A graphical tool for locating inconsistency in network meta-analyses

Table 4 Heterogeneity and inconsistency in the antidepressants example

Q statistic		Number of studies	Degrees of freedom	p value
Q ^net	119.6	111	113-11=102	0.113
Q ^inc	36.9	111	44-11=33	0.293
Q ^het	82.7	111	113-44=69	0.125

The Q statistic for the whole network, for inconsistency and for heterogeneity within designs are shown. In addition, the number of studies on which they are based, the degrees of freedom of the corresponding chi-squared distributions and the corresponding p values are displayed.