Table 3.

Mean value difference for sample “without music” (sample 1, n = 98) vs. sample “with music” (sample 2, n = 98) via facial electromyography [fEMG] of corrugator supercilii in μV (*significant one side p ≤ 0.05).

		Examination start			Coecum			Examination end
Number of patients	N	Mean	SD	p-level (one-side)	Mean	SD	p-level (one-side)	Mean	SD	p-level (one-side)
Sample 1	64	8.15	7.72	0.017*	6.86	5.46	0.729	7.23	5.87	0.463
Sample 2	82	7.36	7.13		8.06	8.06		7.24	6.40
Female
Sample 1	30	8.12	7.57	0.287	8.59	7.10	0.971	8.15	6.41	0.707
Sample 2	39	7.68	7.08		9.80	9.32		7.68	6.28
Male
Sample 1	34	8.17	7.96	0.029*	5.33	2.72	0.511	6.42	5.31	0.454
Sample 2	43	7.08	7.24		6.49	6.42		6.84	6.56