Table 4.
Occupational physical activity and incident stroke (N=441) by baseline cardiovascular disease (CVD). Hazard ratios (HR) and 95% confidence intervals (CI) from fully-adjusted Cox regression models. Sister Study, 2004–2015, N=31 270.
| Occupational physical activity | Cardiovascular disease status at baseline |
|||||
|---|---|---|---|---|---|---|
| Without CVD (N=24 974) |
With CVD a (N=6076) |
|||||
| N Case/Exposed | HR b | 95% CI | N Case/Exposed | HR b | 95% CI | |
| Current job | ||||||
| Mostly sitting | 147/13 078 | 1.00 | 74/3209 | 1.00 | ||
| Sitting and standing equally | 63/5154 | 1.06 | 0.79–1.43 | 40/1232 | 1.56 | 1.06–2.31 |
| Mostly standing | 49/3751 | 1.16 | 0.84–1.60 | 18/905 | 0.95 | 0.56–1.61 |
| High intensity work | 27/1975 | 1.22 | 0.80–1.84 | 13/502 | 1.18 | 0.65–2.15 |
| Longest held job | ||||||
| Mostly sitting | 125/11 648 | 1.00 | 69/2796 | 1.00 | ||
| Sitting and standing equally | 59/5278 | 1.01 | 0.74–1.38 | 35/1308 | 1.24 | 0.82–1.88 |
| Mostly standing | 56/4444 | 1.15 | 0.84–1.58 | 24/1105 | 0.97 | 0.60–1.55 |
| High intensity work | 46/2588 | 1.65 | 1.17–2.33 | 17/639 | 1.17 | 0.68–2.03 |
a
Defined by self-reported doctor’s diagnosis of congestive heart failure, mitral valve prolapse, arrhythmia, TIA, angina, or myocardial infarction at baseline.
b
Models adjust for age, leisure-time physical activity, alcohol, smoking, body mass index, discrimination at work, night work, and rate pressure product.