Table 1.
Demographic and other baseline characteristics of the 395 NSCLC patients
| Variables | Number of patients (%) |
|---|---|
| Age (years) | |
| Median | 64.00 |
| First and third quartiles | 56.00–69.00 |
| Gender | |
| Male | 225 (56.96%) |
| Female | 170 (43.04%) |
| Histological type | |
| Adenocarcinoma | 329 (83.29%) |
| Squamous cell carcinoma | 53 (13.42%) |
| Other | 13 (3.29%) |
| TNM stage | |
| I–II | 341 (86.33%) |
| III | 54 (13.67%) |
| Anatomic location | |
| Central type | 62 (15.70%) |
| Peripheral type | 333 (84.30%) |
| LVI | |
| Yes | 38 (9.62%) |
| No | 357 (90.38%) |
| VPI | |
| Yes | 55 (13.92%) |
| No | 340 (86.08%) |
| Surgery type | |
| Sleeve lobectomy | 326 (82.53%) |
| Wedge resection | 34 (8.61%) |
| Segmentectomy resection | 25 (6.33%) |
| Pneumonectomy | 10 (2.53%) |
| Tumor size (cm) | |
| Median | 2.00 |
| The first and third quartiles | 1.50–3.00 |
| D‐D level (mg/L)† | |
| Median | 0.20 |
| First and third quartiles | 0.10–0.39 |
| FIB level (g/L)† | |
| Median | 2.75 |
| The first and third quartiles | 2.32–3.45 |
| PLT counts (×109/L)† | |
| Median | 215 |
| First and third quartiles | 174–257 |
†
Preoperative levels, missing values were imputed using Markov chain Monte Carlo. D‐D, D‐dimer; FIB, fibrinogen; LVI, lymphovascular invasion; NSCLC, non‐small cell lung cancer; PLT, platelet; TNM, tumor node metastasis; VPI, visceral pleural invasion.