Q statistic | Number of studies | Degrees of freedom | p value |
---|
Q
net
| 96.98 | 26 | 27-9=18 | <0.001 |
Q
inc
| 22.53 | 26 | 16-9=7 | 0.002 |
Q
het
| 74.45 | 26 | 27-16=11 | <0.001 |
| 4.38 | 2 | 2-1=1 | 0.036 |
| 42.16 | 3 | 3-1=2 | <0.001 |
| 6.45 | 3 | 3-1=2 | 0.040 |
| 21.27 | 6 | 6-1=5 | 0.001 |
| 0.19 | 2 | 2-1=1 | 0.665 |
- The decomposition of the Q statistics as well as the degrees of freedom of the corresponding chi-squared distributions and the p values are shown. In addition the considered number of studies are displayed. Only one study is observed for the following designs: plac:acar, plac:piog, plac:sita, plac:vild, acar:SUal, metf:piog, metf:SUal, piog:rosi, rosi:SUal, plac:acar:metf. For this reason, the corresponding statistics are not shown.