Table 2.
Patient demographics, EQ-5D, VAS leg and back, minimal dural sac area, and multilevel stenosis. Values are mean (SD)
| No. of patients | Age (years) | EQ-5D | SF-36 PF | SF-36 GH | SF-36 BP | SF-36 RP | ODI | VAS leg | VAS back | Min. area (mm2) | Multilevel (no. of pts) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sex | ||||||||||||
| Women | 56 | 73 (9) | 0.35 (0.29) | 26 (18) | 60 (20) | 27 (16) | 11 (26) | 46 (16) | 69 (26) | 53 (26) | 40 (16) | 30 |
| Men | 53 | 69 (11) | 0.47 (0.28) | 37 (22) | 60 (20) | 25 (14) | 8 (15) | 45 (14) | 66 (21) | 55 (26) | 46 (18) | 24 |
| Total | 109 | 71 (10) | 0.41 (0.29) | 31 (21) | 60 (20) | 26 (15) | 10 (22) | 46 (15) | 68 (24) | 54 (28) | 43 (17) | 56 |
| Age group | ||||||||||||
| 0–49 | 2 | 40 (8) | 0.79 (0.13) | 53 (11) | 75 (11) | 36 (7) | 25 | 38 | 72 | 41 (28) | 64 (2) | 1 |
| 50–59 | 14 | 56 (2) | 0.17 (0.18) | 29 (13) | 65 (21) | 21 (10) | 18 (36) | 51 (11) | 72 (19) | 48 (29) | 47 (17) | 7 |
| 60–69 | 21 | 65 (3) | 0.45 (0.29) | 39 (20) | 65 (16) | 26 (10) | 0 | 44 (15) | 64 (23) | 48 (29) | 44 (17) | 8 |
| 70–79 | 53 | 75 (3) | 0.44 (0.30) | 30 (21) | 56 (22) | 28 (19) | 9 (18) | 45 (18) | 67 (27) | 60 (27) | 42 (17) | 29 |
| 80–89 | 19 | 83 (3) | 0.39 (0.29) | 23 (25) | 61(15) | 24 (13) | 16 (32) | 46 (10) | 69 (21) | 48 (28) | 38 (16) | 9 |
| Preop walking distance, m | ||||||||||||
| <100 | 51 | 72 (9) | 0.31 (0.29) | 27 (23) | 62 (20) | 26 (18) | 10 (22) | 50 (18) | 67 (26) | 55 (28) | 44 (19) | 23 |
| 100–499 | 39 | 71 (9) | 0.42 (0.27) | 34 (17) | 60 (18) | 25 (13) | 10 (25) | 43 (13) | 68 (23) | 50 (29) | 41 (16) | 23 |
| 500–999 | 12 | 65 (15) | 0.66 (0.19) | 40 (17) | 60 (23) | 31 (11) | 10 (18) | 39 (12) | 69 (20) | 59 (27) | 59 (27) | 6 |
| >1000 | 3 | 73 (14) | 0.70 (0.02) | 43 (21) | 63 (15) | 31 (10) | 0 | 39 (8) | 72 (17) | 61 (11) | 45 (20) | 0 |
EQ-5D: health-related quality of life EuroQol index; PF: physical functioning; GH: general health; BP: bodily pain; RP: role physical; ODI: Oswestry disability index; VAS: visual analogue scale.