Table 1. Patients parameters.
| Variables | VATS (n=38) | Open (n=91) | P# |
|---|---|---|---|
| Gender (female) | 19 (50.00%) | 46 (50.55%) | 1 |
| Age [years] | 50.50 [25-72] | 49.63 [15-76] | 0.921 |
| BMI* [range] | 24.97 [18-34] | 25.13 [18-34] | 0.444 |
| Symptoms (%) | |||
| Chest pain | 9 (23.68) | 23 (25.27) | 0.036 |
| Tachypnea | 4 (10.53) | 12 (13.19) | 0.777 |
| Cough | 7 (18.42) | 8 (8.79) | 0.123 |
| Myasthenia gravis (%) | 5 (13.16) | 14 (15.38) | 0.745 |
| Hypertension (%) | 5 (13.16) | 11 (12.09) | 0.867 |
| Diabetes mellitus (%) | 2 (5.26) | 0 (0) | 0.085 |
| Coronary heart disease (%) | 1 (2.63) | 1 (1.10) | 0.504 |
| Tumor size (cm) | 5.4 (2.5-13.0) | 6.8 (2.5-13.0) | 0.671 |
| Muller-Hermelink classification (%) | 0.673 | ||
| A | 2 (5.26) | 7 (7.69) | |
| B1 | 7 (18.42) | 19 (20.88) | |
| B2 | 11 (28.95) | 16 (17.58) | |
| B3 | 2 (5.26) | 9 (9.90) | |
| AB | 16 (42.11) | 40 (43.96) | |
| Massaoka staging (%) | 0.345 | ||
| I | 17 (44.74) | 49 (53.85) | |
| II | 21 (55.26) | 42 (46.15) |
*, BMI, body mass index; #, gender, symptoms, myasthenia gravis, hypertension and Massaoka staging were analyzed by Pearson chi-square test. Diabetes mellitus, coronary heart disease and Muller-Hermelink classification were analyzed by Fisher’s exact test. The rest of variables were done by t-test. P≤0.05 was regarded as statistic significance.