| 无或无明显狭窄 < 30% | ≥30%狭窄 < 70% | 狭窄 ≥ 70% | χ2 | P |
是否迂曲 |
|
|
| 0.692 | 0.708 |
无迂曲 | 11 (16.2%) | 15 (22.1%) | 42 (61.8%) |
|
|
迂曲 | 11 (17.7%) | 17 (27.4%) | 34 (54.8%) |
|
|