Table 5.

Analysis of correlations among HRV, BDI, BDI item 9, and MMPI-PTSD

^*p<0.05, ^**p<0.01, ^***p<0.001. 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 interval, 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