Multiroute administration of Wharton’s jelly mesenchymal stem cells in chronic complete spinal cord injury: A phase I safety and feasibility study

Table 6 Results of the Friedman test for changes in the Modified Ashworth scale (right values) before and after intervention

	n	Mean	SD	Mean rank	χ2	df	P value
Preoperative	6	8.00	2.45	5.83
Postoperative week 1	6	7.17	3.06	5.17
Postoperative month 1	6	5.33	2.66	3.67	28.452	5	0.000
Postoperative month 2	6	3.83	2.48	3.00
Postoperative month 6	6	3.00	2.19	2.08
Postoperative month 12	6	2.17	1.94	1.25

SD: Standard deviation.