Table 3.

HRV comparison between depression group and non-depression group, measured by BDI

HRV: heart-rate variability, BDI: Beck Depression Inventory, SDNN: standard deviation of the NN intervals, HR: heart rate, RMSSD: root of the mean squared differences of successive NN intervals, LNTP: log total power, LNVLF: log very-low-frequency components, LNLF: log low-frequency components, LNHF: log high-frequency components, NORMLF: normalized low-frequency components, NORMHF: normalized high-frequency components, LF/HF ratio: low-frequency/high-frequency ratio. N: number of subjects