Bjelakovic G, Gluud LL, Nikolova D, Whitfield K, Wetterslev J, Simonetti RG, Bjelakovic M, Gluud C. Vitamin D supplementation for prevention of mortality in adults. Cochrane Database of Systematic Reviews 2014, Issue 1. Art. No.: CD007470. DOI: 10.1002/14651858.CD007470.pub3.

Does anyone know if Cochrane publishes the data they use in their meta analysis? I have a suspicion that meta analysis generally does not make good use of the available data. In their vitamin D analysis, they have shockingly large confidence intervals compared to the amount of data they have. I'd like to check that theory.