Table 1. The baseline characteristics of acute myocarditis.
| Characteristics | All patients (n=115) | Preserved EF group (n=88) | Reduced EF group (n=27) | P value |
|---|---|---|---|---|
| Age, years | 33±12 | 31±14 | 40±15 | <0.01 |
| Male sex | 79/36 | 64/24 | 15/12 | 0.02 |
| Height, cm | 167.94±7.94 | 168.40±7.98 | 166.04±7.67 | 0.18 |
| Weight, kg | 64.89±12.96 | 63.32±12.44 | 65.28±14.69 | 0.49 |
| Heart rate | 74±14 | 72.92±14.83 | 68.36±11.65 | 0.29 |
| Hypertension | 15 | 12 | 3 | 1.00 |
| Diabetes mellitus | 3 | 3 | 0 | 1.00 |
| Coronary heart disease | 9 | 7 | 2 | 1.00 |
| Chest pain | 90 | 70 | 20 | 0.60 |
| EKG abnormality | 97 | 76 | 21 | 0.36 |
| Prodromal respiratory infection | 35 | 28 | 7 | 0.64 |
| Prodromal gastrointestinal infection | 27 | 20 | 7 | 0.80 |
| CK/CK-MB positive | 67 | 51 | 16 | 0.90 |
| Elevated troponin I | 90 | 64 | 16 | 0.16 |
| Elevated BNP | 60 | 38 | 22 | <0.01 |
EKG abnormality including: ST/T wave changes, bundle branch block or ventricular arrhythmias or AV-block. EKG, electrocardiogram; CK, creatine phosphokinase; CK-MB, creatine phosphokinase isoenzyme; BNP, brain natriuretic peptide.