Table 2.

Severity of pain at the baseline (beginning of the intervention), based on NIPS

Statistical test (test statistic) Significance Level	Percentage	Replication number	Pain severity		Group
Mann-Whitney	70	21	Sc0	Scores	Control
U= 0.432	26.7	8	1
z= -0.33	3.3	1	2
P= 0.741	100	30	Total
	70	21	0	Scores	Intervention
	13.3	4	1
	16.7	5	2
	100	30	Total

The two groups were equal in terms of initial pain severity.