Phase I study on the safety and preliminary efficacy of allogeneic mesenchymal stem cells in hypoxic-ischemic encephalopathy

Table 7 Friedman test results regarding the change in the modified Ashworth scale right scores of the patients before and after the operation

	n	Mean	SD	Mean rank	χ2	df	P value
Pre-test	8	21.88	2.17	5.81	38.875	5	0.000
Post-test 1 wk	8	19.75	3.28	5.06
Post-test 1 mo	8	18.25	3.24	3.94
Post-test 2 mo	8	17.00	3.59	3.19
Post-test 4 mo	8	14.75	3.69	1.94
Post-test 12 mo	8	13.00	4.24	1.06