Frequency | Group | ABG after surgery | Z value | P |
250Hz | PTTC | 15(15~20) | -2.277 | .023 |
FTTC | 15(10~20) | |||
500Hz | PTTC | 15(10~15) | -.133 | .894 |
FTTC | 15(10~20) | |||
1000Hz | PTTC | 10(10~15) | -.952 | .341 |
FTTC | 10(5~15) | |||
2000Hz | PTTC | 10(5~10) | -1.030 | .303 |
FTTC | 5(5~10) | |||
4000Hz | PTTC | 15(8.75~20) | -.619 | .536 |
FTTC | 10(5~20) |