Table 3.
Relation between the mean value of HRV time-domain parameters and different patient characteristics
| Patient characteristics | Number of patients | Mean Time (ms) | U | P | SDNN (ms) | U | P | RMSSD (ms) | U | P |
|---|---|---|---|---|---|---|---|---|---|---|
| Gender | ||||||||||
| Male | 85 | 685.01±47.60 | 614.0 | 0.820 | 11.94±3.32 | 609.50 | 0.787 | 7.12±1.95 | 603.0 | 0.738 |
| Female | 15 | 685.67±43.62 | 11.63±3.66 | 7.45±2.63 | ||||||
| Age (years) | ||||||||||
| <65 | 76 | 695.14±44.03 | 382.50* | <0.001* | 12.60±3.29 | 447.50* | <0.001* | 7.41±2.07 | 640.0* | 0.028* |
| ≥ 65 | 24 | 653.33±41.54 | 9.67±2.51 | 6.39±1.83 | ||||||
| HTN | ||||||||||
| No | 53 | 692.57±36.80 | 1067.5 | 0.218 | 12.35±3.02 | 1037.0 | 0.149 | 7.60±1.83 | 891.0* | 0.014* |
| Yes | 47 | 676.70±55.23 | 11.38±3.67 | 6.68±2.19 | ||||||
| DM | ||||||||||
| No | 59 | 698.39±36.35 | 757.0* | <0.001* | 12.77±3.17 | 768.0* | 0.002* | 7.60±1.91 | 823.50* | 0.007* |
| Yes | 41 | 666.0±53.62 | 10.64±3.26 | 6.55±2.11 | ||||||
| FH | ||||||||||
| No | 89 | 686.42±46.04 | 444.0 | 0.616 | 11.96±3.27 | 403.50 | 0.343 | 7.25±2.03 | 388.0 | 0.262 |
| Yes | 11 | 674.55±53.9 | 11.39±4.16 | 6.48±2.20 | ||||||
| Smoking | ||||||||||
| No | 21 | 681.43±51.68 | 788.0 | 0.725 | 11.43±3.60 | 512.0 | 0.516 | 7.13±2.56 | 797.50 | 0.786 |
| Yes | 79 | 686.09±45.75 | 12.02±3.30 | 7.18±1.91 | ||||||
| Dyslipidemia | ||||||||||
| No | 92 | 685.50±45.98 | 366.50 | 0.985 | 11.90±3.24 | 329.0 | 0.620 | 7.16±2.03 | 341.0 | 0.731 |
| Yes | 8 | 680.63±59.07 | 11.8± 4.78 | 7.25±2.46 | ||||||
| LVEF | ||||||||||
| ≤45 | 34 | 662.79±50.17 | 681.0* | 0.001* | 10.88±3.24 | 842.0* | 0.041* | 6.34±1.71 | 709.0* | 0.003* |
| >45 | 66 | 696.6±40.82 | 12.42±3.32 | 7.59±2.09 | ||||||
| ACS | 86 | 683.27±48.39 | 9.30± 2.13 | 7.14±2.07 | ||||||
| Non-ACS | 14 | 696.43±34.94 | 527.50 | 0.459 | 11.82±2.77 | 596.0 | 0.952 | 7.36±1.98 | 564.50 | 0.709 |
| Type of CAD | ||||||||||
| MVD | 42 | 650.26±39.31 | 289.0* | <0.001* | 9.30±2.13 | 259.50* | <0.001* | 5.60±1.64 | 299.0* | <0.001 |
| SVD | 58 | 710.34±33.95 | 13.78±2.78 | 8.30±1.50 | ||||||
| TIMI | ||||||||||
| 0 + I | 27 | 670.19±38.24 | 695.0* | 0.024* | 10.93±2.99 | 4.0 | 0.133 | 6.58±1.83 | 759.0 | 0.078 |
| II + III | 73 | 690.63±48.70 | 12.25±3.43 | 7.38±2.10 | ||||||
| Drug history (Beta-blockers) | ||||||||||
| No | 17 | 694.41±36.09 | 647.50 | 0.594 | 11.74±2.69 | 685.50 | 0.854 | 7.35±2.0 | 659.0 | 0.668 |
| Yes | 83 | 683.2±48.69 | 11.93±3.49 | 7.13±2.07 |
U, P: U and P values for Mann Whitney test for comparing between the two groups.
*
Statistically significant at P≤0.05.