Table 1:

PrEP candidacy categories based on Washington State PrEP implementation guidelines

Recommend PrEP for MSM with any of the following risk factors:

Diagnosis of rectal gonorrhea or syphilisa in the past 12 months Methamphetamine or poppers use in the past 12 months History of exchanging sex for money or drugs in the past 12 months Ongoing sexual partnership(s) with HIV-positive partners(s) who are not on antiretroviral therapy (ART), started ART <6 months ago, or are not virologically suppressed

Discuss PrEP with MSM who do not meet the above criteria for recommending PrEP and who report any of the followinga:

Diagnosis of urethral gonorrhea or rectal chlamydia in the past 12 months Condomless anal sex (CAS) with a partner not considered to be main/primary, or with a partner of unknown or positive HIV status in the past 12 monthsb Non-prescription injection drug use in the past 12 months Ongoing sexual partnership(s) with HIV-positive partners(s) who have been on ART ≥6 months and are virologically suppressed

^aThe guidelines refer to diagnosis of early syphilis. Due to the difficulty of measuring stage of infection via self-report, for this analysis we included any diagnosis of syphilis as an indication for recommending PrEP;

^bThree indications for discussing PrEP with MSM were not measured in the survey: having an HIV-positive female partner with intentions to conceive, completing a course of post-exposure prophylaxis for non-occupational exposure, and seeking a prescription for PrEP;

^cProxy measure for CAS outside of a long-term, mutually monogamous relationship with a partner who is HIV-negative.