Monitoring treatment outcomes in patients with chronic disease: lessons from tuberculosis and HIV/AIDS care and treatment programmes

1 International Union against Tuberculosis and Lung Disease, Paris, France 2 London School of Hygiene and Tropical Medicine, London, UK 3 International Union Against Tuberculosis and Lung Disease, South-East Asia Regional Office, New Delhi, India 4 International Union Against Tuberculosis and Lung Disease, North America Office, New York, NY, USA 5 Department of HIV and AIDS, Ministry of Health, Lilongwe, Malawi 6 ITECH, Malawi and University of Washington, Seattle, WA, USA 7 Center for Health Informatics for the Underserved, University of Pittsburgh, Pittsburgh, PA, USA 8 Baobab Health Trust, Lilongwe, Malawi 9 Medecins sans Frontieres, Medical Department, Operational Research Unit, Brussels Operational Centre, Luxembourg, Luxembourg