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.


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

1I-squared: the variation in WMD attributable to heterogeneity

Hozo et al. BMC Medical Research Methodology 2005 5:13   doi:10.1186/1471-2288-5-13