Table 4 Demands of the work and work ability (according to WAI - questionnaire) in respect to the ROS
|  | Total sample (n = 401) | 1-week ROS (n = 49) | 4-month ROS (n = 352) | p |
|---|---|---|---|---|
Demands of the work, n (%) | ||||
 Psychological | 320 (79.8%) | 27 (55.1%) | 293 (83.2%) | < 0.0012 |
 Physical | 0 | 0 | 0 |  |
 Physical and psychological | 81 (20.2%) | 22 (44.9%) | 59 (16.8%) |  |
Current work ability compared to highest work ability ever scored, score (SD) (from 0 (completely unable to work) to 10 (work ability at its best)) | 7.8 (1.6) | 8.0 (1.1) | 7.8 (1.7) | 0.3371 |
Current work ability with respect to | ||||
 Physical demands of the work |  |  |  | 0.6882 |
  Rather good / very good | 299 (74.5%) | 38 (77.6%) | 261 (74.2%) |  |
  Moderate | 85 (21.2%) | 9 (18.3%) | 76 (21.5%) |  |
  Rather poor / very poor | 17 (4.3%) | 2 (4.1%) | 15 (4.3%) |  |
 Mental demands of the work |  |  |  | 0.8662 |
  Rather good / very good | 343 (85.5%) | 43 (87.8%) | 300 (85.2%) |  |
  Moderate | 50 (12.5%) | 6 (12.2%) | 44 (12.5%) |  |
  Rather poor / very poor | 8 (2.0%) | 0 | 8 (1.7%) |  |