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  1. J

    Combining data from various trials to obtain weighted mean and SD

    https://www.dropbox.com/t/9RpZDsoIZljwkWOn Here is the link to the article, thank you so much. Figure 7. I only wish to figure out how to calculate the complication rate and vertical gain for collagen and ptfe. I have the data for the included studies in the appendices. Thanks
  2. J

    Combining data from various trials to obtain weighted mean and SD

    That is incredibly helpful of you. The article is "Clinical efficacy of grafting materials in alveolar ridge augmentation: A systematic review*" Figure 7 is what I am interested in. Unfortunately I cannot find a free copy of it online and it is too large to attach here. What would you suggest...
  3. J

    Combining data from various trials to obtain weighted mean and SD

    Hi folks. I need help with some data. It is very basic but I have been out os school for longer than I wish to divulge. I wish to obtain data from a a systematic review. The paper has presented a bar chart but I can't interpret the numbers from the scale and the SD. The appendix has the...