Table 1 Characteristics of the overall sample of CRC survivors (n = 1376) and according to quartiles of total physical activity (in MET-hours/week)
| Â | Â | Quartiles of total physical activity | Â | |||
|---|---|---|---|---|---|---|
Participant characteristics | Overall sample | Q1 (0–64.5) | Q2 (>64.5–99.7) | Q3 (>99.7–144.9) | Q4 (>144.9) | p a |
Total no. of individuals, n | 1376 | 344 | 344 | 344 | 344 | Â |
No. of deaths, n (%) | 200 (15) | 85 (25) | 47 (14) | 33 (10) | 35 (10) | <0.0001 |
Sex, n (%) | ||||||
 Men | 770 (56) | 224 (65) | 200 (58) | 176 (51) | 170 (49) |  |
 Women | 606 (44) | 120 (35) | 144 (42) | 168 (49) | 174 (51) | <0.0001 |
Age at diagnosis, y | 62 (57–66) | 63 (57–70) | 62 (56–66) | 62 (57–66) | 61 (56–65) | 0.0002 |
Age at physical activity assessment, y | 69 (64–73) | 70 (65–77) | 69 (64–74) | 69 (65–73) | 68 (63–72) | 0.0006 |
Time between CRC diagnosis and physical activity assessment, y | 6 (5–8) | 6 (5–8) | 7 (5–8) | 7 (5–8) | 6 (5–8) | 0.37 |
BMI, kg/m2 | 26.2 (23.8–29.3) | 26.6 (24.0–29.4) | 26.0 (23.7–29.3) | 26.1 (23.8–29.1) | 26.0 (23.7–29.2) | 0.63 |
Smoking status, n (%) | ||||||
 Never | 556 (40) | 123 (36) | 140 (41) | 143 (42) | 150 (44) |  |
 Former | 678 (49) | 177 (51) | 171 (50) | 170 (49) | 160 (47) |  |
 Current | 121 (9) | 37 (11) | 30 (9) | 26 (8) | 28 (8) |  |
 Unknown | 21 (2) | 7 (2) | 3 (1) | 5 (1) | 6 (2) | 0.57 |
Alcohol intake, g/day | 7 (2–20) | 5 (1–20) | 8 (2–23) | 7 (3–18) | 7 (2–18) | 0.01 |
Tumor location, n (%) | ||||||
 Colon | 657 (48) | 166 (48) | 168 (49) | 170 (49) | 148 (43) |  |
 Rectum | 576 (42) | 147 (43) | 144 (42) | 137 (40) | 153 (44) |  |
 Both | 62 (5) | 13 (4) | 13 (4) | 21 (6) | 15 (4) |  |
 Unknown | 81 (6) | 18 (5) | 19 (5) | 16 (5) | 28 (8) | 0.48 |
Metastases, n (%) | ||||||
 Yes | 234 (17) | 70 (20) | 48 (14) | 54 (16) | 56 (16) |  |
 No | 908 (66) | 207 (60) | 248 (72) | 227 (66) | 226 (66) |  |
 Unknown | 234 (17) | 67 (19) | 48 (14) | 63 (18) | 62 (18) | 0.06 |
Other Cancer, n (%) | ||||||
 Yes | 292 (21) | 73 (21) | 79 (23) | 68 (20) | 72 (21) |  |
 No | 1054 (77) | 261 (76) | 260 (76) | 268 (78) | 265 (77) |  |
 Unknown | 30 (2) | 10 (3) | 5 (1) | 8 (2) | 7 (2) | 0.84 |
Therapy, n (%) | ||||||
 None | 721 (52) | 182 (53) | 191 (56) | 168 (49) | 180 (52) |  |
 Chemotherapy | 305 (22) | 85 (25) | 68 (20) | 80 (23) | 72 (21) |  |
 Radiation | 45 (3) | 6 (2) | 18 (5) | 11 (3) | 10 (3) |  |
 Chemotherapy and radiation | 282 (20) | 65 (19) | 59 (17) | 80 (23) | 78 (23) |  |
 Unknown | 23 (2) | 6 (2) | 8 (2) | 5 (1) | 4 (1) | 0.18 |