Table 4.

Mean value difference for sample “without music” (sample 1, n = 98) vs. sample “with music” (sample 2, n = 98) via facial electromyography [fEMG] of zygomaticus major 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	65	7.70	5.56	0.001*	4.82	3.42	0.001*	5.17	3.8	0.470
Sample 2	84	4.82	3.33		3.70	3.27		4.30	3.03
Female
Sample 1	31	5.85	2.43	0.027*	4.28	1.85	0.096	4.85	2.82	0.397
Sample 2	41	4.90	2.92		4.36	4.42		4.58	3.29
Male
Sample 1	34	9.39	6.97	0.001*	5.32	4.37	0.001*	5.46	4.52	0.026*
Sample 2	43	4.75	3.71		3.06	1.28		4.02	2.76