Table 2

Study population characteristics

AuthorInterventionNumber (n)Age (years)Male (%)LVEF (%)NYHA class II (%)NYHA class III (%)NYHA class IV (%)LVEDD (mm)25(OH)D (ng/mL)Ischaemic cause (%)Hypertension
(%)
Diabetes (%)
Turrini et al 26 Vitamin D1777±735.354.7±13.864.735.3051±1.589.4±5.241.264.735.3
Placebo1679±743.849.2±19.168.721.3054±3.489.6±7.343.743.718.7
Witte et al 30 Vitamin D8068.5±12.4583.825.6±10.8092.57.5057.6±8.6238.2±24.8155.0NR21.3
Placebo8369.0±13.7874.726.5±10.6285.514.5058.0±6.4936.4±20.2460.2NR24.1
Qu et al 31 Vitamin D2270±759.334.9±3.8NRNRNRNRNRNR66.781.5
Blank1769±851.834.6±3.9NRNRNRNRNRNR63.085.2
Dalbeni et al 27 Vitamin D1371.2±6.2284.639.08±8.0058.8*50.0†53.9±6.8116.2±6.5976.9100NR
Placebo1073.4±13.7860.043.6±7.6341.2*50.0†50.6±7.0416.0±6.1590100NR
Boxer et al 32 Vitamin D1965.8±10.648.439.2±13.255.073.00NR19.1±9.325.883.051.6
Placebo1566.0±10.454.536.1±14.545.027.00NR17.8±9.030.384.842.4
Shedeed29 Vitamin D420.86±1.364.2936.4±2.26NRNRNR32.81±4.613.4±2.21NRNRNR
Placebo380.93±1.057.8937.2±2.62NRNRNR30.7±5.214.0±2.46NRNRNR
Schleithoff et al 28 Vitamin D+calcium4257±7.4185.2532.5±8.67NRNRNR69.0±8.8914.4±7.85473820
Placebo+calcium5154±8.8980.6533.0±7.56NRNRNR69.0±9.2615.3±7.48403223
  • *I and II.

  • †III and IV.

  • 25(OH)D, 25-hydroxyvitamin D; LVEDD, left ventricular end-diastolic dimension; LVEF, left ventricular ejection fraction; NR, not reported; NYHA, New York Heart Association.