Further comparison combining the 2 arms demonstrated a higher percentage of patients with a 10-point decline in SOBQ scores with segmentectomy compared with wedge resection ( 40.5 % vs 21.9 % , P = .03 ) at 12 months , with thoracotomy versus video-assisted thoracic surgery ( VATS ) ( 38.8 % vs 20.4 % , P = .03 ) at 12 months , and T1b versus T1a tumors ( 46.9 % vs 23.5 % , P = .020 ) at 24 months .