Characteristics of the 5 global presenteeism measures.
| Global Measure | Construct | Recall Period | Reference Frame (if any) | Attribution | Anchors |
|---|---|---|---|---|---|
| WPAI18 | Productivity (additional phrasing: accomplished, kind of work, carefully as usual, amount of work) | 7 days | NA | Disease-specific (RA, PsA, AS, OA) | Condition had no effect on my work (0) – Condition completely prevented me from working (10) |
| WPS-RA19 | Productivity & interference | Last month | NA | Arthritis | No interference (0) – Complete interference (10) |
| WAI20 | Work ability | Current | Work ability at its best | NA | Completely unable to work (0) – Work ability at its best (10) |
| QQ21 | Quality and quantity | Today | Compared to normal | NA | Practically nothing (0) – Normal quantity (10) & Very poor quality (0) – very good quality (10) |
| HPQ22 | Performance | One/two yrs (question B) & 4 wks (question C) | Colleagues’ performance (question A) | NA | Worst performance (0) – Top performance (10) |
WPAI: Work Productivity and Activity Impairment Questionnaire; WPS-RA: Work Productivity Scale–Rheumatoid Arthritis; WAI: Work Ability Index; QQ: Quality and Quantity questionnaire; HPQ: World Health Organization Health and Work Performance Questionnaire; NA: not applicable; RA: rheumatoid arthritis; PsA: psoriatic arthritis; AS: ankylosing spondylitis; OA: osteoarthritis.