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. 2021 Apr 26;23(4):e22042. doi: 10.2196/22042

Table 3.

Distribution of biomarker outcomes in a 1-month and 3-month follow-up after participants’ initial onboarding.

Test and outcome 1-month follow-up (n=48), n (%) 3-month follow-up (n=48), n (%)
Sexually transmitted disease


HIVa



Positive 20 (41.7) 23 (47.9)


Negative 28 (58.3) 25 (52.1)
Substance use


Amphetamine



Positive 24 (50.0) 21 (43.8)


Negative 24 (50.0) 27 (56.2)

Methamphetamine



Positive 25 (52.1) 22 (45.8)


Negative 23 (47.9) 26 (54.2)

THCb



Positive 20 (41.7) 18 (37.5)


Negative 28 (58.3) 30 (62.5)

aHIV: human immunodeficiency virus.

bTHC: tetrahydrocannabinol.