Table 3.
Results of univariate and multivariable logistic regressions to predict chronic pain (pain intensity ≥4) at the 3-month follow-up
| Baseline characteristics | Unadjusted OR (95% CI) | Adjusted OR* (95% CI) | Adjusted OR† (95% CI) |
| Age | 1.00 (0.97 to 1.02) | 0.99 (0.96 to 1.01) | 0.99 (0.97 to 1.02) |
| Sex (female) | 1.40 (0.69 to 2.86) | 1.52 (0.71 to 3.25) | 1.54 (0.71 to 3.34) |
| Type of pain condition‡ | |||
| Fracture | 2.51 (0.63 to 10.0) | 2.08 (0.48 to 8.93) | 1.91 (0.43 to 8.50) |
| Back/neck pain | 3.39 (0.91 to 12.6) | 3.32 (0.84 to 13.0) | 3.03 (0.76 to 12.1) |
| Other musculoskeletal pain | 3.08 (0.85 to 11.6) | 3.33 (0.85 to 13.1) | 3.62 (0.91 to 14.5) |
| Other pain§ | Reference | Reference | Reference |
| Patients having severe-moderate or severe-severe acute pain trajectories | 4.69 (2.11 to 10.5) | 5.14 (2.23 to 11.8) | |
| Patients having severe-severe acute pain trajectory | 7.52 (3.27 to 17.3) | 8.24 (3.39 to 20.0) |
ORs in bold are significant at p<0.001.
*Adjusted for all predictive variables including severe-moderate or severe-severe acute pain trajectories.
†Adjusted for all predictive variables including severe-severe acute pain trajectory.
‡Patients with renal colic were removed since none of them developed chronic pain.
§For example, abdominal pain, abscess, burn, tooth pain.