Table 1 Baseline characteristics of propensity score–matched patients
EOX group (n = 102) | US group (n = 102) | P | |
|---|---|---|---|
Median age, in years (IQR) | 65.6 (60.6–70.2) | 66.3 (57.3–73.7) | 0.379 |
Sex, male (%) | 54 (52.9) | 54 (52.9) | 1.000 |
Mean body mass index, in kg/m2 (± SD) | 26.3 (4.3) | 25.3 (4.5) | 0.102 |
ASA physical status, n (%) | 0.330 | ||
1 | 5 (4.9) | 10 (9.8) | |
2 | 34 (33.3) | 36 (35.3) | |
3 | 53 (52.0) | 51 (50.0) | |
4 | 10 (9.8) | 5 (4.9) | |
Comorbidities, n (%) | |||
Myocardial infarction | 5 (4.9) | 8 (7.8) | 0.390 |
Congestive heart failure | 3 (2.9) | 4 (3.9) | 1.000 |
Peripheral vascular disease | 4 (3.9) | 2 (2.0) | 0.683 |
Cerebrovascular disease | 1 (1.0) | 2 (2.0) | 1.000 |
Hemiplegia | 1 (1.0) | 2 (2.0) | 1.000 |
COPD or asthma | 10 (9.8) | 7 (6.9) | 0.447 |
Connective tissue disease | 2 (2.0) | 1 (1.0) | 1.000 |
Liver disease | |||
Mild | 2 (2.0) | 1 (1.0) | 1.000 |
Diabetes mellitus | |||
without complications | 15 (14.9) | 13 (12.7) | 0.663 |
with complications | 2 (2.0) | 0 | 0.246 |
Kidney disease (moderate/severe) | 2 (2.0) | 6 (5.9) | 0.279 |
Cancer (metastatic) | 5 (4.9) | 7 (6.9) | 0.552 |
Peptic ulcer | 12 (11.8) | 6 (5.9) | 0.139 |
Charlson comorbidity index, n (%) | |||
mild (0-2) | 58 (56.9) | 60 (58.8) | 0.777 |
moderate (3-4) | 34 (33.3) | 30 (29.4) | 0.546 |
Severe (≥ 5) | 10 (9.8) | 12 (11.8) | 0.652 |
Mean Charlson comorbidity index (± SD) | 2.8 (1.2) | 2.9 (1.4) | 0.870 |
Medication, n (%) | |||
Anticoagulant | 8 (7.8) | 2 (2.0) | 0.052 |
Corticosteroid | 6 (5.9) | 2 (2.0) | 0.279 |
Immunosuppressive | 1 (1.0) | 0 | 1.000 |
Laboratory, median (IQR) | |||
CA19 - 9 | 8.0 (3.0–15.8) | 8 (3.0–15.0) | 0.840 |
Missing no | 2 | 25 | |
CEA | 2.3 (1.4–3.4) | 1.9 (1.3–3.1) | 0.168 |
Missing no | 0 | 5 | |
Hb | 120.5 (110.0–131.3) | 132 (118.0–139.0) | < 0.001 |
Missing no | 0 | 1 | |
Alb | 37.3 (34.5–39.8) | 37.8 (34.0–40.2) | 0.599 |
Missing no | 0 | 3 | |
Creatinine | 67.5 (57.0–78.3) | 70.0 (60.5–79.0) | 0.257 |
Missing no | 0 | 1 | |
Preoperative cT (%) | |||
cT1 - 2 | 36 (35.6) | 38 (37.6) | 0.622 |
cT3 - 4 | 65 (64.4) | 61 (60.4) | |
cT undetermined | 1 (1.0) | 3 (2.0) | |
Preoperative cN (%) | |||
cN negative | 61 (59.8) | 63 (61.8) | 0.942 |
cN positive | 40 (39.2) | 38 (37.3) | |
cN undetermined | 1 (1.0) | 1 (1.0) | |