Table 5.
Multivariate analysis
| Factor | Occurrence group (n=12) | Non-occurrence group (n=112) | χ2/t value | P value |
|---|---|---|---|---|
| Age | 2.119 | 0.145 | ||
| ≥ 60 years old (n=92) | 11 | 81 | ||
| < 60 years old (n=32) | 1 | 31 | ||
| Gender | 1.543 | 0.214 | ||
| Male (n=82) | 6 | 76 | ||
| Female (n=42) | 6 | 36 | ||
| BMI | 0.007 | 0.933 | ||
| ≥ 23 kg/m2 (n=40) | 4 | 36 | ||
| < 23 kg/m2 (n=84) | 8 | 76 | ||
| Course of disease | 0.080 | 0.776 | ||
| ≥ 3 h (n=46) | 4 | 42 | ||
| < 3 h (n=78) | 8 | 70 | ||
| NYHA classification | 7.519 | 0.023 | ||
| Grade II (n=37) | 1 | 36 | ||
| Grade III (n=47) | 3 | 44 | ||
| Grade IV (n=40) | 8 | 32 | ||
| Past medical history | ||||
| Hypertension (n=63) | 7 | 56 | 0.301 | 0.583 |
| Diabetes mellitus (n=49) | 4 | 45 | 0.212 | 0.644 |
| History of smoking | 0.039 | 0.843 | ||
| Yes (n=90) | 9 | 81 | ||
| No (n=34) | 3 | 31 | ||
| LVEF (%) | 49.48±4.47 | 55.74±5.86 | 3.580 | 0.001 |
| LVEDD (mm) | 43.23±3.30 | 39.81±3.63 | 3.123 | 0.002 |
| CK (U/L) | 26.00±2.68 | 23.00±3.76 | 2.688 | 0.008 |
| CK-MB (U/L) | 84.79±8.34 | 76.00±9.34 | 3.126 | 0.002 |
| Lp-PLA2 (μg/L) | 229.91±19.16 | 212.46±19.96 | 2.887 | 0.004 |
Notes: BMI: Body Mass Index; NYHA: New York Heart Association; LVEF: Left Ventricular Ejection Fraction; LVEDD: Left Ventricular End-Diastolic Dimension; Lp-PLA2: Lipoprotein-Associated Phospholipase A2; CK: Creatine Phosphokinase; CK-MB: Creatine Phosphokinase Isoenzyme.