Research Article

A Randomised, Double-Blind, Placebo-Controlled Trial with Vitamin D3 in MS: Subgroup Analysis of Patients with Baseline Disease Activity Despite Interferon Treatment

Table 1

Patient characteristics and serum 25(OH)D levels in the vitamin D-and placebo-treated active subgroup patients.

CharacteristicsVitamin DPlacebo

Number of patients1515
Gender (F/M)9/69/6
Age (median, range)37 (25–53)32 (22–47)
BMI (median, range)23.8 (19.7–31.2)25.5 (19.3–32.3)
EDSS (median, range)2 (0–3.5)2 (0–4)
Disease duration (years, median, range)3 (0.6–15.2)1.5 (0.3–4.7)
ARR (mean, SD)0.67 (0.38)0.83 (0.37)
Duration of interferon therapy (months, median, range)23 (4–82)10 (2–53)
Vitamin D intake (μg, mean, SD)2.04 (1.49)2.71 (1.41)
Serum 25(OH)D at baseline (nmol/L, mean, range)55 (35–82)50 (24–81)
Serum 25(OH)D at 12 months (nmol/L, mean, range)115 (78–163)48 (30–68)
Calcium intake (mg, mean, SD)1240 (357)1357 (383)

BMI: body mass index; EDSS: Expanded Disability Status Scale; ARR: annual relapse rate.