Copyright
©The Author(s) 2015.
World J Meta-Anal. Oct 26, 2015; 3(5): 215-224
Published online Oct 26, 2015. doi: 10.13105/wjma.v3.i5.215
Published online Oct 26, 2015. doi: 10.13105/wjma.v3.i5.215
Table 3 Method for imputing the study-specific standard deviation
Methodnumber | Method name | Mean imputation | Standard Deviation imputation1 |
0 | Reference | Mean | SD |
1 | Conservative SD | Median | max[(3rd quartile - median)/0.6745; (median - 1st quartile)/0.6745] |
2 | Less Conservative SD | Median | min[(3rd quartile - median)/0.6745; (median - 1st quartile)/0.6745] |
3 | Mean SD | Median | (3rd quartile - 1st quartile)/(2 × 0.6745) |
4 | IQR | Median | (3rd quartile - 1st quartile) |
- Citation: Greco T, Biondi-Zoccai G, Gemma M, Guérin C, Zangrillo A, Landoni G. How to impute study-specific standard deviations in meta-analyses of skewed continuous endpoints? World J Meta-Anal 2015; 3(5): 215-224
- URL: https://www.wjgnet.com/2308-3840/full/v3/i5/215.htm
- DOI: https://dx.doi.org/10.13105/wjma.v3.i5.215