Table 5.
Recovery from disability trends using scaled erythrocytes and hemoglobin.
| Predictors | Baseline ODI | 17-month ODI | 17-month success % |
|---|---|---|---|
| RBCs (10 6 /μl) | |||
| <4 (n = 63) | 55.48 ± 16.41 (24.00; 100.00) | 32.54 ± 21.67 (00.00; 86.00) | 58.73% |
| 4–4.49 (n = 327) | 48.45 ± 15.85 (14.00; 95.00) | 25.47 ± 20.38 (00.00; 93.00) | 70.64% |
| 4.5–4.49 (n = 606) | 46.04 ± 15.76 (13.00; 95.00) | 21.83 ± 19.20 (00.00; 86.00) | 73.93% |
| 5–5.49 (n = 300) | 45.68 ± 17.00 (13.00; 96.00) | 19.52 ± 19.07 (00.00; 97.00) | 77.33% |
| ≥5.50 (n = 96) | 44.33 ± 18.15 (14.00; 95.00) | 18.95 ± 20.65 (00.00; 86.00) | 77.08% |
| Hb (g/dl) | |||
| <12 (n = 87) | 54.83 ± 14.82 (20.00; 84.00) | 33.01 ± 23.78 (00.00; 86.00) | 58.62% |
| 12–12.9 (n = 195) | 50.08 ± 16.57 (14.00; 100.00) | 26.64 ± 19.92 (00.00; 93.00) | 67.18% |
| 13–13.9 (n = 373) | 47.41 ± 15.22 (14.00; 95.00) | 23.39 ± 19.00 (00.00; 80.00) | 73.73% |
| 14–14.9 (n = 380) | 44.68 ± 15.69 (13.00; 91.00) | 19.36 ± 18.88 (00.00; 97.00) | 77.63% |
| 15–15.9 (n = 237) | 44.45 ± 16.83 (14.00; 88.00) | 20.23 ± 19.31 (00.00; 90.00) | 75.95% |
| ≥16 (n = 120) | 45.57 ± 19.38 (14.00; 96.00) | 19.53 ± 20.29 (00.00; 78.00) | 75.00% |
ODI, Oswestry Disability Index, ranging from 0 (no disability) to 100 (maximum disability); RBCs, red blood cells; Hb, hemoglobin. Clinical success, a 30% decrease from preoperative ODI at 17 months after surgery.