组别 | 例数 | 干预前 | 干预后4个月 | t | P |
干预组 | 20 | 21.05 ± 1.70 | 23.45 ± 1.47 | 17.941 | <0.001 |
非干预组 | 20 | 20.85 ± 1.79 | 21.10 ± 1.68 | 1.422 | 0.171 |
t | - | 0.363 | 4.706 | - | - |
P | - | 0.719 | <0.001 | - | - |