Table 3.
Preoperative and 1-year postoperative data regarding VAS as an estimation of back and leg pain, EuroQol and SF-36 as estimations of quality of life, and ODI as an estimation of disability. Data are mean (95% CI). Elderly is defined as those aged ≥65 years, and younger refers to the sex-matched comparison group aged 20–64
| Preoperatively |
Postoperatively |
|||||
|---|---|---|---|---|---|---|
| Elderly | Younger | p-value | Elderly | Younger | p-value | |
| VAS back pain | 53 (51–55) | 46 (45–47) | < 0.001 | 27 (26–29) | 25 (25–26) | 0.03 |
| VAS leg pain | 69 (67–70) | 66 (66–67) | 0.003 | 30 (28–32) | 22 (21–22) | < 0.001 |
| EuroQol-index | 0.29 (0.27–0.31) | 0.26 (0.25–0.27) | 0.02 | 0.69 (0.68–0.71) | 0.70 (0.70–0.71) | 0.4 |
| EuroQol-VAS | 47 (46–49) | 45 (44–45) | 0.006 | 68 (67–69) | 71 (70–71) | < 0.001 |
| SF-36 | ||||||
| PF | 31 (30–33) | 39 (38–39) | < 0.001 | 60 (58–61) | 74 (74–74) | < 0.001 |
| RP | 6 (5–7) | 9 (8–9) | < 0.001 | 46 (43–48) | 58 (58–59) | < 0.001 |
| BP | 22 (21–23) | 22 (22–22) | 0.5 | 58 (57–60) | 60 (60–61) | 0.02 |
| GH | 61 (60–62) | 67 (67–67) | < 0.001 | 62 (61–64) | 68 (68–68) | < 0.001 |
| VT | 37 (36–38) | 34 (33–34) | < 0.001 | 59 (57–60) | 57 (57–58) | 0.2 |
| SF | 48 (46–49) | 47 (46–48) | 0.6 | 78 (76–79) | 80 (79–80) | 0.02 |
| RE | 30 (27–32) | 42 (41–43) | < 0.001 | 62 (60–65) | 74 (73–75) | < 0.001 |
| MH | 61 (59–62) | 60 (59–60) | 0.1 | 75 (74–76) | 75 (74–75) | 0.6 |
| PCS | 37 (36–38) | 36 (36–37) | 0.3 | 46 (45–46) | 46 (46–46) | 0.2 |
| MCS | 28 (28–29) | 31 (31–32) | < 0.001 | 40 (39–40) | 44 (44–44) | < 0.001 |
| ODI | 50 (49–51) | 49 (48–49) | 0.005 | 24 (22–25) | 20 (20–20) | < 0.001 |
SF-36 scales: PF – physical functioning, RP – physical role functioning, BP – bodily pain, GH – general health perceptions, VT – vitality, SF – social role functioning, EM – emotional role functioning, MH – mental health, PCS – physical component summary, and MCS – mental component summary.
ODI: Oswestry disability index