MDCalc

Denver HIV Risk Score

Predicts probability of undiagnosed HIV infection.

  • This calculator includes inputs based on race, which may or may not provide better estimates. As a result, we have decided to make race an optional input. See here for more on our approach to addressing race and bias on MDCalc.
  • For the same non-race inputs, this calculator estimates higher risk of HIV prevalence in Hispanic and Black patients.

Age, years

Gender

Sexual practices

Choose practice that yields the highest score, e.g. if patient engages in both vaginal and receptive anal intercourse, choose the latter to assign 8 points
Other risk factors
Race/ethnicity
Race may/may not provide better estimates of HIV prevalence; optional

Result:

Please fill out required fields.
Advice
  • The CDC recommends that all patients aged 13-64 be tested for HIV at least once as part of routine health care.
  • This tool is meant to augment, not replace, existing HIV screening guidelines.
Management

A score ≥30 indicates an increased risk for undiagnosed HIV infection.

  • Offer HIV testing, which may include nucleic acid, antibody, or antigen/antibody combination tests.
  • For positive results, order confirmatory testing, provide education and counseling, and refer the patient for specialty HIV care and antiviral therapy.
  • For negative results, provide prevention counseling and consider frequent rescreening if risk factors remain (e.g., injection drug use, men who have sex with men, or a sex partner with HIV).
Critical Actions

  • Be aware of HIV testing and reporting laws in your state.

  • For detailed screening recommendations, visit the CDC.
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