Matrix of transition probabilities for three levels of physical load among the distinguished health states for low back pain (LBP) during a one year follow up among personnel of nursing homes and homes for the elderly (n = 523)
| Baseline | Follow up | |||
|---|---|---|---|---|
| No LBP | LBP w/o sickleave | LBP with sickleave | ||
| Low physical load (L) | No LBP | 0.75 (0.04) | 0.20 (0.04) | 0.05 (0.02) |
| LBP w/o sick leave | 0.28 (0.04) | 0.63 (0.04) | 0.09 (0.02) | |
| LBP with sick leave | 0.20 (0.10) | 0.53 (0.13) | 0.27 (0.11) | |
| Intermediate physical load (I) | No LBP | 0.75 (0.05) | 0.19 (0.05) | 0.06 (0.03) |
| LBP w/o sick leave | 0.18 (0.05) | 0.64 (0.06) | 0.18 (0.05) | |
| LBP with sick leave | 0.32 (0.11) | 0.32 (0.11) | 0.37 (0.11) | |
| High physical load (H) | No LBP | 0.71 (0.07) | 0.19 (0.06) | 0.10 (0.05) |
| LBP w/o sick leave | 0.25 (0.06) | 0.50 (0.07) | 0.25 (0.06) | |
| LBP with sick leave | 0.17 (0.11) | 0.33 (0.14) | 0.50 (0.14) | |