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

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