Table 2 The percentage of operation time of two groups
From: A comparison of coblation and modified monopolar tonsillectomy in adults
< 10 min | 11−20 min | 21−30 min | > 30 min | X 2 | P | |
|---|---|---|---|---|---|---|
Coblation group (n = 326) | 0 (0.0%) | 121 (37.1%) | 175 (53.7%) | 30 (9.2%) | 46.06 | < 0.01 |
Monopolar group (n = 327) | 45 (13.8%) | 182 (55.6%) | 87 (26.6%) | 13 (4.0%) |