Table 2

Primary and secondary outcome measures, for vitamin D-deficient and -replete groups

Outcome measures
Median value (IQR)
Serum markersVitamin D ≤30 nmol/LVitamin D >30 nmol/LDifferenceP value
Peak CRP (mg/L)191.00 (108.00–274.00)155.00 (96.00–252.00)−360.32
Peak LDH (IU/L)272.50 (217.25–367.50)239.50 (180.50–333.00)−330.17*
Peak ferritin (μg/L)518.50 (894.00–1109.25)484.50 (221.00–715.50)−340.40*
Peak D-dimer (μgFEU/L)1914.00 (1323.75–3131.50)1268.00 (1003.50–2273.00)−646 0.034
Peak troponin(ng/L)37.00 (26.00–95.00)42.00 (25.00–88.00)50.83*
Trough lymphocyte count (×109/L)0.56 (0.44–0.78)0.68 (0.54–0.95)0.120.15*
N (%) OR (CI) P value
Chest X-ray changes11 (28.20)8 (25.80)1.13 (0.39–3.28)0.82
Ventilation requirement12 (30.77)3 (9.68)4.15 (1.05–16.34) 0.042
Mortality6 (15.38)4 (12.90)1.40 (0.36–5.47)0.5
  • *P value derived using a parametric technique on logarithmically transformed data.

  • CRP, C reactive protein; LDH, lactate dehydrogenase.