Median to mean
Estimate each arm's mean and SD from the sample size and the median with the interquartile range, the range, or both. Mean and SD appear as soon as enough cells are filled. Methods and skewness test as in median2mean by Tong et al. (opens in a new tab)
Studies
| Study (optional) | Intervention | Control | Remove | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| n | Median | Q1 | Q3 | Min | Max | Mean | SD | n | Median | Q1 | Q3 | Min | Max | Mean | SD | ||
- Not significantly skewed
- Significantly skewed: normal-based estimates not recommended
Needs n and the median, plus Q1 and Q3 (scenario 2), the minimum and maximum (scenario 1), or all of them (scenario 3). Mean by Luo et al. (2018); SD by Wan et al. (2014) in scenarios 1 and 2 and Shi et al. (2020) in scenario 3; skewness by Shi et al. (2023). Hover a result to see the method used.