TABLE 3

Correlations Among the NFCS and Physiologic and Spectral Variables

ParameterNFCSCryHRLFHFLF-HF Ratio
NFCS
Cry0.68a
HR0.38a0.44a
LF−0.18b−0.26b−0.38a
HF0.22b0.28b−0.35b0.96a
LF-HF ratio−0.21b−0.27b−0.38a0.97a−0.94a
  • HR indicates heart rate.

  • a P < .001.

  • b P < .05.