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. 2020 Oct 20;20:453. doi: 10.1186/s12872-020-01729-1

Table 4.

Pearson correlation analysis of serum OPG with HRV between control group (participants without diabetes) and diabetes group (patients with diabetes)

Parameters Control group Diabetes group
r p r p
TP 0.206 0.234 − 0.357 0.020
SDNN 0.135 0.439 − 0.345 0.029
RMSSD 0.246 0.145 − 0.333 0.036

TP total power of HRV, SDNN standard deviation of normal to normal interval, RMSSD square root of the mean of the sum of the squares of the differences between adjacent NN intervals

p < 0.05 was considered significant