Table 1 Demographics,operation time, pain scores,blood loss,blood loss, and cost of two groups
From: A comparison of coblation and modified monopolar tonsillectomy in adults
Coblation group (n = 326) | Monopolar group (n = 327) | t or X2 value | P value | |
|---|---|---|---|---|
Age | 29.3 ± 3.7 | 31.8 ± 2.6 | 0.546 | 0.699 |
Sex (female: male) | 129:197 | 141:186 | 0.428 | 0.400 |
Duration, years | 10.3 ± 3.1 | 11.2 ± 1.9 | 0.189 | 0.396 |
Indication (chronic tonsillitis: tonsillar hypertrophy) | 116:210 | 125:202 | 0.382 | 0.536 |
Operation time, minutes | 28.6 ± 3.3 | 17.4 ± 4.8 | 42.371 | < 0.01* |
Intraoperative estimated blood loss, ml | 8.1 ± 3.6 | 6.3 ± 2.7 | 13.491 | < 0.01* |
Postoperative pain scores | ||||
Day 1 | 4.7 ± 3.1 | 7.1 ± 2.2 | 28.132 | < 0.01* |
Day 2 | 4.1 ± 1.6 | 5.2 ± 1.7 | 4.871 | < 0.05* |
Day 3 | 3.3 ± 1.5 | 3.9 ± 1.2 | 0.327 | 0.571 |
Day 7 | 2.8 ± 1.2 | 3.0 ± 1.5 | 0.543 | 0.849 |
Primary hemorrhage, n(%) | 9 (2.8) | 5 (1.5) | 0.667 | 0.414 |
Secondary hemorrhage, n(%) | 23 (7.1) | 9 (2.8) | 5.595 | < 0.05* |
Cost of disposable equipment,US$ | 430.48 | 28.18 | 17.216 | < 0.01* |