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JAIDS Journal of Acquired Immune Deficiency Syndromes:
doi: 10.1097/QAI.0b013e318278e976
Implementation and Operational Research: Epidemiology and Prevention

The Feasibility of Using Screening Criteria to Reduce Clinic Visits for Stable Patients on Antiretroviral Therapy in South Africa

MacLeod, William B. ScD*,†,‡; Maskew, Mhairi MBBCh, MSc (Med), Dip HIV Man*; A. Jaffray, Imogen RN, RM§; MacPhail, A. Patrick MBBCh, PhD§,‖; D. Ive, Prudence MBBCH, FCP(SA), DTM&H, Dip HIV Man (SA); Fox, Matthew P. DSc, MPH*,†,¶

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Abstract

Objectives: South African HIV care providers are exploring ways to reduce the intensity of patient visits while maintaining high quality of care. We used routinely collected data to model whether a simple screening tool could identify stable patients who would not need to see a doctor during a scheduled medical visit.

Design: We identified stable and nonstable visits from January 2007 to September 2011 at a large HIV clinic in Johannesburg, SA. Stable medical visits were defined as having all of the following: stable CD4 count, undetectable viral load, stable weight, not pregnant, no comorbidity, no regimen change within three months, and normal laboratory results for hemoglobin, alanine aminotransferase, and creatinine clearance.

Methods: We assessed the sensitivity and specificity of nonstable visits at predicting indicators of disease progression or needing additional care: (1) ART regimen change and (2) follow-up visits in <2 and <4 weeks from previous visit.

Results: Stable visits had a sensitivity of 88.9% (95% confidence interval: 88.2 to 89.7) and a specificity of 44.8% (44.5 to 44.1) at predicting ART therapy changes, and a sensitivity of 72.6% (71.8 to 73.4) and specificity of 45.1% (44.8 to 45.4) for predicting a follow-up visit interval of <2 weeks and similar results for predicting a follow-up visit interval of <4 weeks.

Conclusions: Our retrospective analysis suggests an approach to potentially reduce the number of medical visits while missing few visits in which changes in regimen or additional care would be needed. Evaluation of our criteria in a primary care setting is needed to determine whether they could safely reduce visits.

© 2013 Lippincott Williams & Wilkins, Inc.

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