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Table 1 Characteristics of the overall sample of CRC survivors (n = 1376) and according to quartiles of total physical activity (in MET-hours/week)

From: Postdiagnostic physical activity, sleep duration, and TV watching and all-cause mortality among long-term colorectal cancer survivors: a prospective cohort study

   Quartiles of total physical activity  
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  
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
  1. Values are n (%) or median (interquartile range)
  2. Abbreviations: BMI body mass index, CRC colorectal cancer, MET metabolic equivalent of task
  3. aBased on chi-squared test for categorical variables and Wilcoxon’s rank-sum test for continuous variables