Table 1 Characteristics of patients undergoing surgery by distance categories
Characteristic | 0–50 km (n = 6994) | 51–100 km (n = 612) | 101–150 km (n = 445) | 151–200 km (n = 680) | 201–250 km (n = 261) | >250 km (n = 514) | P |
|---|---|---|---|---|---|---|---|
age (mean in years) | 52.7 | 54.7 | 54.9 | 54.5 | 55.7 | 54.6 | <0.001 |
women (%) | 59.1 | 60.1 | 52.1 | 47.2 | 43.3 | 49.0 | <0.001 |
urgent assessment (%) | 39.8 | 43.6 | 48.8 | 47.8 | 43.3 | 48.4 | <0.001 |
major surgery (%) | 61.2 | 61.8 | 62.9 | 64.1 | 65.5 | 64.2 | 0.35 |
chronic lung disease (%) | 12.2 | 14.5 | 11.7 | 13.4 | 14.2 | 11.9 | 0.46 |
diabetes mellitus(%) | 5.0 | 3.8 | 4.7 | 7.1 | 4.2 | 7.4 | 0.02 |
diabetes mellitus with complications (%) | 1.2 | 1.5 | 2.3 | 1.8 | 0.4 | 1.4 | 0.25 |
mild liver disease (%) | 0.4 | 0.5 | 0 | 0.3 | 1.9 | 0.2 | 0.003 |
moderate to severe liver disease (%) | 0.2 | 0 | 0 | 0 | 0.4 | 0.4 | 0.34 |
neoplasm (%) | 14.1 | 17.3 | 18.4 | 16.2 | 16.1 | 20.0 | <0.001 |
metastatic solid tumor (%) | 5.5 | 8.8 | 6.3 | 9.1 | 5.4 | 10.3 | <0.001 |
hemiplegia (%) | 0.7 | 0.8 | 1.1 | 0.9 | 0 | 0.6 | 0.58 |
chronic renal disease (%) | 0.5 | 0.5 | 0.5 | 1.6 | 0.4 | 0.2 | 0.008 |
dementia (%) | 0.1 | 0.3 | 0 | 0.2 | 0 | 0.2 | 0.74 |
rheumatologic disease (%) | 1.8 | 1.8 | 2.0 | 2.2 | 1.2 | 0.8 | 0.49 |
peptic ulcer disease (%) | 0.7 | 0.5 | 0.5 | 0.6 | 1.2 | 0.8 | 0.89 |
unstable angina (%) | 2.3 | 2.1 | 4.7 | 3.4 | 2.7 | 4.7 | 0.001 |
hypertension (%) | 23.0 | 25.2 | 28.3 | 28.1 | 23.4 | 24.5 | 0.009 |
congestive heart failure (%) | 2.6 | 3.8 | 3.8 | 5.4 | 5.8 | 5.6 | <0.001 |
recent myocardial infarction (%) | 1.2 | 1.5 | 1.6 | 1.6 | 2.3 | 2.1 | 0.31 |
old myocardial infarction (%) | 6.9 | 7.5 | 10.8 | 9.4 | 8.1 | 10.1 | 0.001 |
old percutaneous transluminal coronary angioplasty (%) | 2.7 | 2.6 | 2.7 | 1.2 | 1.9 | 2.9 | 0.26 |
old coronary artery bypass graft (%) | 1.8 | 1.6 | 1.6 | 2.4 | 0.8 | 1.8 | 0.70 |
cerebrovascular disease (%) | 2.5 | 2.6 | 4.9 | 3.5 | 1.5 | 4.3 | 0.005 |
peripheral vascular disease (%) | 3.4 | 3.3 | 2.9 | 4.9 | 4.6 | 4.3 | 0.26 |