Antiretroviral Therapy Cohort...
Risk calculator from start of...
Please note that this calculator is only applicable to patients who are:
It estimates the probability of experiencing a new AIDS defining disease or death by the end of each year up to 5 years after the patient starts antiretroviral therapy. It also estimates the probability of death from all causes (either HIV or non-HIV related) for up to five years after the start of therapy. Please note that CDC disease stage is defined by clinical diseases only and not by reference to CD4 cell count. You must enter all five prognostic factors for the calculator to work.
Age in years:
16 to 29
30 to 39
40 to 49
50 or over
CD4 cell count:
350 or over
HIV-1 RNA copies/ml:
100,000 or over
CDC disease stage:
A or B
HIV transmission through injection drug use:
For more information on the methods used in the calculations and the limitations on their use, please see the corresponding publication from the ART Cohort Collaboration:
The ART Cohort Collaboration: Prognosis of HIV-1 infected patients up to five years after initiation of HAART: collaborative analysis of prospective studies. AIDS 2007, 21:1185–1197. Writing committee: Margaret May, Jonathan Sterne, Caroline Sabin, Dominique Costagliola, Amy Justice, Rodolphe Thiébaut, John Gill, Andrew Phillips, Peter Reiss, Robert Hogg, Bruno Ledergerber, Antonella D'Arminio Monforte, Norbert Schmeisser, Schlomo Staszewski and Matthias Egger
Updated 13 December 2013 by School of Social and Community Medicine
University of Bristol, Canynge Hall, 39 Whatley Road, Bristol BS8 2PS, UK. Tel: +44 (0)117 928 9000