组别 | 例数 | 手术安全核查正确率 | 手术标识正确率 |
对照组 | 540 | 95.46% | 98.70% |
观察组 | 540 | 99.42% | 99.72% |
x2值 |
| 17.746 | 2.801 |
P值 |
| < 0.001 | 0.089 |