Funding for this research was provided by:
Economic and Social Research Council (ES/T007125/1)
Bloomsbury Colleges (PhD studentship)
Article History
Received: 30 October 2019
Accepted: 26 March 2020
First Online: 6 April 2020
Ethics approval and consent to participate
: The study reported here was approved by the appropriate ethics committees and performed in accordance with the ethical standards laid down in the 1964 Declaration of Helsinki and its later amendments, as well as with all relevant laws and regulations. Ethical approval was provided by the World Health Organization Research Ethics Review Committee (Geneva, Switzerland), the Sangath Institutional Review Board (Goa, India), and the London School of Hygiene & Tropical Medicine Observational Ethics Committee (London, United Kingdom) (ref: 10439).Written informed consent was obtained from all participants, indicated with either a signature or – in cases of low literacy – a thumbprint. This procedure was approved by all of the ethics committees above.
: Not applicable.
: Rahul Shidhaye is a member of the editorial board of BMC Health Services Research. The authors declare that other than this they have no competing interests.