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Table 2 HRsa and 95% CIs of all-cause mortality according to quartiles of total physical activity and according to categories of individual activities, sleep duration, and TV watching in CRC survivors (n = 1376)

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

 

Total no. of individuals

No. of deaths

Age- & sex-adjusted HR (95% CI)

Multivariable-adjustedb HR (95% CI)

MET-hours/week of total physical activity

 Quartile 1 (0–64.5)

344

85

1.00 (Ref.)

1.00 (Ref.)

 Quartile 2 (>64.5–99.7)

344

47

0.61 (0.42–0.87)

0.65 (0.45–0.94)

 Quartile 3 (>99.7–144.9)

344

33

0.45 (0.30–0.68)

0.52 (0.34–0.79)

 Quartile 4 (>144.9)

344

35

0.51 (0.34–0.77)

0.53 (0.36–0.80)

 ptrend c

  

0.0004

0.0006

MET-hours/week of sports activities d

 0

708

150

1.00 (Ref.)

1.00 (Ref.)

  > 0–10

146

10

0.42 (0.22–0.81)

0.41 (0.22–0.80)

  > 10–20

261

25

0.56 (0.37–0.86)

0.58 (0.37–0.89)

  > 20

261

15

0.33 (0.19–0.56)

0.34 (0.20–0.59)

 ptrend c

  

<0.0001

<0.0001

MET-hours/week of cycling activities d

 0

503

102

1.00 (Ref.)

1.00 (Ref.)

  > 0–10

236

31

0.75 (0.50–1.14)

0.80 (0.52–1.22)

  > 10–20

241

27

0.71 (0.45–1.10)

0.90 (0.57–1.41)

  > 20

396

40

0.61 (0.42–0.90)

0.85 (0.57–1.27)

 ptrend c

  

0.02

0.52

MET-hours/week of walking activities d

 0–10

409

75

1.00 (Ref.)

1.00 (Ref.)

  > 10–20

386

56

0.82 (0.58–1.16)

0.83 (0.58–1.19)

  > 20–30

297

37

0.65 (0.44–0.96)

0.67 (0.45–1.00)

  > 30

284

32

0.62 (0.41–0.94)

0.65 (0.43–1.00)

 ptrend c

  

0.01

0.03

MET-hours/week of gardening activities d

 0

297

69

1.00 (Ref.)

1.00 (Ref.)

  > 0–10

358

48

0.72 (0.49–1.06)

0.81 (0.55–1.20)

  > 10–20

264

23

0.38 (0.23–0.61)

0.41 (0.25–0.68)

  > 20

457

60

0.55 (0.38–0.79)

0.62 (0.42–0.91)

 ptrend c

  

0.003

0.01

MET-hours/week of housework, home repair, and stair climbing activities d

 0–10

177

45

1.00 (Ref.)

1.00 (Ref.)

  > 10–20

221

29

0.60 (0.37–0.95)

0.65 (0.40–1.05)

  > 20–30

194

29

0.69 (0.43–1.10)

0.72 (0.45–1.17)

  > 30

784

97

0.70 (0.48–1.01)

0.83 (0.55–1.23)

 ptrend c

  

0.35

0.99

Hours of sleeping at night e

  ≤ 6

294

42

1.03 (0.72–1.45)

0.97 (0.68–1.38)

 7–8

933

132

1.00 (Ref.)

1.00 (Ref.)

  ≥ 9

149

26

1.08 (0.71–1.65)

0.99 (0.65–1.53)

 ptrend c

  

0.95

0.87

Hours of sleeping at day e

 0

607

57

1.00 (Ref.)

1.00 (Ref.)

  > 0 – <1

98

7

0.58 (0.26–1.27)

0.53 (0.24–1.17)

 1 – <2

558

94

1.19 (0.85–1.68)

1.17 (0.82–1.65)

  ≥ 2

113

42

2.63 (1.72–4.02)

2.22 (1.43–3.44)

 ptrend c

  

<0.0001

0.0004

Hours/day of watching TV f

  ≤ 2

480

55

1.00 (Ref.)

1.00 (Ref.)

  > 2 – <4

414

59

1.16 (0.80–1.68)

1.23 (0.85–1.79)

  ≥ 4

482

86

1.28 (0.91–1.80)

1.45 (1.02–2.06)

ptrend c

  

0.16

0.04

  1. Abbreviations: BMI body mass index, CRC colorectal cancer, MET metabolic equivalent of task; TV television
  2. aEstimated with Cox proportional hazards regression models
  3. bAdjusted for sex, age at physical activity assessment, BMI, survival time from CRC diagnosis until physical activity assessment, tumor location, occurrence of metastases, occurrence of other cancer, chemotherapy, smoking status, alcohol intake, (time x age), (time x BMI), and (time x metastases)
  4. cCalculated by modeling the median value of physical activities, sleeping time, or TV watching categories as a continuous variable
  5. dmultivariable-adjusted models mutually adjusted for ‘cycling’, ‘sports’, ‘walking’, ‘gardening’, and ‘housework, home repair, and stair climbing’
  6. emultivariable-adjusted models mutually adjusted for hours of sleeping at night and hours of sleeping at day
  7. fmultivariable-adjusted models additionally adjusted for total physical activity
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BMC Cancer

ISSN: 1471-2407

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