Table 2 Univariable analysis and multivariate regression analysis of the 221 patients with IPNs after esophagectomy
Multivariable analysis | |||
|---|---|---|---|
Variable | Univariable Analysis P | Hazard ratio | p |
Pathologic N category | < 0.001 | 0.010 | |
0 | Reference | ||
1 | 2.542 | ||
2 | 6.805 | ||
3 | 25.118 | ||
Number of IPNs | < 0.001 | < 0.001 | |
< 3 | Reference | ||
≥ 3 | 27.180 | ||
Shape of the largest IPN | < 0.001 | 0.008 | |
Round or round-like | 8.949 | ||
Others | Reference | ||
Time of detection of IPNs(year) | < 0.001 | 0.041 | |
< 1 | Reference | ||
1–2 | 4.088 | ||
> 2 | 4.388 | ||
Size of the largest IPN | < 0.001 | 0.003 | |
< 5 mm | Reference | ||
5–10 mm | 22.397 | ||
10–30 mm | 59.608 | ||
> 30 mm | 302.156 | ||
Mediastinal lymph node enlargement | < 0.001 | 0.644 | 0.586 |
Density of the largest IPN | < 0.001 | 1.975 | 0.336 |
Age | 0.487 | ||
Gender | 0.628 | ||
History of lung infection | 0.337 | ||
Surgery approach | 0.451 | ||
The range of lymph node dissection | 0.406 | ||
Pathologic T category | 0.422 | ||
Tumor differentiation | 0.056 | ||
Location of the largest IPN | 0.924 | ||
Area of the largest IPN | 0.345 | ||
Calcification of the largest IPN | 0.998 | ||