Fig 1.
Flow chart of the study recruitment and resulting study population.
388 MS participants and 309 matched controls returned sampling kits. In some cases, data or biological material was not available for all data points, resulting in 388 MS with data and 371 MS with DBS and 305 controls with data and 309 controls with DBS.
Table 1.
Participant demographics.
Fig 2.
Vitamin D supplementation dose and serum 25(OH)D levels in MS and control participants.
(a) Distribution of dose (IU/day) of vitamin D amongst those MS (n = 238) and control (n = 63) that take supplements. (b) Serum 25(OH)D levels (nmol/L) of MS (n = 321) and control (n = 261) participants. (c) Serum 25-(OH)D levels of MS and control split by Vitamin D supplementation status.
Table 2.
Vitamin D supplementation behaviour and serum 25-(OH)D levels in the biological sampling group.
Table 3.
Vitamin D status of MS and matched controls based on 25(OH)D levels.