Table 1

The network Q statistics and the degrees of freedom of their corresponding chi-squared distribution
Null hypothesis Q statistic Degrees of freedom
Homogeneity in the whole network Qnet <a onClick="popup('http://www.biomedcentral.com/1471-2288/13/35/mathml/M40','MathML',630,470);return false;" target="_blank" href="http://www.biomedcentral.com/1471-2288/13/35/mathml/M40">View MathML</a>
Homogeneity within designs Qhet <a onClick="popup('http://www.biomedcentral.com/1471-2288/13/35/mathml/M41','MathML',630,470);return false;" target="_blank" href="http://www.biomedcentral.com/1471-2288/13/35/mathml/M41">View MathML</a>
Homogeneity within design d <a onClick="popup('http://www.biomedcentral.com/1471-2288/13/35/mathml/M42','MathML',630,470);return false;" target="_blank" href="http://www.biomedcentral.com/1471-2288/13/35/mathml/M42">View MathML</a> <a onClick="popup('http://www.biomedcentral.com/1471-2288/13/35/mathml/M43','MathML',630,470);return false;" target="_blank" href="http://www.biomedcentral.com/1471-2288/13/35/mathml/M43">View MathML</a>
Consistency between designs Qinc <a onClick="popup('http://www.biomedcentral.com/1471-2288/13/35/mathml/M44','MathML',630,470);return false;" target="_blank" href="http://www.biomedcentral.com/1471-2288/13/35/mathml/M44">View MathML</a>
Consistency between designs after <a onClick="popup('http://www.biomedcentral.com/1471-2288/13/35/mathml/M45','MathML',630,470);return false;" target="_blank" href="http://www.biomedcentral.com/1471-2288/13/35/mathml/M45">View MathML</a> <a onClick="popup('http://www.biomedcentral.com/1471-2288/13/35/mathml/M46','MathML',630,470);return false;" target="_blank" href="http://www.biomedcentral.com/1471-2288/13/35/mathml/M46">View MathML</a>
detaching the effect of design d

In a network with T+1 treatments and a set of studies <a onClick="popup('http://www.biomedcentral.com/1471-2288/13/35/mathml/M38','MathML',630,470);return false;" target="_blank" href="http://www.biomedcentral.com/1471-2288/13/35/mathml/M38">View MathML</a>, d=1,…,D designs are observed. The set of studies with design d is given by <a onClick="popup('http://www.biomedcentral.com/1471-2288/13/35/mathml/M39','MathML',630,470);return false;" target="_blank" href="http://www.biomedcentral.com/1471-2288/13/35/mathml/M39">View MathML</a>. The numbers of treatments in study s and in design d are given by Ns and Nd respectively.

Krahn et al.

Krahn et al. BMC Medical Research Methodology 2013 13:35   doi:10.1186/1471-2288-13-35

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