Table 1.
Demographics, clinical features, and analgesics administered to the patients in the four groups
| A | B | C | D | |
|---|---|---|---|---|
| Age (y) | 74 ± 3 | 73 ± 4 | 72 ± 4 | 72 ± 5 |
| Weight (kg) | 100 ± 11 | 99 ± 10 | 101 ± 8 | 101 ± 10 |
| ASA class (I/II) | 35/30 | 34/31 | 36/29 | 35/30 |
| Hypertension or coronary heart disease (%) | 29 | 31 | 28 | 31 |
| Pulmonary disease (%) | 14 | 15 | 17 | 15 |
| Operative time (min) | 115 ± 15 | 116 ± 14 | 119 ± 13 | 120 ± 12 |
| PACU stay (min) | 30 ± 6a | 32 ± 4a | 32 ± 5a | 51 ± 9 |
| Sufentanil (μg) | 64 ± 12a | 65 ± 10a | 66 ± 9a | 98 ± 11 |
| Propofol (mg) | 1379 ± 108 | 1382 ± 105 | 1377 ± 107 | 1381 ± 108 |
| Postoperative fentanyl (g) | 651 ± 65a,b,c | 775 ± 76a,c | 911 ± 101a | 1232 ± 104 |
aCompared with group D, P = 0.041; bcompared with group B, P = 0.049; ccompared with group C, P = 0.047.