pooling data

  1. R

    Comparing pooled data

    I have started a meta analysis comparing the complication rates of different treatments of distal radius fractures. I have pooled the complication rates (n/N) for each treatment separately using the inverse variance method, the DerSimonian-Laird estimator for tau^2, logit transformation...
  2. R

    Non-comparative studies in a meta-analysis

    I am currently busy with the statitics of a meta-analysis using non-comparative studies. Therefor I used the RevMan tool by Cochrane Initiative. But because the studies van non-comparative it does not work. I tried it in different ways, but I can't make it work. Can someone help me pool this...
  3. R

    How meaningful is to pool data from different surveys on the same target population?

    HI everybody, this is a very theoretical question for me but I would like to find an answer as I might want to use this in the (near) future. In many cases same questions are used in different surveys which are targeted for the same (or almost the same) population (and all designed to give...
  4. D

    Two-proportion z test: is it best for my problem, and can I pool data?

    I am examining populations (cultures) of yeast cells and scoring them for a particular trait. The data is categorical; within a population, a yeast cell either has the trait or it does not. I wish to compare two populations -- two genetically different strains of yeast -- to see whether there...