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Table 1 Comparison of blood pressure, VAS score, and mean heart rate before the intervention between the two groups

From: Hearing laughter improves the recovery process of the autonomic nervous system after a stress-loading task: a randomized controlled trial

  Laughter group (n = 45) Rest group (n = 45) P value
Systolic blood pressure
 Median (interquartile range) 103.00 (99.50–110.50) 104.00 (99.50–109.50) 0.961a)
Diastolic blood pressure
 Median (interquartile range) 67.00 (59.00–70.50) 67.00 (63.50–70.50) 0.403a)
VAS
 Median (interquartile range) 26.00 (8.50–54.50) 25.00 (7.00–41.50) 0.405a)
Mean Heart rate
 Mean (SD) 77.62 (7.78) 78.95 (7.69) 0.064b)
  1. a: Mann-Whitney U test
  2. b: t-test
  3. SD standard deviation
  4. VAS visual analogue scale