Table 5. Comparison of spine injury characteristics using the SF-12 PCS and its associated univariate analysis.
| Spine injury characteristics | PCS < 50 (n = 323) | PCS ≥ 50 (n = 156) | Odds ratio; 95% CI | p value |
|---|---|---|---|---|
| Neurologic status | ||||
| Intact | 304 (94.1%) | 141 (90.4%) | – | – |
| NRI only | 8 (2.5%) | 9 (5.8%) | – | – |
| SCI | 11 (3.4%) | 6 (3.8%) | – | – |
| ASIA D | 8 (2.5%) | 6 (3.8%) | – | – |
| ASIA A, B, and C | 3 (0.9%) | 0 | 3.42; 0.18–66.69 | 0.42 |
| Injury levels per patient | ||||
| 1 | 120 (37.2%) | 64 (41%) | – | – |
| 2 | 76 (23.5%) | 38 (24.4%) | – | – |
| 3 | 45 (13.9%) | 24 (15.4%) | – | – |
| 4 | 29 (9%) | 12 (7.7%) | 1.18; 0.59–2.39 | 0.64 |
| 5 or more | 53 (16.4%) | 18 (11.5%) | 1.50; 0.85–2.67 | 0.16 |
| Total injury levels | 737 | 364 | – | – |
| Spine injury by segments | ||||
| C0–C2 | 42 (5.7%) | 30 (8.2%) | – | – |
| C3–C7 | 156 (21.2%) | 79 (21.7%) | – | – |
| T1–T12 | 302 (41%) | 120 (33%) | 1.41; 1.08–1.84 | 0.01 |
| L1–L5 | 220 (29.9%) | 126 (34.6%) | – | – |
| Sacrococcygeal | 17 (2.3%) | 9 (2.5%) | – | – |
Abbreviations: ASIA, American Spinal Injury Association classification of spinal cord injury; CI, confidence interval; NRI, nerve root injury; PCS, Physical Composite Score; SCI, spinal cord injury; SF-12, Short Form 12-Questionnaire Health Survey.
Note: Variables in bold demonstrate trend toward suboptimal SF-12 PCS scores.