Indexes | Control group (n = 80) | Experiment group (n = 86) | t/χ2 | P value |
---|---|---|---|---|
Age | 58.863 ± 10.880 | 56.919 ± 11.699 | 1.106 | 0.270 |
Gender (male/female) | 35/45 | 27/59 | 2.704 | 0.100 |
BMI (kg/m2) | 24.411 ± 2.641 | 24.821 ± 2.593 | − 1.009 | 0.315 |
The level of education | 0.441 | 0.660 | ||
Primary school | 9 | 9 | ||
Junior high school | 12 | 28 | ||
Technical secondary school and high school | 25 | 35 | ||
University or college education | 34 | 14 | ||
Preoperative diagnosis | 0.024 | 0.988 | ||
Spinal canal stenosis | 56 | 61 | ||
Lumbar spondylolisthesis | 18 | 19 | ||
Lumbar disk herniation | 6 | 6 | ||
Preoperative VAS score | 5.175 ± 2.238 | 5.023 ± 2.608 | 0.401 | 0.689 |
The time of operation (min) | 94.675 ± 17.298 | 92.919 ± 16.013 | 0.679 | 0.498 |
Perioperative bleeding (mL) | 193.529 ± 58.913 | 198.666 ± 59.710 | − 0.557 | 0.578 |