Prognostic value of parameters of HRV.

Among all parameters, Area5, Area6–20, and LF were significantly lower (p = 0.027, p = 0.021, and p = 0.004 respectively) in the mortality group and those indices may potentially serve as outcome predictors.Slope5 = the linear-fitted slope of the first 5 scales, Area5 = the summations of quantitative values of scale 1–5, Area6–20 = the summations of quantitative values of scale 6–20.