Table 8.
Adjusted models for predicting poor outcome (PGIC) at 14, 30 and 90 days follow up
| Follow up point | Variables in the equation | OR (95% CI) | Nagelkerke* | sn/sp |
|---|---|---|---|---|
|
14 days (n = 235) |
Pain for >30 days in year |
3.2 (1.9 to 5.6) |
0.26 |
90/25 |
| Pain (for every 1 point increase) |
0.8 (0.8 to 0.9) |
|
|
|
|
30 days (n = 131) |
Duration |
|
0.32 |
92/29 |
| < 1 month |
1.0 |
|
|
|
| 1–3 months |
5.6 (1.8 to 17.0) |
|
|
|
| >3 months |
2.4(1.1 to 5.5) |
|
|
|
|
90 days (n = 150) |
|
|
0.45 |
94/23 |
| Duration |
|
|
|
|
| < 1 month |
1.0 |
|
|
|
| 1–3 months |
9.3 (3.0 to 29.0) |
|
|
|
| >3 months | 3.0(1.3 to 7.0) |
* = variance explained by model; sn = sensitivity; sp = specificity; PGIC = Patient Global Impression of Change.