Table 1.
Basic characteristics of the study participants
| Postoperative non-sepsis (n = 338279) |
Postoperative sepsis (n = 15221) |
P-value | |||
|---|---|---|---|---|---|
| Gender | <.0001 | ||||
| female | 189467 | (56.01%) | 6834 | (44.90%) | |
| male | 148812 | (43.99%) | 8387 | (55.10%) | |
| Age | <.0001 | ||||
| 18-44 years | 222761 | (65.85%) | 3752 | (24.65%) | |
| 45-64 years | 47336 | (13.99%) | 2389 | (15.70%) | |
| ≥65 years | 68182 | (20.16%) | 9080 | (59.65%) | |
| Low income | <.0001 | ||||
| Yes | 170559 | (50.42%) | 3752 | (37.07%) | |
| No | 167720 | (49.58%) | 2389 | (62.93%) | |
| Urbanization level | <.0001 | ||||
| Highly urbanized | 98837 | (29.22%) | 3851 | (25.30%) | |
| Moderate urbanization | 100507 | (29.71%) | 4331 | (28.45%) | |
| Emerging town | 59945 | (17.72%) | 2376 | (15.61%) | |
| General town | 47102 | (13.92%) | 2429 | (15.96%) | |
| Aged Township | 6507 | (1.92%) | 504 | (3.31%) | |
| Agricultural town | 12855 | (3.8%) | 936 | (6.15%) | |
| Remote township | 12526 | (3.7%) | 794 | (5.22%) | |
| Surgical procedures | |||||
| Esophageal surgery | 65 | (0.02%) | 8 | (0.05%) | <.0001 |
| Pancreatic surgery | 98 | (0.03%) | 22 | (0.14%) | <.0001 |
| Small bowel surgery | 261 | (0.08%) | 67 | (0.44%) | <.0001 |
| Gastric surgery | 911 | (0.27%) | 141 | (0.93%) | <.0001 |
| Splenic surgery | 95 | (0.03%) | 20 | (0.13%) | <.0001 |
| Gallbladder surgery | 4789 | (1.42%) | 222 | (1.46%) | 0.6620 |
| Hepatic surgery | 809 | (0.24%) | 60 | (0.39%) | 0.0002 |
| Vascular surgery | 200 | (0.06%) | 30 | (0.20%) | <.0001 |
| Colorectal surgery | 1504 | (0.44%) | 119 | (0.78%) | <.0001 |
| Thoracic surgery | 1043 | (0.31%) | 19 | (0.12%) | <.0001 |
| Cardiac surgery | 762 | (0.23%) | 51 | (0.34%) | <.0001 |
| Hernia surgery | 6432 | (1.90%) | 12 | (0.08%) | <.0001 |
| Comorbidities | |||||
| Carcinoma in situ | 2988 | (0.88%) | 150 | (0.99%) | 0.1886 |
| Diabetes | 59130 | (17.48%) | 6514 | (42.80%) | <.0001 |
| Chronic heart failure | 22580 | (6.67%) | 3824 | (25.12%) | <.0001 |
| COPD | 96522 | (28.53%) | 7760 | (50.98%) | <.0001 |
| Chronic renal disease | 11755 | (3.47%) | 2451 | (16.1%) | <.0001 |
| Chronic liver disease | 280 | (0.08%) | 28 | (0.18%) | <.0001 |
| Acute myocardial infarction | 3386 | (1.00%) | 483 | (3.17%) | <.0001 |
| Organ system dysfunction | |||||
| Respiratory | 16554 | (4.89%) | 2573 | (16.9%) | <.0001 |
| Cardiovascular | 5273 | (1.56%) | 1192 | (7.83%) | <.0001 |
| Acute renal disease | 2522 | (0.75%) | 532 | (3.50%) | <.0001 |
| Hepatic | 16086 | (4.76%) | 1282 | (8.42%) | <.0001 |
| Haematological | 2439 | (0.72%) | 351 | (2.31%) | <.0001 |
| Neurological | 380 | (0.11%) | 63 | (0.41%) | <.0001 |
| Metabolic | 278 | (0.08%) | 75 | (0.49%) | <.0001 |
Included postoperative sepsis and comparison: non postoperative sepsis.