Table 2.
Matching characteristics of the patients.
| Variable | All Patients | Propensity-Matched Patients | ||
|---|---|---|---|---|
| RATS | VATS | RATS | VATS | |
| ECOG performance status 1,% | ||||
| Grade 0 | 31.4 | 31.3 | 31.4 | 31.3 |
| Grade 1 | 49.7 | 49.8 | 49.7 | 50.9 |
| Grade 2 | 18.9 | 18.9 | 18.9 | 17.8 |
| FEV1% of predicted, mean | 92.2 | 92.5 | 92.2 | 91.4 |
| DLCO% of predicted, mean | 76.6 | 72.7 | 76.6 | 76.2 |
| Procedure,% | ||||
| Lobectomy | 79.0 | 75.1 | 79.0 | 79.1 |
| Segmentectomy | 21.0 | 24.9 | 21.0 | 20.9 |
1 The ECOG performance status grades an individual’s performance status from 0 to 4, with higher grades indicating greater limitation in a patient’s daily living activities. ECOG, Eastern Cooperative Oncology Group; DLCO, diffusing capacity of the lungs for carbon monoxide; FEV1, forced expiratory volume in 1 s.