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Table 2 Pearson correlations between heart rate variability (HRV) recall information scores and stress levels

From: Does heart rate variability predict and improve performance in pediatric CPR?—a simulation study

HRV

Recall information test

Verbal fluency

T2

VAS stress

T2

RMSSD (milliseconds)

0.127

-0.051

-0.08

SDNN (milliseconds)

0.214

-0.026

-0.077

LOG RMSSD

0.169

-0.104

-0.049

LOG SDNN

*0.257

-0.09

-0.037

  1. *P < 0.05
  2. RMSSD = Root means square of successive differences between normal heartbeats. SDNN = Standard deviation of normal-to-normal intervals
  3. Immediately after the end of the CPR simulation