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Table 2 Increase in secondary and explorative outcomes in intervention group (active vitamin D) and control group (placebo)

From: Vitamin D supplementation for treatment of seasonal affective symptoms in healthcare professionals: a double-blind randomised placebo-controlled trial

  Intervention group n = 22 Control group n = 21 p-value
WHO-5 6.8 (19.8) 13.0 (19.6) 0.42
Weight, kg 0.9 (1.8) 0.6 (1.7) 0.76
Waist circumference, cm -0.3 (2.9) -1.4 (4.4) 0.50
Blood pressure, mmHg    
  - Systolic 5.0 (13.0) -0.8 (11.1) 0.21
  - Diastolic 1.6 (6.7) 0.3 (9.0) 0.55
Absenteeism, days 1.7 (5.9) 2.6 (5.7) 0.99
  1. Mean increase (SD) from baseline to 12 weeks outcome measurement.