Tumor location | lateral lymph node metastasis | Positive rate | χ 2 | P value | |
---|---|---|---|---|---|
No | Yes | ||||
 |  |  |  | 11.423 | 0.022 |
Upper 1/3 of the lobe | 38 | 57 | 60.0% | Â | Â |
Middle 1/3 of the lobe | 34 | 20 | 37.0% | Â | Â |
Lower 1/3 of the lobe | 47 | 29 | 38.2% | Â | Â |
Isthmus | 14 | 13 | 48.1% | Â | Â |
Whole | 9 | 11 | 5.5% | Â | Â |