Linguistic and psychometric validation of the MSSS-88 questionnaire for patients with multiple sclerosis and spasticity in Germany

Table 5 Known groups' validity of the MSSS-88 [at inclusion (n = 87)]

Subscale MSSS-88	Type of spasticity (physician assessment)							Modified Ashworth scale value group (physician assessment)
	Persistent		Paroxysmal		both		p-value	0 to 2		3 to 4		p-value
	(n = 46)		(n = 31)		(n = 10)			(n = 48)		(n = 37)
	n	Mean ± SD	n	Mean ± SD	n	Mean ± SD		n	Mean ± SD	n	Mean ± SD
Muscle Stiffness	44	53.85 ± 24.96	30	57.85 ± 25.13	10	81.50 ± 16.45	0.0067	48	46.98 ± 24.25	36	74.03 ± 17.81	<0.0001
Pain and Discomfort	43	40.35 ± 23.57	29	40.63 ± 29.40	10	58.15 ± 27.83	0.1434	47	36.84 ± 26.54	35	50.39 ± 24.95	0.0215
Muscle Spasms	45	34.47 ± 20.56	30	40.70 ± 26.51	10	56.90 ± 24.40	0.0243	48	29.09 ± 21.24	37	52.57 ± 20.96	<0.0001
Activities of Daily Living	44	44.20 ± 28.82	28	42.53 ± 34.60	10	70.91 ± 27.37	0.0351	47	32.03 ± 28.32	35	66.84 ± 24.38	<0.0001
Walking	39	64.87 ± 24.16	23	60.74 ± 28.38	6	81.67 ± 20.30	0.2068	46	57.91 ± 25.99	22	79.70 ± 17.70	0.0007
Body Movements	45	55.70 ± 25.68	28	56.17 ± 32.13	9	79.46 ± 21.84	0.0608	48	46.79 ± 27.31	34	74.96 ± 20.83	<0.0001
Emotional Health	45	31.15 ± 22.90	30	32.65 ± 26.31	9	53.56 ± 28.48	0.0481	48	30.49 ± 25.31	36	38.89 ± 25.04	0.1343
Social Functioning	43	34.55 ± 25.96	30	32.60 ± 27.39	10	56.67 ± 30.63	0.0459	47	29.37 ± 26.45	36	45.83 ± 26.98	0.0066

Mean MSSS-88 subscale scores for type of spasticity and muscle tonus [rated by physician].

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