The researchers noted as a limitation of their study a heterogeneity in the prevalence studies that prevented either direct comparisons between countries or meta-analytic approaches. Two of Dr. Rahman’s coauthors reported disclosures: Dr. Christian Kieling took part in meetings sponsored by Novartis, Shire, and Deva. Dr. Luis Augusto Rohde acted as speaker or consultant for Eli Lilly, Janssen-Cilag, Novartis, and Shire, and received program funding and research support from those companies.
There was no external funding, and each of the researchers contributed their time to the study.