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Table 1 Pre-surgery measures for all patients, comparison between those with spinal stenosis and disc herniation
| All patients n = 105a | Spinal stenosis n = 61b | Disc herniation n = 30c | Spinal stenosis/Disc herniation P | ||||
|---|---|---|---|---|---|---|---|
| Age, mean (SD) | 59.8 | (12.9) | 67.6 | (7.6) | 47.7 | (11.4) | <0.001 |
| Women, n (%) | 55 | (52.4) | 32 | (52.5) | 16 | (53.3) | 0.937 |
| Pain duration back/leg > 2 years, n (%) | 55 | (52.5) | 38 | (63.3) | 8 | (30.7) | 0.003 |
| ODI, mean (SD) | 38.4 | (15.6) | 37.9 | (15.3) | 40.2 | (16.0) | 0.539 |
| VAS back pain, mean (SD) | 53.8 | (26.4) | 54.1 | (25.0) | 49.9 | (28.8) | 0.493 |
| VAS leg pain, mean (SD) | 61.2 | (25.2) | 61.9 | (22.0) | 67.4 | (24.3) | 0.298 |
| EQ-5D index, mean (SD) | 0.42 | (0.31) | 0.41 | (0.32) | 0.41 | (0.29) | 0.924 |
| EQ-VAS, mean (SD) | 50.5 | (21.8) | 51.4 | (21.6) | 50.7 | (22.0) | 0.896 |
| HADS anxiety, mean (SD) | 6.0 | (3.8) | 5.6 | (3.5) | 5.9 | (4.1) | 0.744 |
| HADS depression, mean (SD) | 4.7 | (3.3) | 4.3 | (3.1) | 4.5 | (3.5) | 0.773 |
| SES, mean (SD) | 129.8 | (40.8) | 132.5 | (40.3) | 125.1 | (44.0) | 0.451 |
| SF-36 PCS, mean (SD) | 29.4 | (9.1) | 28.5 | (9.4) | 30.3 | (8.9) | 0.417 |
| SF-36 MCS, mean (SD) | 46.4 | (12.5) | 47.9 | (11.4) | 45.5 | (15.0) | 0.419 |
| FABQ-PA, mean (SD) | 14.8 | (6.0) | 14.0 | (6.3) | 15.5 | (5.6) | 0.321 |
| Pain drawing n (%): | |||||||
| Back and/or unilateral leg pain | 41 | (39.8) | 14 | (23.35) | 19 | (65.5) | <0.001 |
| Bilateral leg pain | 43 | (41.7) | 34 | (56.7) | 6 | (20.7) | |
| Back- leg pain and other pain locations | 19 | (18.4) | 12 | (20.0) | 4 | (13.8) | |
