Magnetic resonance spectroscopy of normal appearing white matter in early relapsing-remitting multiple sclerosis: correlations between disability and spectroscopy

Table 3 Correlations between the EDSS, AI disability tests and NRS with the MSFC score.

	Spearman's (r) Correlation	P value	Pearson's (r) Correlation	P value
EDSS vs TWT	-0.9373	0.0269	-0.32376	0.0756
EDSS vs 9 hpt	-0.31718	0.0821	-0.27393	0.1359
EDSS vs pasat	-0.00863	0.9633	-0.00257	0.9891
NRS vs TWT	0.42254	0.0179	0.59967	0.0004
NRS vs 9 hpt	0.49227	0.0049	0.54910	0.0014
NRS vs pasat	0.09593	0.6077	0.19549	0.2919
AI vs TWT	-0.56977	0.0008	-0.60091	0.0004
AI vs 9 hpt	-0.62791	0.0002	-0.65049	<0.0001
AI vs pasat	-0.07137	0.7028	-0.13566	0.4668
pasat vs TWT	0.23487	0.2035
pasat vs 9 hpt	0.23715	0.1990
9 hpt vs TWT	0.58846	0.0005

EDSS: Expanded Disability Scale Score; NRS; Neurological Rating Scale; AI: Ambulation Index; TWT: 25 foot timed walk test; 9 HPT: nine hole peg test; PASAT: paced auditory serial addition test