Individuals with high work strain or an active job had a lower hazard ratio of disability pension, whereas a passive job predicted a significantly higher hazard ratio.
Each 10 counts/day additional total daily physical activity was associated with reduced hazard of developing disability by 25% (HR = 0.75, 95% CI = 0.66, 0.84).
In a discrete time proportional hazards model adjusted for age, sex, and education, the hazard of developing disability was 25% less for each additional 10 counts/day of total daily physical activity (HR = 0.75, 95% CI = 0.66, 0.84).
After excluding individuals with baseline dementia (n = 40), the hazard of developing disability for each additional 10 counts/day of total daily physical activity was 0.74 (95% CI = 0.67, 0.88).
Finally, we repeated our model controlling for self-report physical activity in order to determine if greater total daily physical activity continued to be independently associated with a lower hazard of developing disability.
Models were fitted to yield hazard ratios (HR) and their 95% confidence intervals (95% CI), indicating the risk of disability retirement among those suffering from adverse working conditions.
Recommendations are given to reduce risk of disability.
We used Cox proportional hazards regression to estimate hazard ratios (HRs) of disability pension, and to investigate the associations between symptoms of anxiety and depression caseness at baseline (score on the anxiety or depression subscales of the Hospital Anxiety and Depression Scale (HADS) ≥8) and disability pension.
When we compared the severe with the mild grades of changes and adjusted for confounders by Cox analysis (table 7), the hazard of transition to disability or death was more than twofold higher for the severe Fazekas group.
Based on the current study findings, an increase in level of total daily physical activity from 2.5 × 10 counts/day to 3.0 × 10 counts/day (50th percentile) could potentially result in a 14% reduction in hazard of developing ADL disability.
