Table 2. SpO2 Measurements at Various Time Points from Pre-anesthesia to 35 min after Epidural Injection.
| Group R n = 15 | Group L n = 15 | P | |
|---|---|---|---|
| mean ± SD | mean ± SD | ||
| SpO2 Baseline | 98.00 ± 0.75 | 98.13 ± 0.91 | 0.520 |
| SpO2 1 min | 98.00 ± 0.84 | 98.26 ± 1.09 | 0.200 |
| SpO2 5 min | 98.13 ± 0.74 | 98.13 ± 0.91 | 0.840 |
| SpO2 10 min | 98.73 ± 0.88 | 97.93 ± 1.48 | 0.082 |
| SpO2 15 min | 99.06 ± 0.70 | 98.26 ± 1.03 | 0.026* |
| SpO2 20 min | 98.93 ± 0.79 | 98.86 ± 1.24 | 0.825 |
| SpO2 25 min | 98.73 ± 1.03 | 99.13 ± 1.12 | 0.173 |
| SpO2 30 min | 98.73 ± 0.96 | 99.00 ± 1.41 | 0.203 |
| SpO2 35 min | 98.53 ± 0.99 | 99.26 ± 1.09 | 0.014* |
Data values are presented as means ± SD. *Statistically significant difference between the groups (P < 0.05, Mann-Whitney U-test). R: Ropivacaine, L: Levobupivacaine.