Table 3.
Univariate comparison of characteristics between metastatic and non-metastatic nodules.
| IPN proven benign (n = 246) |
IPN proven metastases (n = 37) |
P | |||||
|---|---|---|---|---|---|---|---|
| Initial V1, median (25%-75%), (min-max) mm3 | 24.3 | (13.4–50.3) | (4.29–568) | 67.4 | (39.5–272) | (4.14–22,000) | <0.001* |
| Initial D1, median (25%-75%), (min-max) mm | 4.17 | (3.48–5.34) | (1–13.6) | 6.2 | (4.37–10.95) | (2.1–42) | <0.001* |
| %Change V2-V1/V1, median (25%-75%), (min-max) % | −7 | (−31.73–10.73) | (−100–499) | 326 | (118.67–646.37) | (40–7326) | <0.001* |
| %Increase V2-V1/V1, median (25%-75%), (min-max) % | 16 | (8.61–30.1) | (1–499) | 326 | (118.67–646.37) | (40–7326) | <0.001* |
| Distance from pleura, median(25%-75%), (min-max) mm | 2 | (0–10) | (0–56) | 7 | (3–17) | (0–38) | 0.006* |
| Solid, n (%) | 221 | (90) | 37 | (100) | 0.054♦ | ||
| GGO, n (%) | 25 | (10) | 0 | (0) | 0.054♦ | ||
| Central, n (%) | 28 | (11) | 5 | (14) | 1.000♦ | ||
| Peripheral, n (%) | 218 | (89) | 30 | (81) | 0.102♦ | ||
| Perifissural, n (%) | 41 | (17) | 4 | (11.1) | 0.475♦ | ||
| Irregular margin, n (%) | 4 | (2) | 1 | (3) | |||
*
Mann-Whitney test for continuous variables.
♦
Fisher exact test for categorical variables.