Table 3.
HR and 95% CI for Joint Associations of Amount of Aerobic Exercise/Weight Lifting and Participation in Weight Lifting with Digestive System Cancers
| Aerobic Exercise/Weight Lifting (median, MET-hours/week)a
|
||||
|---|---|---|---|---|
| < 3 | 3+ | |||
|
|
||||
| Reference (1.4) | Q1 (8.9) | Q2 (22.4) | Q3 (47.5) | |
|
Participation in Weight Lifting
|
||||
| No | ||||
| No. of incident cases (person-years) | 221(102,919) | 158(76,642) | 104(52,933) | |
| Multivariableb | 0.64(0.50,0.80) | 0.59(0.46,0.76) | 0.54(0.41,0.72) | |
| Multivariable+BMI+DMc | 105(31,865) | 0.65(0.51,0.82) | 0.61(0.47,0.78) | 0.57(0.43,0.76) |
| 1 (reference) | ||||
| Yes | 1 (reference) | |||
| No. of incident cases (person-years) | 82(39,423) | 112(66,288) | 152(90,096) | |
| Multivariableb | 0.77(0.57,1.04) | 0.61(0.46,0.81) | 0.61(0.47,0.80) | |
| Multivariable+BMI+DMc | 0.79(0.59,1.07) | 0.64(0.48,0.85) | 0.65(0.50,0.85) | |
a
The cut-off for the reference group was chosen to represent the minimal among multiples of 3 MET-hours/week; non-reference group was categorized based on tertiles to balance data across joint categories, which helps obtain reliable estimates.
b
Multivariable analyses were adjusted for the same set of variables as denoted in Table 2.
c
Multivariable analyses were adjusted for the same set of variables as denoted in Table 2.