Table 5. Wilcoxon signed rank tests for GSE Group 1, control Group 2 and treatment Group 2.

		Negative ranks			Positive ranks			Test statistics
		n	Mean rank	Sum of ranks	n	Mean rank	Sum of ranks	Ties	Z	p
GSE2-GSE1	Group 1	6	5.00	30	11	11.8	123	4	-2.220	0.026
GSE2-GSE1	Control Group	11	11.95	144.5	12	12.04	144.5	4	-0.200	0.842
GSE3-GSE2	Group 2	6	4.42	26.5	11	11.5	126.5	0	-2.386	0.017