Journal of Oncology / 2020 / Article / Tab 2 / Research Article
Comparison of Involved Field Radiotherapy versus Elective Nodal Irradiation in Stage IIIB/C Non-Small-Cell Lung Carcinoma Patients Treated with Concurrent Chemoradiotherapy: A Propensity Score Matching Study Table 2 Pretreatment and treatment characteristics for propensity score-matched patients per elective nodal irradiation status.
Covariate All patients (N = 646) ENI (N = 323) IFRT (N = 323) valueMedian age, y (range) 63 (31–79) 63 (31–79) 64 (34–78) 0.92 Age group, y (%) ≤70 years 586 (90.7) 294 (91.0) 292 (90.4) 0.86 70 years 60 (9.3) 29 (9.0) 31 (9.6) Gender (%) Male 400 (61.9) 201 (62.2) 199 (61.6) 0.81 Female 246 (38.1) 122 (37.8) 124 (38.4) KPS (%) 90–100 461 (71.4) 232 (71.8) 229 (70.9) 0.74 70–80 185 (28.6) 91 (28.2) 94 (29.1) Histology (%) AC 348 (53.9) 177 (54.8) 171 (52.9) 0.62 SCC 298 (46.1) 146 (45.2) 152 (47.1) T-stage 1-2 289 (44.8) 143 (44.3) 146 (45.2) 0.43 3-4 357 (55.2) 180 (55.7) 177 (54.8) N-stage 2 325 (50.3) 164 (50.8) 161 (49.8) 0.79 3 321 (49.7) 159 (49.2) 162 (50.2) Disease stage (%) IIIB 385 (59.6) 195 (60.4) 190 (58.8) 0.57 IIIC 261 (40.4) 128 (39.6) 133 (41.2) Chemotherapy cycles (%) 2-3 529 (81.9) 263 (81.4) 266 (82.3) 0.71 1 117 (18.1) 60 (18.6) 57 (17.7) Radiotherapy technique (%) 3D-CRT 248 (38.4) 127 (39.3) 121 (37.5) 0.69 IMRT 398 (61.6) 196 (60.7) 202 (62.5)
ENI: elective nodal irradiation; IFRT: involved-field radiotherapy; KPS: Karnofsky performance score; AC: adenocarcinoma; SCC: squamous cell cancer; T: tumor; N: node; 3D-CRT: 3-dimensional conformal radiotherapy; IMRT: intensity-modulated radiotherapy.