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Table 2 Results of our meta-analysis with the real sample data as one subgroup, and our estimates of the sample as the second subgroup.

From: Estimating the mean and variance from the median, range, and the size of a sample

  Actual Sample Our Estimate
  WMD [95% CI] % Weight WMD [95% CI] % Weight
Pooled WMD -0.37 [-37.17, 36.44] 42.00 0.41 [-30.92, 31.73] 58.00
Overall pooled WMD 0.08 100.00
  Heterogeneity statistic degrees of freedom P I-squared
Sample 0.04 9 1.000 0.0%
Estimate 0.04 9 1.000 0.0%
Overall 0.08 19 1.000 0.0%
Overall Test for heterogeneity between sub-groups
  0.00 1 0.975  
Significance test(s) of WMD = 0 Sample z = 0.02 p = 0.984
   Estimate z = 0.03 p = 0.980
   Overall z = 0.01 p = 0.995
  1. 1I-squared: the variation in WMD attributable to heterogeneity
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