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The Egyptian Heart Journal
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Table 2 The
R
2
and significance of cubic regression between the level of salivary cortisol and HRV features in the 98 tests
From:
The persistent effect of acute psychosocial stress on heart rate variability
RR
SD of RR
HR
PVLF
PHF
SD1 of PP
α1 of DFA
Cortisol
R
2
0.225
0.129
0.26
0.29
0.162
0.194
0.13
Sig
0.000
0.008
0.000
0.000
0.002
0.000
0.008
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