Total | Highly | Moderately | Less | p Value | |
No | 239 | 46 | 105 | 88 | |
Age (years) | 43 (13) | 44 (15) | 43 (12) | 42 (12) | 0.336 |
Gender (female:male) | 121:118 | 23:23 | 53:52 | 45:43 | 0.991 |
Systolic blood pressure (mm Hg) | 132 (11) | 130 (12) | 133 (11) | 132 (11) | 0.212 |
Diastolic blood pressure (mm Hg) | 76 (7) | 77 (8) | 77 (7) | 75 (7) | 0.279 |
Complications | HT 16, HL 11 | HT 2, HL 3 | HT 7, HL 3 | HT 7, HL 3 | 0.776 |
DM 9 | DM 1 | DM 5 | DM 3 | ||
Beta-blockers (n) | 21 | 2 | 9 | 10 | 0.393 |
Left ventricular ejection fraction (%) | |||||
Initial | 64 (7) | 64 (7) | 64 (7) | 64 (6) | 0.863 |
4-year | 63 (6) | 62 (6)* | 64 (6) | 64 (6) | 0.132 |
Latest | 63 (6) | 61 (6)* | 63 (6)* | 64 (6) | 0.011† |
Left ventricular diastolic dimension (mm) | |||||
Initial | 46 (4) | 46 (4) | 45 (4) | 45 (4) | 0.206 |
4-year | 46 (4) | 48 (3) | 46 (4) | 45 (4) | 0.004† |
Latest | 46 (4) | 48 (3) | 46 (4) | 46 (4) | 0.001† |
PVCs (beats/day) | |||||
Initial | 12 289 (12 238) | 33 197 (10 164) | 11 474 (4296) | 2323 (1436) | <0.001† |
4-year | 12 786 (11 880) | 30 856 (12 310) | 12 645 (6003) | 3510 (2214) | <0.001† |
Latest | 13 568 (12 961) | 32 499 (14 219) | 13 698 (6961) | 3516 (2317) | <0.001† |
Day-to-day variability of PVCs (beats/day) | |||||
Initial | 2420 (2935) | 6998 (3057) | 2197 (1578) | 296 (234) | <0.001† |
4-year | 2672 (2868) | 6582 (3234) | 2246 (1428) | 372 (282) | <0.001† |
Latest | 2486 (2685) | 7029 (3167) | 2145 (1522) | 321 (256) | <0.001† |
NSVT (>3 beats, %) | |||||
Initial | 18.8 | 34.8 | 15.2 | 14.8 | 0.008† |
4-year | 15.1 | 39.1 | 11.4 | 6.8 | <0.001† |
Latest | 20.1 | 39.1 | 16.1 | 14.8 | 0.016† |
Initial, 4-year and latest indicate the evaluation time points.
*p<0.05 versus the data during the initial evaluation.
†Statistically significant differences among the three groups.
DM, diabetis mellitus; HL, hyperlipidaemia; HT, hypertension; NSVT, presence of non-sustained ventricular tachycardia; PVC, premature ventricular contraction.