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Usability characteristics of HIV self-tests in Kenya


Author
Ochieng et al.

Publication year
2017

Country

Type of approach
n/a

Type of assistance
Unassisted

Specimen
Fingerstick/whole blood, Oral-fluid

Study population
General population: Urban and rural general population

Study design
Feasibility/acceptability

Sample size
279

UNAIDS HIV prevalence (2017)

Methodology
Participants from both urban and rural settings in Busia, Western Kenya were consented and enrolled in the study. A simple open-ended questionnaire was administered on usability characteristics of oral mucosal transudation and blood capillary self-tests such as steps to result, sample type, time to results, waste generated and perception.

Summary of findings
For the capillary test, 210 participants were recruited; 82% (172/210) of participants found it easy to prick the finger and to collect the sample. Ninety three percent (195/210) of the participants found result interpretation to be easy. There were six steps to the final result; the median period to test results was 20 minutes. Perception of test varied across the study population. 85% (179/210) of the participants perceived the test as good and 93% (195/210) recommended it for use. For the oral mucosal transudation test, the study recruited 69 participants. Of those, 97% (67/69) found it easy to understand the instructions for use, while 92% (63/69) found it easy to collect the oral mucosal transudation with the swabs. 93% (64/69) of the participants found result interpretation to be easy. There were seven steps to the final result; the median period to test results was 20 minutes. Perception of test varied across the study population. 75%(52/69) of the participants preferred the test due to its ease of use, short time of test, portability, confidentiality, use of oral brush, lack of pricking, pain and blood. In both studies, 83% (232/279) of the participants had no problem with the absence of a counselor. After testing, the amount of waste generated was perceived to be little by 60% (167/279) of the participants; 28% (78/279) thought it generated moderate amounts of waste. If the tests were to be sold, 84% (234/279) of the participants would consider purchasing them at various prices between 1-5 USD.

Acceptability
93%

Acceptability details
85% (179/210) of the participants using the blood HIVST perceived the test as good and 93% (195/210) recommended it for use. Overall, 75% (52/69) of the participants preferred the oral HIVST due to its ease of use, short time of test, portability, confidentiality, use of oral brush, lack of pricking, pain and blood.

Willingness to pay
5 US$

Willingness to pay details
Participants would consider purchasing HIVST at various prices between 1-5 US$.

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