Calculating data

The Calculator tool can assist you with data imputation and obtaining suitable data for meta-analysis.

Note: Additional calculator resources, such as updated methods or guidance can be found at training.cochrane.org/calculator.

To calculate data

  1. Open an Outcome tab and click a study.

  2. Click  .
    The calculator window opens. Any study data already entered is used in the corresponding fields.

  3. For Dichotomous and Inverse variance outcomes, select the statistical methods to show.

  4. Enter the data you have.
    If the number you enter is valid, the background in the cell is green, but if there is an error in the data, the background is red.
    Tip
    : You can use the Tab key to move to the next field.
    Tip: You can open a calculator for combining continuous data from multiple groups, by clicking for the group.  

  5. Click Update Data Table.
    The values in the cells with a green border are transferred the data table for the study. The Update Data Table button is only available if your calculations have lead to a possible change in the data.