Table 2. Associations between preoperative psychiatric morbidity and short-term surgery outcomes (n = 2,745).
| Short-term outcomes | Preoperative psychiatric morbidity | ||
|---|---|---|---|
| Yes | No | Relative risk (RR)* | |
| General complication within 30 days (missing = 234) | 170/715 (23.8%) | 330/1797 (18.4%) |  |
| Severe pneumonia | 52/715 (7.4%) | 95/1797 (5.3%) | |
| Sepsis | 36/715 (5.0%) | 72/1797 (4.0%) | |
| Severe cardiovascular complications | 34/715 (4.8%) | 66/1797 (3.7%) | |
| Pulmonary embolism | 13/715 (1.8%) | 21/1797 (1.2%) | |
| Other severe general complications | 73/715 (10.2%) | 147/1797 (8.2%) | |
| Surgical complication within 30 days (missing = 231) | 184/718 (25.6%) | 361/1797 (20.1%) | |
| Hemorrhage | 18/718 (2.5%) | 55/1797 (3.1%) | |
| Anastomotic leak | 54/718 (7.5%) | 102/1797 (5.7%) | |
| Abscess | 34/718 (4.7%) | 84/1797 (4.7%) | |
| Thoracic duct injury | 14/718 (2.0%) | 17/1797 (0.9%) | |
| Nerve palsy | 10/718 (1.4%) | 22/1797 (1.2%) | |
| Other severe surgical complications | 88/718 (12.3%) | 131/1797 (7.3%) | |
| Hospital stay longer than 2 weeks (missing = 230) | 385/720 (53.5%) | 846/1796 (47.1%) | |
| Death within 30 days | 28/790 (3.5%) | 42/1956 (2.1%) | |
| Death within 60 days | 48/790 (6.1%) | 78/1956 (4.0%) | |
| Death within 90 days | 72/790 (9.1%) | 116/1956 (5.9%) | |
* Relative risk was estimation by inverse probability of treatment weights (IPTW) weighted Poisson regression model, weighed by propensity score and adjusted for hospital volume (low, median, or high), preoperative chemotherapy (yes/no), preoperative radiotherapy (yes/no), operation type (curative/palliative), history of mental disorder (yes/no).