Table 2.

Correlation between levels of biomarkers and clinical parameters of steroid naïve DMD ambulant patients. ** Correlation is significant at the 0.01 level (two-tailed). * Correlation is significant at the 0.05 level (two-tailed).

Biomarker		Age (Years)	NSAA	6 MW	Barthel	Brook L	Vignos	T10mw	T10mr	Gowers	Stair	Chair	Shirt
MMP-9	Correlation coefficient	0.13	−0.34	0.16	0.05	0.29	0.39	0.2	0.650 **	0.514 *	0.21	−0.12	0.39
	p-Value	0.58	0.25	0.61	0.85	0.21	0.09	0.56	0.01	0.04	0.43	0.62	0.11
TIMP-1	Correlation coefficient	−0.24	0.68	−0.23	0.07	−0.27	−0.07	0.09	0.05	0.09	0.39	−0.37	−0.09
	p-Value	0.44	0.06	0.62	0.86	0.38	0.82	0.82	0.89	0.81	0.29	0.32	0.81
GDF-8	Correlation coefficient	0.02	−0.13	-0.3	−0.33	−0.22	−0.16	−0.27	−0.36	−0.13	−0.09	0.29	−0.07
	p-Value	0.95	0.75	0.4	0.32	0.47	0.61	0.42	0.25	0.7	0.8	0.39	0.84
MMP-2	Correlation coefficient	−0.1	0.41	0.13	0.3	−0.3	−0.37	0.29	0.03	−0.25	−0.17	−0.586 *	−0.41
	p-Value	0.68	0.16	0.67	0.37	0.22	0.13	0.41	0.9	0.39	0.55	0.02	0.11
FSTN	Correlation coefficient	−0.22	−0.14	−0.02	0.02	0.30	0.03	0.19	0.17	0.00	0.1	−0.07	0.16
	p-Value	0.38	0.64	0.94	0.94	0.21	0.91	0.59	0.51	0.99	0.73	0.79	0.56