TABLE 1.
Clinical characteristics of patients of the two groups
| Characteristics | ICGF‐based group (n = 100) | MID group (n = 98) | p value |
|---|---|---|---|
| Age, years, mean ± SD | 59.8 ± 10.5 | 60.6 ± 7.9 | 0.500 |
| Gender, n (%) | 0.242 | ||
| Male | 43 (43) | 48 (49) | |
| Female | 57 (57) | 50 (51) | |
| Smoking status, n (%) | 0.402 | ||
| Ever | 80 (80) | 76 (77.6) | |
| Never | 20 (20) | 22 (22.4) | |
| FEV1, L, mean ± SD | 2.5 ± 0.6 | 2.4 ± 0.7 | 0.789 |
| COPD, n (%) | 0.391 | ||
| Yes | 10 (10) | 12 (12.2) | |
| No | 90 (90) | 86 (87.8) | |
| Tumor size, cm, mean ± SD | 11.6 ± 3.9 | 11.6 ± 3.7 | 0.893 |
| Pleural adhesions, n (%) | 0.439 | ||
| Yes | 86 (86) | 12 (12.2) | |
| No | 14 (14) | 86 (87.8) | |
| Pathological diagnosis, n (%) | 0.579 | ||
| AAH | 4 (4) | 1 (1) | |
| AIS | 34 (34) | 37 (38) | |
| MIA | 52 (52) | 51 (52) | |
| IAC | 10 (10) | 9 (9) |
Abbreviations: AAH, atypical adenomatous hyperplasia; AIS, adenocarcinoma in situ; COPD, chronic obstructive pulmonary disease; FEV1, forced expiratory volume in 1 second; IAC, invasive adenocarcinoma; MIA, minimally invasive adenocarcinoma; SD, standard deviation.