Table 2 Frequency of independent and dependent variables (%) in ICD-9 (1997–2000) and ICD-10 (2001–2004) data
Congestive Heart Failure | Diabetes | Chronic renal failure | Stroke | CABG | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
ICD-10 (% of 25969) | ICD-9 (% of 30008) | ICD-10 (% of 11918) | ICD-9 (% of 11411) | ICD-10 (% of 1770) | ICD-9 (% of 2076) | ICD-10 (% of 22947) | ICD-9 (% of 28984) | ICD-10 (% of 10214) | ICD-9 (% of 9578) | |
In-hospital Mortality | 12.4 | 11.6 | 4.2 | 3.7 | 16.8 | 13.2 | 17.0 | 15.4 | 2.9 | 3.3 |
One year Mortality | 40.1 | 39.7 | 19.0 | 17.7 | 42.0 | 34.1 | 29.2 | 26.1 | 5.1 | 5.5 |
Male | 50.2 | 51.5 | 55.9 | 54.4 | 55.0 | 56.7 | 49.6 | 50.9 | 79.7 | 78.6 |
Senior | 85.9 | 86.8 | 45.3 | 44.8 | 65.0 | 58.0 | 77.9 | 78.5 | 60.4 | 59.9 |
Charlson comorbidities | ||||||||||
Myocardial infarction | 9.6 | 15.1 | 3.6 | 4.9 | 3.6 | 5.7 | 3.4 | 5.2 | 19.3 | 36.1 |
Congestive heart failure | - | - | 8.1 | 8.2 | 18.9 | 15.1 | 4.7 | 4.3 | 19.6 | 16.0 |
Peripheral vascular disease | 2.1 | 4.9 | 11.2 | 10.2 | 3.6 | 3.3 | 1.7 | 3.8 | 5.2 | 7.4 |
Cerebrovascular disease | 2.2 | 3.6 | 2.5 | 3.8 | 2.2 | 3.0 | - | - | 5.4 | 6.8 |
Dementia | 3.8 | 2.9 | 3.4 | 2.4 | 3.2 | 1.0 | 5.6 | 3.9 | 0.5 | 0.1 |
Chronic pulmonary disease | 16.2 | 19.6 | 3.5 | 5.0 | 5.5 | 6.1 | 3.8 | 5.2 | 4.7 | 8.0 |
Rheumatic disease | 0.8 | 1.4 | 0.7 | 0.8 | 2.0 | 2.5 | 0.6 | 0.9 | 0.3 | 0.6 |
Peptic ulcer disease | 0.4 | 0.3 | 0.4 | 0.3 | 0.3 | 0.6 | 0.3 | 0.3 | 0.8 | 1.2 |
Mild liver disease | 0.8 | 1.0 | 1.2 | 1.6 | 1.7 | 1.5 | 0.3 | 0.4 | 0.2 | 0.5 |
Diabetes without chronic complication | 24.0 | 23.1 | - | - | 16.3 | 18.3 | 17.1 | 15.5 | 25.6 | 22.8 |
Diabetes with chronic complication | 4.2 | 1.8 | - | - | 6.4 | 2.7 | 1.5 | 0.8 | 5.3 | 2.8 |
Hemiplegia or paraplegia | 0.4 | 0.6 | 0.6 | 1.1 | 0.5 | 0.6 | 14.0 | 16.1 | 0.7 | 0.9 |
Renal disease | 14.2 | 10.2 | 17.2 | 14.9 | - | - | 2.6 | 1.6 | 5.9 | 3.1 |
Any malignancy | 2.4 | 2.7 | 2.0 | 1.7 | 4.7 | 3.1 | 2.1 | 2.0 | 0.9 | 1.0 |
Moderate or severe liver disease | 0.4 | 0.3 | 0.3 | 0.3 | 0.7 | 0.4 | 0.1 | 0.1 | 0.1 | 0.1 |
Metastatic solid tumor | 0.7 | 0.7 | 0.8 | 0.5 | 1.6 | 0.5 | 0.8 | 0.8 | 0.1 | 0.0 |
AIDS/HIV | 0.0 | 0.1 | 0.1 | 0.1 | 0.0 | 0.0 | 0.0 | 0.1 | 0.0 | 0.1 |
Elixhauser comorbidities | ||||||||||
Congestive heart failure | - | - | 8.1 | 8.2 | 18.9 | 15.1 | 4.7 | 4.3 | 19.6 | 16.0 |
Cardiac arrhythmia | 28.2 | 30.0 | 4.8 | 6.0 | 8.5 | 7.4 | 13.5 | 13.8 | 31.7 | 36.3 |
