menza_hiv_risk_score: Menza Score for HIV Risk in MSM

In cliot: Clinical Indices and Outcomes Tools

Menza Score for HIV Risk in MSM

Description

Calculates the Menza Score to predict the 4-year risk of HIV infection in Men who have Sex with Men (MSM). The score identifies high-risk individuals who may benefit from targeted prevention strategies such as Pre-Exposure Prophylaxis (PrEP).

Usage

menza_hiv_risk_score(history_sti, drug_use_meth_poppers,
                     unprotected_anal_intercourse, partners_gt_10)

Arguments

history_sti	Numeric (0 or 1). Current or history of gonorrhea, chlamydia, or syphilis. (1 = Yes, +4 points).
drug_use_meth_poppers	Numeric (0 or 1). Use of methamphetamine or inhaled nitrites (poppers) in the prior 6 months. (1 = Yes, +11 points).
unprotected_anal_intercourse	Numeric (0 or 1). Unprotected anal intercourse with a partner of positive or unknown HIV status in the prior year. (1 = Yes, +1 point).
partners_gt_10	Numeric (0 or 1). Report of 10 or more male sexual partners in the prior year. (1 = Yes, +3 points).

Value

A list containing:

Menza_Score	The calculated risk score.
Risk_Category	Classification (High Risk >= 1, Low Risk 0).
Recommendation	Clinical guidance regarding prevention strategies.

References

Menza TW, et al. Prediction of HIV acquisition among men who have sex with men. Sex Transm Dis. 2009;36(9):547-555. doi:10.1097/OLQ.0b013e3181a7d10b

Examples

# Example 1: High Risk
# History of STI (+4), no other factors
# Score = 4
menza_hiv_risk_score(1, 0, 0, 0)

# Example 2: Low Risk
# No risk factors present
# Score = 0
menza_hiv_risk_score(0, 0, 0, 0)

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