Table 6 Comparison of the FTA among the four groups between the immediate postoperation and at the last follow-up (°, \(\overline{\text{x}}\) ± s)
BMI group | Last follow-up | Immediate postoperation | Difference between last follow-up and immediate postoperation | T value | P value |
|---|---|---|---|---|---|
< 23 | 174.3 ± 2.7 | 173.4 ± 2.4 | 0.9 ± 2.3 | 2.88 | 0.006 |
23- < 25 | 174.8 ± 3.6 | 173.6 ± 2.7 | 1.2 ± 3.1 | 3.22 | 0.002 |
25- < 30 | 174.9 ± 2.4 | 173.3 ± 1.9 | 1.8 ± 2.9 | 7.25 | <0.001 |
≥30 | 176.0 ± 2.9 | 174.2 ± 3.3 | 1.8 ± 2.7 | 4.62 | <0.001 |
F value (between groups) | 3.219 | 1.740 | |||
P value (between groups) | 0.023 | 0.159 |