Costs and return to scale analysis of extending the offer of pre-exposure prophylaxis (PrEP) to key populations aged 15–17 years old in two Brazilian cities

• Andreia Costa Santos ,

  Roles Conceptualization, Formal analysis, Methodology, Supervision, Validation, Writing – original draft, Writing – review & editing

  * andreia.santos@stmarys.ac.uk

  Affiliation Faculty of Sports, Technology and Health Sciences, St Mary’s University, London, United Kingdom

  https://orcid.org/0000-0003-0466-7577

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• Joilson Nascimento Paim,

  Roles Data curation, Formal analysis, Validation, Writing – review & editing

  Affiliations Instituto de Saúde Coletiva, Universidade Federal da Bahia, Salvador, Brazil, Escola Politécnica, Universidade Federal da Bahia, Salvador, Brazil

  https://orcid.org/0000-0003-1214-4485

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• Patricia Coelho de Soarez,

  Roles Conceptualization, Validation, Writing – review & editing

  Affiliation Departamento de Medicina Preventiva, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil

  https://orcid.org/0000-0001-8383-0728

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• Natacha Cerchiari,

  Roles Data curation, Formal analysis, Validation, Writing – review & editing

  Affiliation Departamento de Medicina Preventiva, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil

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• Laio Magno,

  Roles Investigation, Validation, Writing – review & editing

  Affiliation Departamento de Ciências da Vida, Universidade do Estado da Bahia, Salvador, Brazil

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• Ines Dourado ,

  Roles Funding acquisition, Investigation, Resources, Writing – review & editing

  ¶‡ ID and AG are Joint Senior Authors

  Affiliation Instituto de Saúde Coletiva, Universidade Federal da Bahia, Salvador, Brazil

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• Alexandre Grangeiro

  Roles Funding acquisition, Investigation, Resources, Writing – review & editing

  ¶‡ ID and AG are Joint Senior Authors

  Affiliation Departamento de Medicina Preventiva, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil

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