Table 2 Association between liver dysfunction and the risk of mortality in patients receiving elective orthopedic surgery
Liver function | Total number | Number of mortality (%) | Unadjusted HR (95% CI) | Adjusted HR (95% CI) |
|---|---|---|---|---|
Elevated liver enzyme level | ||||
 No (SGOT ≤ 40) | 448,327 | 1214 (0.3) | 1.00 | 1.00 |
 Yes (SGOT > 40) | 29,197 | 194 (0.7) | 2.46 (2.11–2.86) | 1.62 (1.39–1.90) |
 40 < SGOT ≤ 80 | 24,821 | 136 (0.6) | 2.03 (1.70–2.42) | 1.41 (1.18–1.69) |
 80 < SGOT ≤ 200 | 3961 | 42 (1.1) | 3.93 (2.89–5.34) | 2.09 (1.53–2.86) |
 SGOT > 200 | 415 | 16 (3.9) | 14.51 (8.86–23.76) | 6.36 (3.84–10.53) |