denver_hiv_risk_score: Denver HIV Risk Score

In cliot: Clinical Indices and Outcomes Tools

Denver HIV Risk Score

Description

Calculates the Denver HIV Risk Score to categorize patients into risk groups for HIV infection. This tool helps target HIV screening resources by identifying individuals with a higher pre-test probability of infection. The scoring algorithm differs for men and women.

Usage

denver_hiv_risk_score(age, sex, msm, injection_drug_use,
                      vaginal_anal_sex_no_condom, std_history)

Arguments

age	Numeric. Patient age in years.
sex	String. Patient sex ("Male" or "Female").
msm	Numeric (0 or 1). For males: Sex with men? (1 = Yes).
injection_drug_use	Numeric (0 or 1). Injection drug use? (1 = Yes).
vaginal_anal_sex_no_condom	Numeric (0 or 1). Vaginal or anal sex without a condom? (1 = Yes).
std_history	Numeric (0 or 1). For females: History of sexually transmitted disease? (1 = Yes).

Value

A list containing:

Denver_Score	The calculated risk score (Range 0-~80 depending on combinations).
Risk_Category	Classification (Low <20, Moderate 20-29, High 30-39, Very High 40-49, Extremely High >=50).
Estimated_Prevalence	Estimated prevalence of undiagnosed HIV in this risk group.

References

Haukoos JS, Hopkins E, Bender B, et al. Comparison of enhanced targeted rapid HIV screening using the Denver HIV Risk Score to nontargeted rapid HIV screening in the emergency department. Ann Emerg Med. 2013;61(3):353-361. doi:10.1016/j.annemergmed.2012.11.002

Examples

# Example 1: High Risk Male
# 35yo (+14), MSM (+18), Unprotected Sex (+12)
# Score = 44 (Very High Risk)
denver_hiv_risk_score(35, "male", 1, 0, 1, 0)

# Example 2: Moderate Risk Female
# 25yo (+3), IVDU (+21)
# Score = 24 (Moderate Risk)
denver_hiv_risk_score(25, "female", 0, 1, 0, 0)

cliot documentation built on Dec. 1, 2025, 1:06 a.m.