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Serum Albumin as a Prognostic Marker for Serious Non-AIDS Endpoints in the Strategic Timing of Antiretroviral Treatment (START) Study.

Serum Albumin as a Prognostic Marker for Serious Non-AIDS Endpoints in the Strategic Timing of Antiretroviral Treatment (START) Study.
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Ronit A, Sharma S, Baker JV, Mngqibisa R, Delory T, Caldeira L, Ndembi N, Lundgren JD, Phillips AN, ,


Ronit A, Sharma S, Baker JV, Mngqibisa R, Delory T, Caldeira L, Ndembi N, Lundgren JD, Phillips AN, , (click to view)

Ronit A, Sharma S, Baker JV, Mngqibisa R, Delory T, Caldeira L, Ndembi N, Lundgren JD, Phillips AN, ,

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The Journal of infectious diseases 2017 12 13() doi 10.1093/infdis/jix350
Abstract
Background
Serum albumin may be used to stratify human immunodeficiency virus (HIV)-infected persons with high CD4 count according to their risk of serious non-AIDS endpoints.

Methods
Cox proportional hazards models were used to analyze the risk of serious non-AIDS events in the Strategic Timing of Antiretroviral Treatment (START) study (NCT00867048) with serum albumin as a fixed and time-updated predictor. Models with exclusion of events during initial follow-up years were built to assess the ability of serum albumin to predict beyond shorter periods of time. Secondarily, we considered hospitalizations and AIDS events.

Results
Among 4576 participants, 71 developed a serious non-AIDS event, 788 were hospitalized, and 63 experienced an AIDS event. After adjusting for a range of variables associated with hypoalbuminemia, higher baseline serum albumin (per 1 g/dL) was associated with a decreased risk of serious non-AIDS events (hazard ratio, 0.37 [95% confidence interval, .20-.71]; P = .002). Similar results were obtained in a time-updated model, after controlling for interleukin 6, and after excluding initial follow-up years. Serum albumin was independently associated with hospitalization but not with risk of AIDS.

Conclusions
A low serum albumin level is a predictor for short- and long-term serious non-AIDS events, and may be a useful marker of risk of noncommunicable diseases, particularly in resource-limited settings.

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