Table 5. Comparisons of single port and conventional three-port video-assisted thoracoscopic surgery.
| Parameters | Single port VATS (n=11) | Conventional VATS (n=21) | P value |
|---|---|---|---|
| Median nodule size [IQR], mm | 8 [4–11] | 10 [7–15] | 0.168* |
| Median distance from pleura [IQR], mm | 4 [2–6] | 7 [2–15] | 0.074* |
| Nodule location | – | ||
| Right upper lobe | 2 | 6 | |
| Right middle lobe | 2 | 1 | |
| Right lower lobe | 3 | 8 | |
| Left upper lobe | 1 | 4 | |
| Left lower lobe | 3 | 2 | |
| Pathology | 0.019* | ||
| Primary lung cancer | 1 | 9 | |
| Metastatic lung cancer | 4 | 8 | |
| Benign lesion | 6 | 4 | |
| Re-resection due to closed RM | 0 | 1 | – |
*, Mann-Whitney U test was applied. VATS, video-assisted thoracoscopic surgery; IQR, interquartile range; RM, resection margin.