We have produced some helpsheets on common issues in analysis and statistics in Cochrane Reviews:

  1. Generic Inverse Variance (GIV): GIV is used to enter data reported in various formats into RevMan
  2. Transitivity assumption: the transitivity assumption is pertinent to all reviews, but especially overviews and network meta analysis
  3. Videos on how to use the calculator in RevMan
  4. RevMan defaults to displaying two decimal places in forest plots and the text. You can force it to show four decimal places in a figure - here's how
  5. If you see high heterogeneity (I2) in a forest plot, or one study is stealing all the weight, before jumping to conclusions you should investigate the possibility of a data entry error

Photo of statistical editor, Chris Cates