Table 1 Clinical demographic data of patients
From: Comparison of extended segmentectomy with traditional segmentectomy for stage I lung cancer
iVATS extended (n = 62) | Traditional (n = 54) | P-value | ||||
|---|---|---|---|---|---|---|
N | % | N | % | |||
Gender | Male | 26 | 41.9 | 20 | 37.0 | 0.591 |
Female | 36 | 58.1 | 34 | 63.0 | ||
Age | Median (IQR) | 58.0 | (52.0–64.0) | 59.5 | (54.0–67.0) | 0.232 |
Tumor location | Right upper lobe | 28 | 45.2 | 14 | 25.9 | 0.049 |
Right middle lobe | 1 | 1.6 | 1 | 1.9 | ||
Right lower lobe | 10 | 16.1 | 10 | 18.5 | ||
Left upper lobe | 18 | 29.0 | 15 | 27.8 | ||
Left lower lobe | 5 | 8.1 | 14 | 25.9 | ||
FEV1 (%) | Median (IQR) | 93.1 | (86.1–105.0) | 89.4 | (79.5–97.3) | 0.050 |
Differentiation | Well | 22 | 35.5 | 13 | 24.5 | 0.308 |
Moderately | 39 | 62.9 | 37 | 69.8 | ||
Poor | 1 | 1.6 | 3 | 5.7 | ||
Histology | Adenocarcinoma | 62 | 100.0 | 49 | 90.7 | 0.020 |
Squamous cell carcinoma | 0 | 0.0 | 3 | 5.6 | ||
Others | 0 | 0.0 | 2 | 3.7 | ||
Pathologic T stage | Tis | 12 | 19.4 | 5 | 9.3 | 0.076 |
Tmi | 14 | 22.6 | 7 | 13.0 | ||
T1 | 36 | 58.1 | 42 | 77.8 | ||
Subtype | Lepidic | 26 | 41.9 | 18 | 34.6 | 0.424 |
Non-lepidic | 36 | 58.1 | 34 | 65.4 | ||
STAS | No | 57 | 91.9 | 48 | 88.9 | 0.576 |
Yes | 5 | 8.1 | 6 | 11.1 | ||
Pleural invasion | No | 60 | 96.8 | 50 | 92.6 | 0.415 |
Yes | 2 | 3.2 | 4 | 7.4 | ||
Lymph invasion | No | 61 | 98.4 | 48 | 88.9 | 0.049 |
Yes | 1 | 1.6 | 6 | 11.1 | ||
Enough margin | No | 15 | 24.2 | 23 | 42.6 | 0.035 |
Yes | 47 | 75.8 | 31 | 57.4 | ||