Search HIVST

Replacing clinic-based tests with home-use tests may increase HIV prevalence among Seattle men who have sex with men: evidence from a mathematical model


Author
Katz et al.

Publication year
2014

Country
USA

Type of approach
n/a

Type of assistance
Unassisted

Specimen
Oral-fluid

Study population
Key population: Men who have sex with men

Study design
Modelling

Sample size
n/a

UNAIDS HIV prevalence (2017)
0.2 [0.2 - 0.2]

Methodology
Mathematical model adapted from a deterministic, continuous-time model of HIV transmission parameterized using a hypothetic 2003 random digit dial study of Seattle men who have sex with men (Brewer et al.). Test performance was based on an oral fluid-based HIVST.

Summary of findings
Model suggests that if HIVST replaces / supplements clinic-based testing, HIV prevalence may increase among men who have sex with men (MSM) in Seattle, even if HIVST results in increased testing. These increases in HIV prevalence were mostly caused by the relatively long window period of the currently approved test. If the window period of a home-use test were 2 months instead of 3 months, prevalence would decrease if all MSM replaced clinic-based testing with self-tests and tested more than 2.6 times more frequently.

Acceptability
n/a

Acceptability details
n/a

Willingness to pay
n/a

Willingness to pay details
n/a

Sensitivity
n/a

Specificity
n/a

Concordance
n/a

HIV positivity
n/a

Accuracy details
n/a

Social harm
n/a

Linkage to prevention, care and treatment
n/a


Study status
Completed