Table 1. Patient characteristics, operative details, and pathology†.
| Parameter | VATS (n=50) | S-VATS (n=50) | P value |
|---|---|---|---|
| Patients | |||
| Gender (male:female) | 11:39 | 15:35 | 0.36 |
| Age | 67 [60–74] | 67 [64–73] | 0.82 |
| BMI | 27 [24–30] | 27 [22–30] | 0.84 |
| Smoker | 38 [76%] | 38 (76%) | 1.00 |
| Charlson comorbidity index | 2 [1–3] | 2 [1–3] | 0.61 |
| FEV1% | 85 [69–101] | 79 [69–89] | 0.07 |
| DLCO% | 74 [63–85] | 73 [64–81] | 0.96 |
| Operative details | |||
| Laterality (right:left) | 23:27 | 26:24 | 0.55 |
| Lobectomy | 42 (84%) | 40 (80%) | 0.76 |
| RUL | 16 (32%) | 16 (32%) | |
| LUL | 11 (22%) | 13 (26%) | |
| LLL | 6 (12%) | 6 (12%) | |
| RLL | 5 (10%) | 4 (8%) | |
| Other | 4 (8%) | 1 (2%) | |
| Segmentectomy | 8 (16%) | 10 (20%) | 0.60 |
| Operative time (minutes) | 146 [121–178] | 154 [142–175] | 0.08 |
| Stapler cartridges | 8 [6–10] | 9 [8–10] | 0.58 |
| Number of chest tubes | 2 [2–2] | 1 [1–1] | <0.01 |
| Conversion to open | 1 (2%) | 2 (4%) | 0.56 |
| Pathology | |||
| Tumor size (cm) | 2.8 [1.8–3.8] | 2.5 [1.6–3.5] | 0.33 |
| Number of lymph nodes | 7 [4–10] | 7 [4–10] | 0.93 |
| R0 resection | 50 (100%) | 50 (100%) | 1.00 |
| TNM stage (primary lung cancer) | |||
| I | 40 (80%) | 38 (76%) | 0.33 |
| II | 5 (10%) | 10 (20%) | |
| III | 1 (2%) | 0 (0%) | |
†, All values reported are medians with interquartile range in parentheses unless otherwise specified; FEV1%, percent predicted forced expiratory volume in 1 second; DLCO%, percent predicted diffusion capacity for carbon monoxide.