Table 3 The Comparison of angular deviations between two surgery approaches (Group SG vs. FH)
Group | SG | FH | Statistical method | Difference | 95% CI | P | ||
|---|---|---|---|---|---|---|---|---|
n | Mean ± SD (°) | n | Mean ± SD (°) | |||||
SA | 30 | 2.74 ± 1.55 | 30 | 6.79 ± 2.89 | paired-samples T test | -4.05 | -5.32 ~ -2.79 | < 0.001*** |
SB | 30 | 3.05 ± 1.81 | 30 | 4.38 ± 1.73 | -1.33 | -2.35 ~ -0.31 | 0.012* | |
S | 60 | 2.89 ± 1.68 | 60 | 5.58 ± 2.66 | -2.69 | -3.56 ~ -1.83 | < 0.001*** | |
IA | 5 | 3.11 ± 1.45 | 5 | 2.55 ± 1.33 | Wilcoxon test | 0.56 | / | 0.500 |
IB | 5 | 1.66 ± 1.22 | 5 | 2.32 ± 1.09 | -0.66 | / | 0.345 | |
I | 10 | 2.38 ± 1.48 | 10 | 2.44 ± 1.15 | -0.06 | / | 0.959 | |