Table 1.
Baseline characteristics by hydromorphone concentration in PCA for laparoscopic postoperative analgesia (N = 111)
| Group A(n = 39) | Group B(n = 34) | Group C(n = 38) | P-Value | |
|---|---|---|---|---|
| Female/Male | 20/19 | 14/20 | 10/28 | 0.080 |
|
Age (years) BMI (kg/m2) Operation time (min) Blood Loss (ml) |
62.4 ± 10.2 23.6 ± 3.8 217.1 ± 94.5 83.3 ± 115.8 |
58.2 ± 10.1 24.4 ± 3.4 229.5 ± 105.5 105.0 ± 120.0 |
60.9 ± 9.4 23.2 ± 3.2 206.6 ± 86.4 111.6 ± 119.1 |
0.185 0.363 0.600 0.551 |
| Types of Operation | 0.176 | |||
| Stomach | 26 | 18 | 17 | |
| Liver | 11 | 13 | 18 | |
| Pancreas | 2 | 3 | 3 | |
| In-hospital days (day) | 7.6 ± 3.3 | 8.3 ± 3.6 | 8.0 ± 3.7 | 0.675 |
| ASA classification (n) | 0.844 | |||
| I | 6 | 7 | 7 | |
| II | 33 | 27 | 31 |