组别 | 例数 | Vs (cm/s) | Vd (cm/s) | PI | RI | S/D |
实验组 | 27 | 37.6 ± 5.3 | 33.1 ± 3.6 | 0.35 ± 0.03 | 0.34 ± 0.02 | 1.49 ± 0.06 |
对照组 | 27 | 33.2 ± 5.1 | 29.5 ± 3.2 | 0.51 ± 0.06 | 0.52 ± 0.04 | 1.75 ± 0.09 |
t | - | 3.108 | 3.884 | 12.394 | 20.914 | 12.190 |
P | - | 0.003 | 0.003 | 0.000 | 0.000 | 0.000 |