From: 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
Intentional sun exposure
Level of disability
Mild
Moderate
High
Yes
N
875a
491b
133b
%
58.4
32.8
8.9
No
360b
280a
103a
48.5
37.7
13.9