|
Relative risk (RR) of pancreatic cancer in relation to physical activity in the BCDDP Follow-up Study |
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| Total Physical Activity 1 |
p-trend |
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|
|
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| MET-hours/day |
34.0–50.1 |
50.11–56.59 |
56.6–63.43 |
63.44–100.2 |
|
| Cases |
24 |
19 |
15 |
12 |
|
| Person-years |
70137 |
72150 |
71650 |
71701 |
|
| Age-adjusted RR (95% CI) |
1.00 |
0.79 (0.43, 1.44) |
0.64 (0.34, 1.23) |
0.51 (0.25, 1.02) |
0.04 |
| Multivariate RR (95% CI) 2 |
1.00 |
0.80 (0.44, 1.47) |
0.66 (0.34, 1.26) |
0.52 (0.26, 1.05) |
0.05 |
| Moderate Activity 1,3 |
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| Hours/day |
0–3.71 |
3.72–6.0 |
6.01–8.0 |
8.01–18.0 |
|
| Cases |
17 |
25 |
18 |
10 |
|
| Person-years |
71921 |
69238 |
65778 |
78703 |
|
| Age-adjusted RR (95% CI) |
1.00 |
1.73 (0.92, 3.25) |
1.32 (0.67, 2.60) |
0.56 (0.26, 1.23) |
0.14 |
| Multivariable RR (95% CI)2,4 |
1.00 |
1.79 (0.95, 3.36) |
1.36 (0.69, 2.69) |
0.57 (0.26, 1.26) |
0.16 |
| Vigorous Activity 5,6 |
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| Hours/day |
0 |
0.1–1.0 |
1.1–2.0 |
2.1–12.0 |
|
| Cases |
34 |
15 |
11 |
10 |
|
| Person-years |
108041 |
66876 |
52061 |
57661 |
|
| Age-adjusted RR (95% CI) |
1.00 |
0.88 (0.47, 1.63) |
0.83 (0.41, 1.66) |
0.65 (0.32, 1.33) |
0.23 |
| Multivariate RR (95% CI) 2,7 |
1.00 |
0.90 (0.48, 1.68) |
0.80 (0.40, 1.58) |
0.63 (0.31, 1.28) |
0.18 |
|
1 Categorized into quartiles. 2 The multivariable model is adjusted for age, body mass index, race, smoking status, history of diabetes, and height. 3 On the 1987 questionnaire, the following were provided as examples of moderate activity: light housework, vacuuming, washing clothes, painting, home repairs, lawn mowing, general gardening, raking, light sports or exercise, walking, hiking, light jogging, recreational tennis, bowling, golf, and bicycling on level ground. 4 Also adjusted for vigorous activity. 5 Vigorous physical activity: category of zero hours per day, followed by tertiles. 6 The following were listed as examples of vigorous activity on the 1987 questionnaire: heavy housework, scrubbing floors, washing windows, heavy yardwork, digging in garden, chopping wood, strenuous sports/exercise, running, fast jogging, competitive tennis, aerobics, bicycling on hills, and fast dancing. 7 Also adjusted for moderate activity. | |||||
Calton et al. BMC Cancer 2008 8:63 doi:10.1186/1471-2407-8-63 |
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