Exposure | Strata defined by leisure time physical activity prior to baseline | |||||
---|---|---|---|---|---|---|
Upper back, n = 635 | ||||||
Occupational sitting 2012 | none of the time | little/some of the time | mostly/all the time | |||
PR | 95% CI | PR | 95% CI | PR | 95% CI | |
Model 3 | ||||||
Under 5Â h/week | 1 | (Ref) | 1 | (Ref) | 1 | (Ref) |
5 to < 15 h/week | 1.24 | 0.92–1.66 | 1.11 | 0.85–1.44 | 0.70 | 0.37–1.32 |
15 to < 25 h/week | 1.25 | 0.88–1.76 | 1.28 | 0.97–1.69 | 1.07 | 0.61–1.90 |
25 to < 35 h/week | 1.20 | 0.81–1.78 | 1.14 | 0.84–1.56 | 1.03 | 0.46–2.32 |
35 or more hours/week | 1.04 | 0.72–1.52 | 0.93 | 0.66–1.30 | 0.28 | 0.04–1.96 |