Table 1.
Descriptive statistics of the study patients
| Variables | M-MIDLIF (n = 51) |
M-TLIF (n = 53) |
t/Z/X2 | p value |
|---|---|---|---|---|
| Unadjusted | ||||
| Age (years) | 45.94 ±11.76 | 46.38 ±13.79 | 0.173 | 0.863 |
| Gender (male/female) | 27/24 | 28/25 | 0.000 | 1.000 |
| BMI (kg/m2) | 24.42 ±5.08 | 24.33 ±4.12 | −0.410 | 0.369# |
| Follow-up time (month) | 23.47 ±3.78 | 23.30 ±4.44 | −0.483 | 0.629# |
| Level of screw instruments | ||||
| L4-5 | 17 | 31 | 6.619 | 0.10 |
| L5-S1 | 34 | 22 | 6.619 | 0.10 |
| Propensity Matched |
M-MIDLIF (n = 28) |
M-TLIF (n = 28) |
||
| Age (years) | 46.68 ± 14.84 | 50.50 ± 10.88 | −1.451 | 0.152 |
| Gender (male/female) | 12/16 | 16/12 | 1.43 | 0.285 |
| BMI (kg/m2) | 23.96 ± 6.03 | 23.39 ± 2.57 | −1.386 | 0.166 |
| Level of screw instruments | 0.072 | 0.789 | ||
| L4-5 | 13 | 14 | ||
| L5-S1 | 15 | 14 | ||
# p-value was calculated by the Mann-Whitney U test