组别 | n | SAS | SDS |
研究组 | 50 | 49.65 ± 3.82 | 48.75 ± 3.04 |
对照组 | 50 | 59.54 ± 4.21 | 57.92 ± 4.73 |
t |
| 9.241 | 8.974 |
P |
| 0.000 | 0.000 |