Estimating Loss to Follow-Up in HIV-Infected Patients on Antiretroviral Therapy: The Effect of the Competing Risk of Death in Zambia and Switzerland

• Franziska Schöni-Affolter ,

  Contributed equally to this work with: Franziska Schöni-Affolter, Olivia Keiser

  Affiliations Division of International and Environmental Health, Institute of Social and Preventive Medicine (ISPM), University of Bern, Bern, Switzerland, Data Centre, Swiss HIV Cohort Study, University Hospital Lausanne, Lausanne, Switzerland

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• Olivia Keiser ,

  Contributed equally to this work with: Franziska Schöni-Affolter, Olivia Keiser

  Affiliation Division of International and Environmental Health, Institute of Social and Preventive Medicine (ISPM), University of Bern, Bern, Switzerland

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• Albert Mwango,

  Affiliation Zambian Ministry of Health, Lusaka, Zambia

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• Jeffrey Stringer,

  Affiliations Centre for Infectious Disease Research in Zambia (CIDRZ), Lusaka, Zambia, Schools of Medicine and Public Health, University of Alabama, Birmingham, Alabama, United States of America

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• Bruno Ledergerber,

  Affiliation Division of Infectious Diseases and Hospital Epidemiology, University Hospital Zurich, University of Zurich, Zurich, Switzerland

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• Lloyd Mulenga,

  Affiliation Centre for Infectious Disease Research in Zambia (CIDRZ), Lusaka, Zambia

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• Heiner C. Bucher,

  Affiliation Basel Institute for Clinical Epidemiology and Biostatistics, University Hospital Basel, Basel, Switzerland

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• Andrew O. Westfall,

  Affiliations Centre for Infectious Disease Research in Zambia (CIDRZ), Lusaka, Zambia, Schools of Medicine and Public Health, University of Alabama, Birmingham, Alabama, United States of America

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• Alexandra Calmy,

  Affiliation HIV/Aids Unit, Division of Infectious Diseases, Department of Internal Medicine, University Hospital Geneva, Geneva, Switzerland

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• Andrew Boulle,

  Affiliation School of Public Health and Family Medicine, University of Cape Town, Cape Town, South Africa

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• Namwinga Chintu,

  Affiliations Centre for Infectious Disease Research in Zambia (CIDRZ), Lusaka, Zambia, Schools of Medicine and Public Health, University of Alabama, Birmingham, Alabama, United States of America

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• Matthias Egger ,

  * E-mail: egger@ispm.unibe.ch

  Affiliations Division of International and Environmental Health, Institute of Social and Preventive Medicine (ISPM), University of Bern, Bern, Switzerland, School of Public Health and Family Medicine, University of Cape Town, Cape Town, South Africa

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• Benjamin H. Chi, for the Swiss HIV Cohort Study and IeDEA Southern Africa

  Affiliations Centre for Infectious Disease Research in Zambia (CIDRZ), Lusaka, Zambia, Schools of Medicine and Public Health, University of Alabama, Birmingham, Alabama, United States of America

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