区段 | 低级别瘤变组 | 高级别瘤变组 | 癌变组 | H | P |
<4 | 3406 (85.4) | 275 (61.0) | 646 (59.6) | 440.33 | <0.01 |
4~8 | 299 (7.5) | 70 (15.5) | 175 (16.1) | ||
8~12 | 118 (3.0) | 34 (7.5) | 96 (8.9) | ||
12~16 | 81 (2.0) | 25 (5.5) | 67 (6.2) | ||
≥16 | 86 (2.2) | 47 (10.4) | 100 (9.2) |