Table 1. Patient characteristic and correlation between CRM and clinicopathological parameters.
| Variables | All | RCP | CAP | Modified criteria | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Negative | Positive | P | Negative | Positive | P | Negative | Positive | P | ||||
| Age, years | 0.822 | 0.819 | 0.843 | |||||||||
| ≤60 | 55 (49.1) | 13 (23.6) | 42 (76.4) | 44 (80.0) | 11 (20.0) | 20 (36.4) | 35 (63.6) | |||||
| >60 | 57 (50.9) | 12 (21.1) | 45 (78.9) | 44 (77.2) | 13 (22.8) | 19 (33.3) | 38 (66.7) | |||||
| Gender | 0.732 | 0.617 | 0.767 | |||||||||
| Female | 14 (12.5) | 2 (14.3) | 12 (85.7) | 11 (78.6) | 3 (21.4) | 4 (28.6) | 10 (71.4) | |||||
| Male | 98 (87.5) | 23 (23.5) | 75 (76.5) | 77 (78.6) | 21 (21.4) | 35 (35.7) | 63 (64.3) | |||||
| Location of tumor | 0.709 | 0.261 | 0.611 | |||||||||
| Upper | 16 (14.3) | 3 (18.8) | 13 (81.3) | 14 (87.5) | 2 (12.5) | 4 (25.0) | 12 (75.0) | |||||
| Middle | 63 (56.3) | 13 (20.6) | 50 (79.4) | 46 (73.0) | 17 (27.0) | 22 (34.9) | 41 (65.1) | |||||
| Lower | 33 (29.5) | 9 (27.3) | 24 (72.7) | 28 (84.8) | 5 (15.2) | 13 (39.4) | 20 (60.6) | |||||
| Tumor length, cm | 0.284 | 0.804 | 0.438 | |||||||||
| ≤3 | 35 (31.3) | 10 (28.6) | 25 (71.4) | 28 (80.0) | 7 (20.0) | 14 (40.0) | 21 (60.0) | |||||
| >3 | 77 (68.8) | 15 (19.5) | 62 (80.5) | 60 (77.9) | 17 (22.1) | 25 (32.5) | 52 (67.5) | |||||
| Differentiation | 0.461 | 0.383 | 0.701 | |||||||||
| Well | 3 (2.7) | 0 (0) | 3 (100.0) | 3 (100.0) | 0 (0) | 1 (33.3) | 2 (66.7) | |||||
| Moderate | 49 (43.8) | 13 (26.5) | 36 (73.5) | 36 (73.5) | 13 (26.5) | 15 (30.6) | 34 (69.4) | |||||
| Poorly | 60 (53.6) | 12 (20.0) | 48 (80.0) | 49 (81.7) | 11 (18.3) | 23 (38.3) | 37 (61.7) | |||||
| Operation | 0.546 | 0.631 | 0.584 | |||||||||
| Sweet | 86 (76.8) | 21 (24.4) | 65 (75.6) | 67 (77.9) | 19 (22.1) | 31 (36.0) | 55 (64.0) | |||||
| Ivor-Lewis | 16 (14.3) | 3 (18.8) | 13 (81.3) | 12 (75.0) | 4 (25.0) | 6 (37.5) | 10 (62.5) | |||||
| McKeown | 10 (8.9) | 1 (10.0) | 9 (90.0) | 9 (90.0) | 1 (10.0) | 2 (20.0) | 8 (80.0) | |||||
| Adjuvant therapy | 0.977 | 0.816 | 0.115 | |||||||||
| None | 63 (56.3) | 14 (22.2) | 49 (77.8) | 49 (77.8) | 14 (22.2) | 18 (28.6) | 45 (71.4) | |||||
| Yes | 49 (43.8) | 11 (22.4) | 38 (77.6) | 39 (79.6) | 10 (20.4) | 21 (42.9) | 28 (57.1) | |||||
CAP, College of American Pathologists; RCP, Royal College of Pathologists; Percentages are shown in parentheses.