Pooled measures on the relation of physical activity to cancer mortality among cancer survivors
| Number of data sets included | HR (95% CI) | I2 (%) | p Value | |
|---|---|---|---|---|
| Overall | 57 | 0.78 (0.72 to 0.84) | 56.9 | <0.001 |
| Sex | ||||
| Female | 43 | 0.79 (0.74 to 0.84) | 37.0 | 0.009 |
| Male | 3 | 0.80 (0.57 to 1.12) | 79.2 | 0.008 |
| Study location | ||||
| North America | 45 | 0.75 (0.68 to 0.82) | 63.2 | <0.001 |
| Europe | 8 | 0.90 (0.78 to 1.02) | 0.0 | 0.679 |
| Duration of follow-up (year) | ||||
| <10 | 45 | 0.80 (0.74 to 0.87) | 51.6 | <0.001 |
| ≥10 | 11 | 0.70 (0.55 to 0.88) | 60.7 | 0.005 |
| Cancer types | ||||
| Breast cancer | 33 | 0.76 (0.70 to 0.82) | 30.2 | 0.053 |
| Colorectal cancer | 14 | 0.76 (0.64 to 0.90) | 50.7 | 0.015 |
| When physical activity was measured | ||||
| Prediagnosis | 34 | 0.86 (0.80 to 0.92) | 16.7 | 0.198 |
| Postdiagnosis | 16 | 0.60 (0.50 to 0.71) | 53.8 | 0.006 |
p Value of Q-test for heterogeneity test.