Table 1. Baseline Characteristics in Propensity Score–Matched Cohort (N = 186).
| Variable | No. (%) | P value | |
|---|---|---|---|
| Early surgery (n = 93) | Late surgery (n = 93) | ||
| Age, mean (SD), y | 47.8 (16.8) | 48.0 (15.5) | .94 |
| Sex | |||
| Female | 27 (29.0) | 18 (19.4) | .12 |
| Male | 66 (71.0) | 75 (80.6) | |
| Mechanism of injury | .76 | ||
| Fall | 37 (39.8) | 40 (43.0) | |
| Motor vehicle injury | 41 (44.1) | 43 (46.2) | |
| Sports injury | 6 (6.5) | 4 (4.3) | |
| Other | 9 (9.7) | 6 (6.5) | |
| AIS grade C | 20 (21.5) | 24 (25.8) | .50 |
| Neurologic level, median (IQR) | C5 (C4-C5) | C5 (C4-C5) | .86 |
| UEMS, mean (SD) | 25.2 (12.5) | 25.0 (14.0) | .90 |
| LEMS, mean (SD) | 39.5 (11.2) | 38.1 (12.2) | .40 |
| AMS, mean (SD) | 64.8 (22.2) | 63.0 (25.1) | .62 |
| Light touch score, mean (SD) | 91.9 (24.3) | 90.2 (27.1) | .67 |
| Pin prick score, mean (SD) | 86.1 (28.9) | 86.2 (28.9) | <.99 |
| Administration of steroids | 58 (62.4) | 53 (57.0) | .46 |
Abbreviations: AIS, American Spinal Injury Association Impairment Scale; AMS, American Spinal Injury Association motor score; FIM, functional independence measure; LEMS, lower extremity motor score; UEMS, upper extremity motor score.