, median (range), kcal/day | 121.2 (56.9–191.2) | 121.3 (56.9–191.2) |
Dietary fat intake 1-year before diagnosis, median (range), g/1000 kcal/day | 39.1 (14.2–62.7) | 39.0 (14.2–62.7) |
Coffee intake 1-year before diagnosis, ml/week | ||
 < 200 | 991 (67.8) | 785 (67.0) |
 ≥200 | 471 (32.2) | 386 (33.0) |
Sugar-sweetened beverage intake1-year before diagnosis, ml/week | ||
 < 200 | 1178 (80.6) | 952 (81.3) |
 ≥200 | 284 (19.4) | 219 (18.7) |
Vegetables and fruits intake 1-year before diagnosis, g/day | ||
 < 400 | 496 (33.9) | 399 (34.1) |
 ≥400 | 966 (66.1) | 772 (65.9) |
Ever smoking before diagnosis | ||
 Yes | 22 (1.5) | 21 (1.8) |
 No | 1440 (98.5) | 1150 (98.2) |
Ever frequent alcohol intake before diagnosis (>  4 times/week) | ||
 Yes | 28 (1.9) | 16 (1.4) |
 No | 1434 (98.1) | 1155 (98.6) |