Table 1 Demographic data in cohorts I and II
Cohort I | Cohort II | |
|---|---|---|
Age (years) | 50.5 (33–76) | 48.8 (37–76) |
Gender (F:M) | 1:1.9 | 1:1.9 |
Length (cm) | 173 (152–190) | 175 (156–195) |
Weight (kg) | 82.2 (57–120) | 84.1 (57–128) |
ASA | 1.46 (1–2) | 1.68 (1–3) |
Follow-up (years) | 5.1 (2–10) | 5.1 (2–10) |
Preoperative pain (years) | 7.64 (1–30) | 8.79 (2–25) |
Smoking (%) | 37 | 50 |
Previous operations of the lumbar spine | 2.0 (1–15) | 0.04 (0–1) |