Valvular disease | 10.5 | 12.4 | 0.8 | 1.3 | 2.8 | 2.6 | 1.5 | 2.1 | 20.3 | 17.4 |
Pulmonary circulation disorders | 1.9 | 2.0 | 0.3 | 0.2 | 0.5 | 0.5 | 0.4 | 0.3 | 1.3 | 1.9 |
Peripheral vascular disorders | 2.1 | 4.9 | 11.2 | 10.2 | 3.6 | 3.3 | 1.7 | 3.8 | 5.2 | 7.4 |
Hypertension | 19.4 | 20.2 | 20.0 | 22.2 | 23.8 | 22.3 | 31.4 | 32.4 | 33.6 | 41.6 |
Hypertension, uncomplicated | 15.9 | 18.1 | 14.4 | 17.1 | 14.5 | 19.7 | 30.2 | 31.7 | 30.7 | 39.9 |
Hypertension, complicated | 3.5 | 2.1 | 5.6 | 5.1 | 9.3 | 2.6 | 1.2 | 0.7 | 2.9 | 1.7 |
Paralysis | 0.4 | 0.6 | 0.6 | 1.1 | 0.5 | 0.6 | 14.0 | 16.1 | 0.7 | 0.9 |
Other neurological disorders | 1.1 | 1.5 | 2.2 | 2.3 | 2.2 | 2.6 | 8.2 | 8.1 | 1.0 | 1.4 |
Chronic pulmonary disease | 16.2 | 19.6 | 3.5 | 5.0 | 5.5 | 6.1 | 3.8 | 5.2 | 4.7 | 8.0 |
Diabetes, uncomplicated | 23.3 | 22.9 | - | - | 15.7 | 18.1 | 16.8 | 15.3 | 25.4 | 22.7 |
Diabetes, complicated | 4.8 | 2.0 | - | - | 7.0 | 2.8 | 1.7 | 1.0 | 5.5 | 2.9 |
Hypothyroidism | 1.6 | 2.4 | 1.6 | 2.0 | 1.1 | 1.5 | 1.3 | 1.4 | 0.8 | 1.3 |
Renal failure | 14.2 | 8.7 | 17.2 | 10.4 | - | - | 2.6 | 1.1 | 5.9 | 1.6 |
Liver disease | 1.1 | 1.2 | 1.4 | 1.7 | 2.2 | 1.8 | 0.4 | 0.4 | 0.3 | 0.5 |
Peptic ulcer disease excluding bleeding | 0.2 | 0.2 | 0.3 | 0.2 | 0.2 | 0.2 | 0.1 | 0.1 | 0.3 | 0.6 |
AIDS/HIV | 0.0 | 0.1 | 0.1 | 0.1 | 0.0 | 0.0 | 0.0 | 0.1 | 0.0 | 0.1 |
Lymphoma | 0.5 | 0.5 | 0.3 | 0.3 | 1.4 | 0.9 | 0.2 | 0.2 | 0.1 | 0.1 |
Metastatic cancer | 0.7 | 0.7 | 0.8 | 0.5 | 1.6 | 0.5 | 0.8 | 0.8 | 0.1 | 0.0 |
Solid tumor without metastasis | 1.6 | 1.9 | 1.5 | 1.2 | 3.2 | 2.0 | 1.8 | 1.6 | 0.6 | 0.7 |
Rheumatoid arthritis/collagen vascular diseases | 0.9 | 1.6 | 0.7 | 0.9 | 2.7 | 4.2 | 0.6 | 1.0 | 0.5 | 0.7 |
Coagulopathy | 0.7 | 0.5 | 0.4 | 0.4 | 1.6 | 0.9 | 0.7 | 0.5 | 1.7 | 1.5 |
Obesity | 1.4 | 1.5 | 1.8 | 2.5 | 0.9 | 0.8 | 0.4 | 0.5 | 1.3 | 2.6 |
Weight loss | 0.6 | 0.6 | 1.0 | 0.9 | 2.1 | 1.5 | 0.4 | 0.3 | 0.2 | 0.3 |
Fluid and electrolyte disorders | 4.7 | 4.0 | 8.4 | 8.7 | 12.3 | 9.9 | 2.4 | 2.0 | 0.9 | 1.1 |
Blood loss anaemia | 0.9 | 1.4 | 0.4 | 0.8 | 1.1 | 1.7 | 0.2 | 0.3 | 0.1 | 0.2 |
Deficiency anaemia | 2.0 | 0.6 | 1.4 | 0.5 | 2.4 | 0.7 | 0.6 | 0.2 | 0.4 | 0.1 |
Alcohol abuse | 1.7 | 2.0 | 3.3 | 3.0 | 1.4 | 1.0 | 1.8 | 1.2 | 1.0 | 0.8 |
Drug abuse | 0.3 | 0.3 | 1.9 | 2.0 | 0.8 | 0.2 | 0.4 | 0.2 | 0.2 | 0.3 |
Psychoses | 0.3 | 1.4 | 0.8 | 2.0 | 0.8 | 2.1 | 0.3 | 1.0 | 2.6 | 0.5 |
Depression | 1.7 | 1.9 | 3.5 | 3.3 | 2.7 | 2.4 | 2.4 | 1.8 | 1.2 | 1.2 |