Table 2.
Participant characteristics, chemsex-related behaviors, preventive practices, and app usability evaluation
| Total N = 20 | |
|---|---|
| N (%) | |
| Baseline | |
| Sociodemographic characteristics | |
| Age < 35 (vs. ≥ 35) | 7 (35.0) |
| Education: bachelor’s degree or higher | 16 (80.0) |
| Employed | 18 (90.0) |
| Type of substance used for chemsex | |
| Methamphetamine | 19 (95.0) |
| GHB and GBL | 11 (55.0) |
| MDMA | 4 (20.0) |
| Viagra | 14 (70.0) |
| Alkyl nitrites (Rush, poppers) | 11 (55.0) |
| Sedative | 4 (20.0) |
| Sexual behaviors | |
| Having a sexual partner living with HIV in past 3 months | 9 (45.0) |
| Numbers of male sexual partners in the past 3 months ≥ 6 | 6 (30.0) |
| CLAI in past 3 months | 19 (95.0) |
| Self-reported STI in the lifetime (any kind)1 | 7 (35.0) |
| Preventive behaviors | |
| HIV status and PrEP use | |
| HIV negative not on PrEP | 3 (15.0) |
| HIV negative on PrEP | 6 (30.0) |
| Living with HIV | 11 (55.0) |
| Mpox vaccination uptake | 14 (70.0) |
| HPV vaccination uptake | 13 (65.0) |
| Doxy-PEP use experience | 2 (10.0) |
| Chemsex services utilization in the past three months | |
| Chemsex recovery therapy groups or counseling | 9 (45.0) |
| Mental health clinic/hospital or rehab center | 9 (45.0) |
| Chemsex care programs affiliated with NGO | 4 (20.0) |
| Needle Syringe Program | 2 (10.0) |
| Self-efficacy for sexual safety2 | 21.30 (7.73) |
| Sexual satisfaction2 | 4.48 (1.81) |
| One-month follow-up | |
| mHealth app usability2 | 2.14 (1.15) |
GHB gamma-hydroxybuturate, GBL gamma-butyrolactone, MDMA 3,4-methylenedioxymethamphetamine, CLAI condomless anal intercourse, STI sexually transmitted infection, HIV human immunodeficiency virus, PrEP pre-exposure prophylaxis, HPV human papillomavirus, Doxy-PEP postexposure prophylaxis with doxycycline, NGO nongovernmental organization
1STI includes gonorrhea, syphilis, genital warts, genital herpes, amoebic colitis, chlamydia, shigellosis, and hepatitis virus infection (including type A, B, and C virus)
2Data are presented as mean and standard deviation