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. 2021 Apr 13;12:657902. doi: 10.3389/fphys.2021.657902

TABLE 3.

Descriptive statistics of rate asymmetry descriptors: Guzik’s index and Porta’s index dispersion among participants during HUTT in supine (S) and tilt (T) positions.

Min Max Q1 Median Q3 IQR Mean SD
Guzik’s Index
GI (S)       0.3396       0.6217       0.4823       0.5049       0.5251     0.0428       0.5001       0.0443
GI (T)       0.3619       0.6257       0.4864       0.5225       0.5596     0.0732       0.5208       0.0515
Porta’s Index
PI (S) 44.61   62.73   49.45   51.43   53.33     3.88 51.71     3.32
PI (T) 42.93   62.12   49.73   51.93   54.52     4.79 52.05     3.47
Long-term Guzik’s Index
GILT (S)       0.3180       0.5726       0.4230       0.4621       0.5037     0.0808       0.4622       0.0567
GILT (T)       0.3103       0.6115       0.4286       0.4671       0.5011     0.0725       0.4638       0.0519