Table 1.
Patient and Tumor Characteristics Before and After Propensity Score Matching
| Characteristic | Before PSM | After PSM | ||||
|---|---|---|---|---|---|---|
| PORT, n (%) | POCRT, n (%) | P value | PORT, n (%) | POCRT, n (%) | P value | |
| Age(years) | 0.025 | 0.761 | ||||
| Median (SD, min-max) | 57 (7.7, 33–74) | 57 (8.0, 33–71) | ||||
| Age ≤57 | 54 (45.0) | 82 (59.0) | 45 (51.7) | 47 (54.0) | ||
| Age >57 | 66 (55.0) | 57 (41.0) | 42 (48.3) | 40 (46.0) | ||
| Sex | 0.045 | 0.089 | ||||
| Female | 21 (17.5) | 39 (28.1) | 17 (19.5) | 9 (10.3) | ||
| Male | 99 (82.5) | 100 (71.9) | 70 (80.5) | 78 (89.7) | ||
| ECOG PS | 0.045 | 0.288 | ||||
| 0–1 | 75 (62.5) | 103 (74.1) | 63 (72.4) | 69 (79.3) | ||
| 2 | 45 (37.5) | 36 (25.9) | 24 (27.6) | 18 (20.7) | ||
| Tumor Location | 0.046 | 0.863 | ||||
| Upper-Thoracic | 31 (25.8) | 52 (37.4) | 22 (25.3) | 23 (26.4) | ||
| Middle + Lower Thoracic | 89 (74.2) | 87 (62.6) | 65 (74.7) | 64 (73.6) | ||
| Histological Differentiation | 0.048 | 0.834 | ||||
| Well differentiated | 35 (29.2) | 26 (18.7) | 14 (16.1) | 13 (14.9) | ||
| Fairly + Poorly differentiated | 85 (70.8) | 113 (81.3) | 73 (83.9) | 74 (85.1) | ||
| Depth of invasion (pT) | 0.025 | 0.520 | ||||
| pT1–2 | 38 (31.7) | 63 (45.3) | 27 (31.0) | 31 (35.6) | ||
| pT3–4 | 82 (68.3) | 76 (54.7) | 60 (69.0) | 56 (64.4) | ||
| Lymph node metastasis (pN) | 0.419 | 1.000 | ||||
| pN0 | 30 (25.0) | 41 (29.5) | 21 (24.1) | 21 (24.1) | ||
| pN+ | 90 (75.0) | 98 (70.5) | 66 (75.9) | 66 (75.9) | ||
| Clinical Stage | 0.047 | 0.273 | ||||
| Stage II | 35 (29.2) | 57 (41.0) | 29 (33.3) | 36 (41.4) | ||
| Stage III | 85 (70.8) | 82 (59.0) | 58 (66.7) | 51 (58.6) | ||