Table 5

Comparisons of HRV measurement in the group of patients stratified by IMT
Normal IMT Thickening Plaque P-value
Mean St. Dev. Quartiles Mean St. Dev. Quartiles Mean St. Dev. Quartiles
1st 2nd 3rd 1st 2nd 3rd 1st 2nd 3rd
AVNN 830.0 123.5 749.2 821.6 916.2 842.3 141.8 746.7 820.5 957.3 879.0 124.7 797.1 864.8 952.0 0.116
SDNN 140.1 48.8 105.3 132.3 171.3 121.7 34.3 94.2 115.3 147.2 116.9 33.3 93.3 111.6 136.9 0.049
SDANN 128.4 49.7 88.2 124.8 157.9 110.8 34.7 81.0 102.2 138.3 104.1 33.5 80.3 98.5 124.1 0.046
SDNN IDX 58.9 19.0 44.4 55.2 73.1 50.7 13.8 43.0 48.9 56.5 49.0 14.2 38.8 47.4 59.5 0.042
RMSSD 36.9 13.5 26.8 32.2 42.6 30.7 11.7 22.1 29.7 34.0 35.2 17.9 22.7 30.5 41.7 0.216
pNN50 12.5 9.1 5.9 8.2 16.5 9.2 9.1 2.8 6.1 11.3 10.6 10.0 3.1 8.3 15.5 0.195
TOTPWR 24209 16727 12113 19664 31647 17583 10891 9798 14497 22534 16480 9863 9300 13860 21255 0.049
ULF 19550 13805 9436 16075 25947 14453 9137 7958 11822 18562 13420 8327 7216 10942 17851 0.092
VLF 2590 1944 1113 2117 3172 1746 1101 1091 1514 1862 1640 1027 960 1325 2251 0.052
LF 1255 1040 471 1006 1863 819 627 493 688 934 726 595 357 568 934 0.009
HF 813 685 305 542 1299 566 517 178 499 617 694 661 229 477 914 0.376
LF/HF 1.78 0.98 1.05 1.53 2.25 2.02 1.25 1.14 1.55 2.71 1.33 0.75 0.82 1.13 1.68 0.002

St. Dev. standard deviation.

The p-values refer to Kruskal-Wallis test.

Melillo et al.

Melillo et al. BMC Cardiovascular Disorders 2012 12:105   doi:10.1186/1471-2261-12-105

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