Single level group | Double level group | t | p-value | |
---|---|---|---|---|
DS (cm) | 5.84 ± 1.64 | 9.18 ± 1.78 | −13.714 | < 0.001 |
DT(d) | 85.69 ± 22.83 | 70.90 ± 13.87 | 6.267 | < 0.001 |
CT(d) | 254.34 ± 58.55 | 230.40 ± 39.52 | 2.986 | 0.003 |
EFT(d) | 385.15 ± 89.01 | 340.62 ± 52.18 | 4.941 | < 0.001 |
EFI(d/cm) | 66.54 ± 8.58 | 38.01 ± 6.52 | 23.930 | < 0.001 |