Table 1.

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

	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)

^a: Mann-Whitney U test

^b: t-test

SD standard deviation

VAS visual analogue scale