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Combine Mean & Standard Deviation (SD) & Total for More than One Group into Single One

This conversion process takes the means, standard deviations, and totals of multiple groups and combines them into a single set of values, making it easier to work with and interpret data.

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If you want to convert or calculate data for more than one study at the same time, enter data for study 1, study 2, study 3, ...etc, RESPECTIVELY across all cells using the same order.

Group 1

Group 2

Group 3

If you want to combine only 2 groups, enter 0 for Mean 3, SD 3, and Total 3.

Conversion Results

Group 1 Group 2 Group 3 Combined Results
Mean1 | SD1 | Total1 Mean2 | SD2 | Total2 Mean3 | SD3 | Total3 Mean | SD | Total

Description of the formula

Variables Definitions

  1. Confidence Interval (CI): This represents the confidence level expressed as a decimal value. For example, 0.95 corresponds to a 95% confidence interval.
  2. Number of Participants: The total number of individuals or data points in the sample or study.
  3. Upper CI Limit: The upper limit of the confidence interval.
  4. Lower CI Limit: The lower limit of the confidence interval.
  5. Standard Deviation (SD): The calculated standard deviation based on the provided confidence interval information.

Conversion Formula

  1. Calculation of the standard errors wide

functionally

View more - Cochrane Handbook - Cochrane Handbook