Characteristics of patients in the random sample of potential AMI cases
| IPCI | HSD | Aarhus | ||||
|---|---|---|---|---|---|---|
| Total N: 400 (%) | Confirmed cases N: 93 (%) | Total N: 200 (%) | Confirmed cases N: 115 (%) | Total N: 148 (%) | Confirmed cases N: 148 (%) | |
| Male sex (%) | 246 (61.5) | 87 (93.5) | 132 (66.0) | 80 (69.6) | 103 (69.6) | 82 (55.4) |
| Mean age (years) | 66 | 65 | 68 | 67 | 67 | 67 |
| Cardiovascular risk factors* | ||||||
| Family history of coronary heart disease | 86 (21.5) | 14 (15.1) | 11 (5.5) | 8 (7.0) | 19 (12.8) | 19 (12.8) |
| Dyslipidaemia | 73 (18.2) | 19 (20.4) | 98 (49.0) | 58 (50.4) | 19 (12.8) | 19 (12.8) |
| Diabetes mellitus | 62 (15.5) | 13 (14.0) | 66 (33.0) | 42 (36.5) | 17 (11.4) | 17 (11.4) |
| Hypertension | 126 (31.5) | 36 (38.7) | 113 (56.5) | 76 (66.0) | 44 (29.7) | 44 (29.7) |
| Obesity | 79 (19.8) | 23 (24.7) | 21 (10.5) | 16 (13.9) | 7 (4.7) | 7 (4.7) |
| Cigarette smoking | 111 (27.8) | 36 (38.7) | 39 (19.5) | 22 (19.1) | 50 (33.8) | 50 (33.8) |
| Clinical manifestations* | ||||||
| Chest, jaw or upper extremity pain at rest or with exertion | 102 (25.5) | 52 (55.9) | 23 (11.5) | 13 (11.3) | 118 (79.7) | 118 (79.7) |
| Difficulty breathing (dyspnoea) | 38 (9.5) | 15 (20.4) | 10 (5.0) | 6 (5.2) | 22 (14.8) | 22 (14.8) |
| Excessive sweating (diaphoresis) | 30 (7.5) | 19 (20.4) | 2 (1.0) | 0 (0) | 5 (3.4) | 5 (3.4) |
| Fatigue/weakness | 7 (1.8) | 0 (0) | 2 (1.0) | 1 (0.9) | 5 (3.4) | 5 (3.4) |
| Diagnostic workup performed* | ||||||
| Coronary angiography | 48 (12.0) | 39 (41.9) | 39 (19.5) | 38 (33.0) | 117 (79.1) | 117 (79.1) |
| ECG | ||||||
| ST-segment elevation | 27 (6.7) | 25 (30.1) | 7 (3.5) | 5 (4.4) | 59 (39.9) | 59 (39.9) |
| New Q waves | 7 (1.8) | 4 (4.3) | 1 (0.50) | 1 (0.9) | 9 (6.1) | 9 (6.1) |
| New left bundle branch block (LBBB) | 3 (0.8) | 0 (0) | 0 (0) | 0 (0) | 2 (1.4) | 2 (1.4) |
| T wave inversion | 17 (4.2) | 9 (9.7) | 8 (4.0) | 6 (5.2) | 19 (12.8) | 19 (12.8) |
| Other (ST segment depression, etc) | 19 (7.2) | 19 (20.4) | 7 (3.5) | 7 (6.1) | 9 (6.1) | 9 (6.1) |
| Cardiac enzymes | ||||||
| Elevated cardiac troponin I | 5 (1.2) | 41 (44.1) | 2 (1.0) | 2 (1.7) | 0 (0) | 0 (0) |
| Elevated cardiac troponin T | 6 (1.5) | 6 (9.7) | 0 (0) | 0 (0) | 123 (83.1) | 123 (83.1) |
| Elevated creatine phosphokinase (MB isoenzyme) | 23 (5.8) | 23 (24.7) | 5 (2.5) | 5 (4.4) | 86 (58.1) | 86 (58.1) |
| Other | 8 (2.0) | 5 (5.4) | 3 (1.5) | 3 (2.6) | 5 (3.4) | 5 (3.4) |
| Interventions performed* | ||||||
| Coronary artery bypass graft (CABG) | 15 (3.8) | 10 (10.8) | 17 (8.5) | 17 (14.8) | 7 (4.7) | 7 (4.7) |
| Percutaneous coronary intervention (PCI) | 78 (19.5) | 67 (72.0) | 41 (20.5) | 41 (35.6) | 93 (62.8) | 93 (62.8) |
| Thrombolysis (rTPA/streptokinase, others) | 6 (1.5) | 5 (5.4) | 4 (2.0) | 4 (3.5) | 9 (6.1) | 9 (6.1) |
| Initiation of long-term pharmacotherapy | 116 (29.0) | 93 (100) | 121 (60.5) | 90 (77.6) | 81 (56.8) | 81 (56.8) |
| Deaths with AMI identified as cause | 7 (1.8) | 7 (7.5) | 2 (1.0) | 2 (1.7) | 2 (1.4) | 2 (1.4) |
| Diagnosis confirmed by medical specialist† | 113 (28.2) | 93 (100) | 1 (0.5) | 1 (0.9) | NA | NA |
*Can add up to more than 100%.
†Only applicable for GP databases (HSD and IPCI).
AMI, acute myocardial infarction; HSD, Health Search/CSD Patient DB; IPCI, Integrated Primary Care Information.