Characteristics of the Norwegian population of patients aged 18+ admitted to hospital with a primary diagnosis of AMI (2009, N=9412)
| Characteristic | Per cent/mean | SD |
|---|---|---|
| Men (/women) | 61.3 | |
| Age (years)* | 72.0 | 13.97 |
| Age (categorical)* | ||
| 18–54 years | 12.7 | |
| 55–66 | 23.0 | |
| 67–74 | 15.8 | |
| 75–84 | 26.1 | |
| 85+ | 22.5 | |
| Marital status | ||
| Married | 55.6 | |
| Separated/divorced/widowed/never married | 30.3 | |
| Status unknown | 14.1 | |
| Education | ||
| Primary | 42.6 | |
| Secondary | 45.0 | |
| College/university (tertiary) | 12.5 | |
| Individual income (thousands of kroner)* | 263.0 | 187.92 |
| Individual wealth (thousands of kroner)* | 549.9 | 1210.40 |
| Length of stay (within 365 days preindex admission)* | 5.8 | 13.72 |
| AMI severity | ||
| STEMI/recurrent | 49.5 | |
| Undefined AMI | 23.0 | |
| Non STEMI | 27.4 | |
| Minutes to nearest PCI facility | ||
| 0–29 (road ambulance) | 33.1 | |
| 30–59 (road ambulance) | 18.3 | |
| 60–119 (helicopter) | 24.6 | |
| 120+ (helicopter) | 24.0 | |
| Received PCI (/no PCI) | 31.1 | |
| Comorbidities (/no comorbidities) | ||
| Hypertension | 63.5 | |
| Coronary artery disease | 14.1 | |
| Diabetes mellitus | 15.6 | |
| COPD† | 16.8 | |
| Depression | 12.7 | |
| Atrial fibrillation | 6.7 | |
| Cardiac insufficiency/heart failure | 6.0 | |
| Atherosclerosis | 1.9 | |
| Cancer | 2.4 | |
| Dementia | 4.0 | |
| Parkinson's disease | 1.1 | |
| Mental disorders | 3.3 | |
| Renal insufficiency/failure | 3.1 | |
| Alcoholism | 0.7 | |
| Stroke | 3.6 | |
| Comorbidities (count)* | ||
| Zero | 24.0 | |
| One | 34.3 | |
| Two | 20.4 | |
| Three | 11.1 | |
| At least four | 10.1 | |
| All-cause mortality (/alive) | 18.6 | |
| Cardiovascular disease mortality (/alive) | 10.3 | |
*These variables are for descriptive purposes only; the variables used in the analyses are age (10-years units) and log of income, wealth and length of hospital stay.
†Chronic obstructive pulmonary disease (COPD) and asthma.
AMI, acute myocardial infarction; PCI, percutaneous coronary intervention; STEMI, ST elevation myocardial infarction.