Determinants of absenteeism
| Study | Variable | Effect (95% CI) |
|---|---|---|
| Disease-related factors | ||
| Andersen et al20 Denmark | No knee pain | 1 |
| Knee pain 1–30 days | HR 1.23 (1.00 to 1.51) | |
| Knee pain ≥ 30 days | HR 2.04 (1.65 to 2.53) | |
| Andersen et al28 Denmark | No knee pain | 1 |
| Knee pain | HR 1.12 (0.92 to 1.37) | |
| Grotle et al7 Norway | No knee OA/no absenteeism | 1 |
| Knee OA/1–8 weeks absent | OR 2.03 (1.20 to 3.44) | |
| Knee OA/≥8 weeks absent | OR 1.95 (1.08 to 3.50) | |
| Hubertsson et al23 Sweden | No knee OA | 1 |
| Knee OA | RR 1.91 (1.84 to 1.98) | |
| Sayre et al25 Canada | Knee OA | OR 1.43 (1.02 to 2.01) |
| Morken et al 31 Norway | No knee pain often/very often Knee pain often/very often | 1 STSA: RR 1.8 (1.4 to 2.3) LTSA: RR 2.2 (1.7 to 2.9) |
| Hutchings et al 34 USA | Pain subscale score (0–20) | 2-unit decrease reduced absenteeism by 48% |
| Improvement in pain levels | Decreased the number of days missed work by 64% | |
| Individual-related factors among people with knee pain | ||
| Alexopoulos et al 27 Greece | Age ≤30 years | 1 |
| Age ≥45 years | OR 11.92 (1.44 to 98.81) | |
| Work-related factors among people with knee pain | ||
| Alexopoulos et al 27 Greece | High coworker support | 1 |
| Low coworker support | OR 3.13 (1.12 to 8.78) | |
| Alexopoulos et al 27 Greece | Low job demands | 1 |
| High job demands | OR 4.60 (1.57 to 13.50) | |
HR, hazards ratio; LTSA, long-term sickness absence; OA, osteoarthritis; OR, odds ratio; RR, relative risk; STSA, short-term sickness absence.