Table 2 Hazard ratios (95% CI) of colon, rectal, and colorectal cancers by physical activity level at baseline (n = 79,184) in the NOWAC Study

Cancer

Models

1–2

3–4

5–6

7–8

9–10

p trend

 Colon

Age-adjusted

N of cases: 885

0.98 (0.72–1.33)

45

0.94 (0.80–1.12)

203

1.00

393

0.97 (0.82–1.15)

208

0.79 (0.56–1.11)

36

0.30

Multivariable 1

N of cases: 885

0.91 (0.67–1.24)

45

0.92 (0.77–1.09)

203

1.00

393

1.00 (0.84–1.18)

208

0.79 (0.56–1.12)

36

0.63

Multivariable 2

N of cases: 885

0.90 (0.66–1.23)

45

0.91 (0.77–1.08)

203

1.00

393

1.00 (0.85–1.19)

208

0.80 (0.56–1.12)

36

0.76

 Rectal

Age-adjusted

N of cases: 426

1.22 (0.80–1.87)

24

1.09 (0.85–1.39)

100

1.00

175

1.01 (0.79–1.29)

99

1.37 (0.92–2.04)

28

0.87

Multivariable 1

N of cases: 426

1.21 (0.78–1.86)

24

1.08 (0.84–1.39)

100

1.00

175

1.02 (0.79–1.30)

99

1.37 (0.92–2.05)

28

0.95

Multivariable 2

N of cases: 426

1.18 (0.77–1.82)

24

1.07 (0.83–1.37)

100

1.00

175

1.03 (0.80–1.32)

99

1.40 (0.94–2.10)

28

0.87

 Colorectal

Age-adjusted

N of cases: 1311

1.05 (0.82–1.35)

69

0.99 (0.86–1.13)

303

1.00

568

0.98 (0.86–1.13)

307

0.97 (0.75–1.26)

64

0.34

Multivariable 1

N of cases: 1311

1.00 (0.77–1.28)

69

0.97 (0.84–1.11)

303

1.00

568

1.00 (0.87–1.15)

307

0.97 (0.75–1.26)

64

0.67

Multivariable 2

N of cases: 1311

0.98 (0.76–1.26)

69

0.96 (0.83–1.10)

303

1.00

568

1.01 (0.88–1.16)

307

0.98 (0.76–1.28)

64

0.88