Frequency of network meta-analyses (n = 210) by year, indication, and country.

† We limited our literature search to studies published in the medical literature. We did not include NMAs submitted to national health technology assessment agencies unless also published in the Ovid-MEDLINE database. * ‘Other countries’ includes Greece, Ireland, Singapore, Australia, Cameroon, Denmark, Finland, Hong Kong, Korea, Norway, Poland, and Portugal. Frequency of network meta-analyses (n = 210) by year, indication, and country.