Funding for this research was provided by:
Ministeriums für Wissenschaft, Weiterbildung und Kultur (One Health and Urban Tansformation)
Received: 4 November 2018
Accepted: 27 November 2018
First Online: 19 December 2018
Change Date: 9 August 2019
Change Type: Correction
Change Details: It was highlighted that the original article  contained an error in the Methods section, specifically in Study Section. The number urban health centres should be 72 instead of 6. This Correction article shows the incorrect and correct statement in the Methods section.
Ethics approval and consent to participate
: Ethics approval has been obtained from the Research Ethics Committee, Center for Development Research (ZEF), University of Bonn, Germany, and the Institutional Ethics Committee of the Indian Institute of Public Health Gandhinagar, India.
: Not applicable.
: The authors declare that they have no competing interests.
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