Table 1 Characteristics of the study population
All | With complications | Without complications | |
|---|---|---|---|
n = 204,680 | n = 76,807 | n = 127,873 | |
Age (years) | 64.8 ± 17.2 | 68.8 ± 16.0 | 62.4 ± 17.4 |
Gender (% female) | 58.8 | 58.4 | 59.0 |
Elective surgery (%) | 54.8 | 45.2 | 60.5 |
ICU admission (%) | 22.4 | 36.2 | 14.1 |
Mortality (%) | 1.9 | 4.6 | 0.2 |
Myocardial infarction (%) | 6.2 | 8.8 | 4.6 |
Congestive heart failure (%) | 7.5 | 12.3 | 4.6 |
Peripheral vascular disease (%) | 7.3 | 9.0 | 6.2 |
Cerebrovascular disease (%) | 2.0 | 3.2 | 1.4 |
Hemiplegia or paraplegia (%) | 0.4 | 0.7 | 0.2 |
Dementia (%) | 0.8 | 1.1 | 0.5 |
Chronic pulmonary disease (%) | 19.3 | 23.8 | 16.6 |
Rheumatologic disease (%) | 2.6 | 3.0 | 2.3 |
Peptic ulcer disease (%) | 1.3 | 1.9 | 0.9 |
Mild liver disease (%) | 1.0 | 1.3 | 0.8 |
Moderate or severe liver disease (%) | 0.4 | 0.6 | 0.2 |
Diabetes (%) | 19.9 | 21.1 | 19.2 |
Diabetes with complications (%) | 2.2 | 2.8 | 1.9 |
Renal disease (%) | 9.3 | 14.1 | 6.3 |
Any malignancy (%) | 22.1 | 24.1 | 20.8 |
Metastatic solid tumor (%) | 6.6 | 7.7 | 6.0 |
AIDS (%) | 0.1 | 0.1 | 0.1 |
Charlson Co-morbidity Index | 1.8 ± 2.3 | 2.2 ± 2.5 | 1.5 ± 2.2 |