Tools and calculators



This calculator provides estimates of mortality (with 95% confidence intervals) in ART programmes in sub-Saharan Africa that are corrected for loss to follow-up.

The calculation is based on the fact that overall corrected mortality (MC ) in patients that started ART is the average of mortality in patients retained in care (not lost to follow-up, MNL) and mortality in patients lost to follow-up (ML ), weighted by the proportion of patients lost to follow-up (r): ...

This calculator provides estimates of mortality at one year (with 95% confidence intervals, 95% CI) for patients starting ART and remaining in the ART programme in sub-Saharan Africa.

The CD4 cell count and HIV-1 viral load are important prognostic factors in patients on ART, but in many clinics in sub-Saharan Africa neither CD4 counts nor viral load are routinely available. We therefore developed two prognostic models, one including the CD4 count (the CD4 model) and an alternative model where CD4 count was replaced by total lymphocyte count and haemoglobin (the TLC/Hb model). ...

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