Table 5 Pearson correlation between the RHI and other variables in patients with DFS

RHI

Pearson Correlation

1

Sig. (2-tailed)

N

63

MMSE corrected for age

Pearson Correlation

− 0.047

Sig. (2-tailed)

0.717

N

63

RMSSD (ms)

Pearson Correlation

0.470

Sig. (2-tailed)

0.0001

N

63

SDANN5 MIN (ms)

Pearson Correlation

− 0.158

Sig. (2-tailed)

0.216

N

63

SD (ms)

Pearson Correlation

0.374

Sig. (2-tailed)

0.002

N

63

LF (%)

Pearson Correlation

0.022

Sig. (2-tailed)

0.862

N

63

HF (%)

Pearson Correlation

0.395

Sig. (2-tailed)

0.001

N

63

LF/HF

Pearson Correlation

0.280

Sig. (2-tailed)

0.026

N

63

Omentin-1 (ng/ml)

Pearson Correlation

0.067

Sig. (2-tailed)

0.602

N

63

Vaspine

Pearson Correlation

− 0.151

Sig. (2-tailed)

0.237

N

63