Characteristic | Group RF (n = 97) | Group GDT (n = 98) | P value |
---|---|---|---|
Age, med (IQR) | 60 (55–68) | 58 (56–66) | 0.929 |
Male, n (%) | 52 (53.6) | 52 (53.1) | 0.939 |
BMI (kg·m−2), mean (SD) | 23.54 (3.40) | 23.80 (2.75) | 0.547 |
ASA | |||
 I, n (%) | 28 (28.9) | 30 (30.6) | 0.790 |
 II, n (%) | 69 (71.1) | 68 (69.4) | 0.790 |
Education, n (%) | |||
 Illiterate, n (%) | 30 (30.9) | 30 (30.6) | 0.718 |
 1–6 years of education years, n (%) | 24 (24.7) | 29 (29.5) | 0.718 |
 ≥7 years of education years, n (%) | 43 (44.3) | 39 (39.7) | 0.718 |
Baseline MMSE, med (IQR) | 29 (25–30) | 27 (25–30) | 0.348 |
Dependence on smoking, n (%) | 19 (19.5) | 18 (18.3) | 0.828 |
Alcohol abuse, n (%) | 7 (7.2) | 11 (11.2) | 0.334 |
Comorbidity, n (%) | |||
 Coronary heart disease, n (%) | 7 (7.2) | 6 (6.1) | 0.759 |
 Hypertension, n (%) | 18 (19.6) | 23 (23.4) | 0.400 |
 Diabetes mellitus, n (%) | 7 (7.2) | 7 (7.1) | 0.984 |
 Hydrothorax, n (%) | 8 (8.2) | 7 (7.1) | 0.772 |
Type of surgery | |||
 Lumbar spine stenosis surgery, n (%) | 69 (71.1) | 71 (72.4) | 0.838 |
 Thoracic spinal stenosis surgery, n (%) | 28 (28.9) | 27 (27.6) | 0.838 |
Number of vertebral levelsc, med (IQR) | 2 (2–3) | 2 (2–3) | 0.797 |
Preoperative waiting time (d), med (IQR) | 6 (5–8) | 6 (5–8) | 0.418 |
Preoperative hemoglobin (mg/l), mean (SD) | 130.3 (12.8) | 131.1 (17.1) | 0.710 |
Preoperative hematocrit (%), med (IQR) | 40 (37–42) | 40 (37–43) | 0.567 |
Number of patients using NSAIDs, n (%) | 11 (11.3) | 12 (14.3) | 0.538 |