Latitude, sun exposure and vitamin D supplementation: associations with quality of life and disease outcomes in a large international cohort of people with multiple sclerosis

Table 3 Vitamin D supplementation and level of disability

Average daily vitamin D supplementation		Level of disability
Average daily vitamin D supplementation		Mild	Moderate	High
>5000 IU	N	257	138	52
>5000 IU	%	57.5	30.9	11.6
2001–5000 IU	N	439^a	236	58^b
2001–5000 IU	%	59.9	32.2	7.9
1–2000 IU	N	293^b	243^a	74
1–2000 IU	%	48.0	39.8	12.1
None	N	207	140	48
None	%	52.4	35.4	12.2