Table 2 Demographic and clinical characteristics
Before matching | After matching | |||||
|---|---|---|---|---|---|---|
AT | Control | SMD | AT | Control | SMD | |
Subjects | 170 | 1014 | 113 | 113 | ||
Age, years (range) | 79 (84–68) | 59 (73–33) | 1.17 | 77 (84–69) | 77 (84–69) | 0.00 |
Gender, male | 101 (59.4) | 573 (56.5) | 0.04 | 73 (64.6) | 73 (64.6) | 0.00 |
Type of surgery | ||||||
Gastrectomy | 1 (0.6) | 11 (1.1) | − 0.14 | 1 (0.9) | 1 (0.9) | 0.00 |
Patch repair duodenal ulcer | 5 (2.9) | 56 (5.5) | − 0.05 | 3 (2.7) | 3 (2.7) | 0.00 |
Intestinal surgery | 78 (45.9) | 252 (24.9) | − 0.13 | 60 (53.1) | 60 (53.1) | 0.00 |
Colorectal surgery | 42 (24.7) | 129 (12.7) | 0.45 | 28 (24.8) | 28 (24.8) | 0.00 |
Stoma creation | 18 (10.6) | 85 (8.4) | 0.31 | 7 (6.2) | 7 (6.2) | 0.00 |
Appendectomy | 23 (13.5) | 437 (43.1) | 0.08 | 13 (11.5) | 13 (11.5) | 0.00 |
Cholecystectomy | 3 (1.8) | 44 (4.3) | − 0.70 | 1 (0.9) | 1 (0.9) | 0.00 |
Surgical approach | ||||||
Laparotomy | 154 (90.6) | 60 (59.5) | − 0.15 | 103 (91.2) | 104 (92.0) | − 0.03 |
Laparoscopy | 16 (9.4) | 411 (40.5) | 0.77 | 10 (8.8) | 9 (8.0) | 0.03 |
Comorbidities | ||||||
Diabetes mellitus | 43 (25.3) | 87 (8.6) | 0.46 | 27 (23.9) | 21 (18.6) | 0.13 |
Renal failure | 21 (12.4) | 30 (3.0) | 0.36 | 12 (10.6) | 4 (3.5) | 0.3 |
Liver cirrhosis | 6 (3.5) | 20 (2.0) | 0.09 | 3 (2.7) | 3 (2.7) | 0.00 |
Coronary artery disease | 58 (34.1) | 9 (0.9) | 0.98 | 36 (31.9) | 2 (1.8) | 0.88 |
Atrial fibrillation | 39 (22.9) | 18 (1.8) | 0.68 | 26 (23.0) | 5 (4.4) | 0.57 |
Cerebrovascular disease | 46 (27.1) | 11 (1.1) | 0.81 | 33 (29.2) | 4 (3.5) | 0.74 |
Deep vein thrombosis | 14 (8.2) | 11 (1.1) | 0.34 | 9 (8.0) | 3 (2.7) | 0.24 |
Hypertension | 120 (70.6) | 259 (25.5) | 1.01 | 79 (69.9) | 51 (45.1) | 0.52 |
Malignancy | 63 (37.1) | 208 (20.5) | 0.37 | 35 (31.0) | 31 (27.4) | 0.08 |