Table 2. Frequencies of low, moderate and high MSIS-29 scores among the cohort.

Category	MSIS-29-PHYS
	Low	Moderate	High	Total
	(Lower tertile)	(Middle tertile)	(Upper tertile)
All: No. (in each tertile)	1380	1720	1458	4558
% (in each tertile)	30.3	37.7	32.0	100.0
Type of MS
PPMS: No.	87	274	298	659
%	13.2	41.6	45.2	100.0
RRMS: No.	1035	1000	734	2769
%	37.4	36.1	26.5	100.0
SPMS: No.	21	154	187	362
%	5.8	42.5	51.7	100.0
DKMS: No.	212	251	209	672
%	31.5	37.4	31.1	100.0
	MSIS-29-PSYCH
All: No.	1634	1840	884	4558
%	40.2	40.4	19.4	100.0
Type of MS
PPMS: No.	266	266	127	659
%	40.4	40.4	19.2	100.0
RRMS: No.	1127	1106	536	2769
%	40.7	39.9	19.4	100.0
SPMS: No.	125	161	76	362
%	34.5	44.5	21.0	100.0
DKMS: No.	278	267	127	672
%	41.4	39.7	18.9	100.0
	MSIS-29-PHYS
MSIS-29-PSYCH
Low: No.	1009	614	211	1834
%	55.0	33.5	11.5	100.0
Moderate: No.	342	840	658	1840
%	18.6	45.6	35.8	100.0
High: No.	29	266	589	884
%	3.3	30.1	66.6	100.0