Tab 2 Intraoperative condition of patients in both groups [ cases(\(\overline{x} \pm s\))]
groups | n | Operation time (min) | Intraoperative blood loss (ml) |
|---|---|---|---|
combine group | 25 | 130 ± 65.15 | 155 ± 150.72 |
single group | 30 | 107 ± 41.46 | 162 ± 122.44 |
Statistic | t = 1.501 P = 0.139 | t = 0.169 P = 0.867 |