Table 3.
Baseline data and MI related information in patients with confirmed CHD1 and correct MI diagnoses
| Variable | Total number of patients | Number of patients (%) |
|---|---|---|
| Sex | 147 | |
| Male | 96 (65.3%) | |
| Female | 51 (34.7%) | |
| CHD diagnosis | 147 | |
| ASD secundum/PFO | 73 (49.7%) | |
| VSD | 16 (10.9%) | |
| Other | 58 (39.5%) | |
| Age at MI | 147 | 59 (IQR 50–67) |
| Previous MI or ischemic heart disease | 147 | |
| Yes | 39 (26.5%) | |
| No | 107 (72.8%) | |
| Info missing | 1 (0.7%) | |
| Symptoms | 147 | |
| Typical | 118 (80.3%) | |
| Atypical | 13 (8.8%) | |
| No symptoms | 8 (5.4%) | |
| Info missing | 8 (5.4%) | |
| Cardiac enzymes and biomarkers2 | 147 | |
| Lablist available | 92 (62.6%) | |
| Values only mentioned in text | 40 (27.2%) | |
| Not taken | 4 (2.7%) | |
| Info missing | 11 (7.5%) | |
| Troponin T or I measured | 147 | |
| Yes | 95 (64.6%) | |
| No | 40 (27.2%) | |
| Info missing | 12 (8.2%) | |
| Enzymes/biomarkers elevated | 147 | |
| Yes | 124 (84.4%) | |
| No | 4 (2.7%) | |
| Not taken | 4 (2.7%) | |
| Info missing | 15 (10.2%) | |
| ECG report available | 147 | |
| Yes | 82 (55.8%) | |
| No | 5 (3.4%) | |
| Mentioned in text | 58 (39.5%) | |
| Info missing | 2 (1.4%) | |
| ECG | 140 | |
| ST elevation | 52 (37.1%) | |
| Non-ST elevation (ST-depression, Q-waves, LBBB/RBBB, T-wave inversion) | 71 (50.7%) | |
| Other | 11 (7.9%) | |
| Normal | 6 (4.3%) | |
| CABG | 147 | |
| Yes | 21 (14.3%) | |
| No | 125 (85.0%) | |
| Info missing | 1 (0.7%) | |
| Trombolysis | 147 | |
| Yes | 11 (7.5%) | |
| No | 133 (90.5%) | |
| Info missing | 3 (2.0%) | |
| PCI | 147 | |
| Yes | 46 (31.3%) | |
| No | 99 (67.3%) | |
| Info missing | 2 (1.4%) | |
| Coronary angiogram | 147 | |
| Yes | 95 (64.6%) | |
| No | 49 (33.3%) | |
| Info missing | 3 (2.0%) | |
| Coronary angiogram results3 | 95 | |
| Oclusion in 1 vessel | 35 (36.8%) | |
| Oclusion in 2 vessels | 16 (16.8%) | |
| Oclusion in 3 vessels | 22 (23.2%) | |
| No oclusion | 16 (16.8%) | |
| Other | 5 (5.3%) | |
| Info missing | 1 (1.1%) | |
| MI type as stated in medical records | 147 | |
| Type 1 | 2 (1.4%) | |
| Type 2 | 11 (7.5%) | |
| Other | 2 (1.4%) | |
| Info missing | 132 (89.8%) | |
| Assessment of MI type | 147 | |
| Type 1 | 107 (72.8%) | |
| Type 2 | 35 (23.8%) | |
| Type 3 | 3 (2.0%) | |
| Type 4 | 0 (0.0%) | |
| Type 5 | 2 (1.4%) | |
| Known CHD diagnosis before MI | 147 | |
| Yes | 87 (59.2%) | |
| No | 58 (39.5%) | |
| Info missing | 2 (1.4%) | |
| CHD diagnosed under investigation for MI | 147 | |
| Yes | 29 (19.7%) | |
| No | 116 (78.9%) | |
| Info missing | 2 (1.4%) |
1Confirmed CHD includes correct CHD and misclassified CHD diagnoses
2 TNT/TNI/CK/CK-MB/CK-B/ASAT/ALAT/LD
3defined as > 50% stenosis or mentioning in text “significant stenosis” or “occlusion”
Abbreviations: CHD congenital heart disease, ASD atrial septal defect, PFO patent foramen ovale, VSD ventricular septal defect, MI myocardial infarction, PCI percutaneous coronary intervention, CABG coronary artery bypass grafting, ECG electrocardiogram