| 组别 | 风险等级 | OR值 | 95% CI | P值 | |
| 非极高危(n, %) | 极高危(n, %) | ||||
| 病例组(n = 102) | 2 (1.9%) | 71 (98.1%) | 18.000 | 2.461~118.845 | <0.001 |
| 对照组(n = 72) | 17 (23.6%) | 55 (76.4) | - | - | - |