Indicator Condition-Guided HIV Testing in Primary Care

Indicator condition–guided HIV testing is a targeted approach in which primary care practitioners offer an HIV test to patients presenting with specific clinical conditions known to be associated with undiagnosed HIV infection. By focusing on conditions—such as tuberculosis, mononucleosis-like syndromes, certain malignancies and unexplained cytopenias—that frequently occur in individuals with HIV, clinicians can significantly increase early case finding and reduce the proportion of late diagnoses. This strategy complements universal screening recommendations and risk-factor–based testing by capturing missed opportunities in routine care. Implementation in general practice has demonstrated cost-effectiveness when the underlying HIV prevalence in a given indicator condition population exceeds a threshold of approximately 0.1 %. Globally, integrating indicator condition prompts into electronic health records, clinician education and national guidelines has been shown to streamline decision-making and enhance linkage to care, ultimately improving patient outcomes and public health impact.

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Indicator Condition-Guided HIV Testing in Primary Care publication trend

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Technical terms

Indicator condition: A clinical diagnosis or syndrome associated with an elevated likelihood of underlying HIV infection, used to trigger provider-initiated HIV testing.

Late diagnosis: Identification of HIV infection at an advanced stage, often defined by a CD4 cell count below 350 cells/μL or the presence of an AIDS-defining illness.

Primary care physician: A clinician, typically a general practitioner, who serves as the first point of contact for patients and oversees comprehensive, continuous care.

Mononucleosis-like syndrome: A constellation of symptoms—including fever, lymphadenopathy and pharyngitis—often resembling infectious mononucleosis and sometimes representing acute HIV seroconversion illness.

Test-all strategy: An HIV testing approach in which all patients in a defined population or age bracket are offered testing, irrespective of presenting condition or perceived risk factors.

References

1. Systematic Review: Strategies for Improving HIV Testing and Detection Rates in European Hospitals. Microorganisms (2024).
2. Enhancing indicator condition–guided HIV testing in Taiwan: a nationwide case–control study from 2009 to 2015. BMC Public Health (2024).
3. HIV testing within general practices in Europe: a mixed-methods systematic review. BMC Public Health (2018).