Table 2.
Patient characteristics.
| Variables | SP-RATS | TP-RATS | VATS | p-Value | ||
|---|---|---|---|---|---|---|
| (n = 11) | (n = 24) | (n = 29) | SP-RATS vs. TP-RATS | SP-RATS vs. VATS | TP-RATS vs. VATS | |
| Age (years) | 66 [52–73] | 66 [61–74] | 69 [65–76] | 0.723 | 0.110 | 0.105 |
| Sex, male | 7 (64%) | 13 (54%) | 22 (76%) | 0.721 | 0.455 | 0.097 |
| BMI (kg/m2) | 24.39 [21.30–27.67] |
24.17 [20.52–26.55] |
24.29 [21.50–26.18] |
0.715 | 0.647 | 0.952 |
| Pulmonary function | ||||||
| FEV1 (%) | 83 [76–90] | 85 [74–92] | 82 [76–88] | 0.965 | 0.681 | 0.543 |
| DLCO (%) | 80 [72–91] | 80 [73–90] | 75 [71–88] | 0.746 | 0.737 | 0.260 |
| Comorbidities, n (%) | ||||||
| HTN | 5 (45%) | 11 (46%) | 15 (52%) | 0.983 | 0.723 | 0.669 |
| DM | 3 (27%) | 9 (37%) | 6 (21%) | 0.709 | 0.686 | 0.176 |
| TB | 1 (9%) | 2 (8%) | 4 (14%) | 1.000 | 1.000 | 0.532 |
| COPD | 0 | 1 (4%) | 3 (10%) | 1.000 | 0.548 | 0.617 |
| Smoking status | 0.458 | 0.898 | 0.424 | |||
| Never | 4 (36%) | 14 (58%) | 13 (45%) | |||
| Ex | 5 (45%) | 8 (33%) | 10 (34%) | |||
| Current | 2 (18%) | 2 (8%) | 6 (21%) | |||
| Alcohol use | 1.000 | 1.000 | 0.530 | |||
| No | 6 (54%) | 12 (50%) | 17 (59%) | |||
| Yes | 5 (45%) | 12 (50%) | 12 (41%) | |||
| ASA score | 3 [2–3] | 3 [2–3] | 3 [2–3] | 0.137 | 0.611 | 0.228 |
| Tumor size on CT (cm) | 6.6 [6.1–7.5] | 6.2 [6–7] | 6.2 [5–7.5] | 0.212 | 0.187 | 0.375 |
| Tumor size on pathology (cm) | 6 [5.1–7.1] | 5.5 [5.1–6] | 6 [5.3–7.7] | 0.206 | 0.659 | 0.063 |
| Tumor location | 0.683 | 0.378 | 0.105 | |||
| RUL | 1 (9%) | 4 (17%) | 9 (31%) | |||
| RML | 0 | 1 (4%) | 0 | |||
| RLL | 4 (32%) | 13 (54%) | 8 (28%) | |||
| LUL | 3 (24%) | 4 (17%) | 4 (14%) | |||
| LLL | 2 (16%) | 2 (8%) | 8 (28%) | |||
SP-RATS, single-port robotic-assisted thoracic surgery; TP-RATS, two-port robotic-assisted thoracic surgery; VATS, video-assisted thoracic surgery; BMI, body mass index; FEV1, forced expiratory volume in 1 s; DLCO, diffusing capacity for carbon monoxide; HTN, hypertension; DM, diabetes mellitus; TB, tuberculosis; COPD, chronic obstructive pulmonary disease; CT, computed tomography. Data are expressed as number (%) and median [interquartile range].