Table 1. Patient characteristics of the included cohort (n=87).
| Characteristic | Values |
|---|---|
| Age (years) | 43.9 |
| Male sex | 41 (47.1) |
| Index level | |
| L3-L4 | 2 (2.3) |
| L4-L5 | 40 (46.0) |
| L5-S1 | 45 (51.7) |
| Baseline PROM values | |
| ODI | 54.1 |
| VAS leg pain | 7.5 |
| VAS back pain | 5.0 |
| Postoperative PROM change score | |
| ODI | −30.6 |
| VAS leg pain | −5.7 |
| VAS back pain | −2.5 |
| Achieved MCID in terms of ODI* | 48 (55.2) |
| Achieved MCID in terms of VAS leg pain** | 76 (87.4) |
| Achieved MCID in terms of VAS back pain** | 58 (66.7) |
| Mean TTS (weeks) | 22.5 |
Values are presented as mean or number (%) unless otherwise indicated. *, defined as a ≥30% improvement in ODI scores from baseline to the 6-week follow-up; **, defined as a ≥33% improvement in VAS leg pain and VAS back pain scores from baseline to the 6-week follow-up. ODI, Oswestry disability index; VAS, visual analogue scores; MCID, minimal clinically important difference; TTS, time to surgery.