Table 2 Uni- and multivariate analysis of comparison of patients with and without the appearance of left ventricular (LV) dysfunction
| With LV dysfunction | Without LV dysfunction | Univariate | Multivariate | p Value | ||
| p Value | 95% CI | Odds ratio | ||||
| Number | 13 | 226 | ||||
| Age (years) | 51 (12) | 42 (12) | 0.013* | −0.0964 to 0.0043 | 1.28 | 0.075 |
| Gender (F:M) | 8:5 | 113:113 | 0.418 | |||
| Systolic blood pressure (mm Hg) | 133 (11) | 132 (11) | 0.819 | |||
| Diastolic blood pressure (mm Hg) | 78 (8) | 76 (7) | 0.265 | |||
| Complications | HT 0, HL 1 | HT 16, HL 10 | 0.311 | |||
| DM 0 | DM 9 | |||||
| Beta-blockers (n) | 1 | 20 | 0.886 | |||
| Left ventricular ejection fraction (%) initial | 69 (7) | 64 (6) | 0.004* | −0.3032 to −0.0572 | 18.2 | 0.002* |
| Left ventricular diastolic dimension (mm) initial | 45 (5) | 46 (4) | 0.579 | |||
| PVCs (beats/day) initial | 29 224 (20 181) | 11 313 (10 916) | <0.001* | −0.0001 to −0.0052 | 85.4 | <0.001* |
| PVC grade (highly/moderate/less) | 9/1/3 | 37/104/85 | <0.001* | −0.7182 to 1.6045 | 2.53 | 0.226 |
| NSVT (>3 beats, %) initial | 38.4 | 17.7 | 0.062 | |||
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*Statistically significant differences between the groups with and without LV dysfunction.
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CI, confidence interval; DM, diabetis mellitus; HL, hyperlipidaemia; HT, hypertension; NSVT, presence of non-sustained ventricular tachycardia; PVC, premature ventricular contraction.
