Willingness to use and distribute HIV self-testing kits among people who inject drugs in the San Diego–Tijuana border region

Table 1 Characteristics of HIV-negative PWID in the San Diego–Tijuana border region (N = 539)

Individual characteristics (N = 539)	n	%
Socio-demographics
Age (in years)	Mean = 43.25	SD = 10.80
Identifies as Hispanic/Latinx/Mexican	389	72.2
Assigned male sex at birth	403	74.8
Years of education	Mean = 9.86	SD = 3.43
San Diego resident	370	68.7
Homeless (past 6 months)	249	46.2
HIV testing history
Lifetime	396	73.9
Past 12 months	180	34.5
Substance use and injection behaviors (past 6 months)
Hazardous alcohol consumption^a	103	19.1
Polydrug use^b	414	78.0
Injected drugs multiple times daily	370	68.7
Used a syringe that you knew/suspected had been used before	277	51.4
Sexual behaviors (past 6 months)
Number of sexual partners	Mean = 5.1	SD = 44.5
Any vaginal or anal intercourse	294	54.7
Any transactional sex^c	64	11.9
Any alcohol or drug use before or during sex	281	52.2
Perceived risk of HIV
More likely to get HIV than other PWID in this city	154	28.8
PrEP
Previously aware of PrEP	94	17.4
Interested in using any type of PrEP (oral, injectable, or vaginal)	457	84.9

Social network characteristics (N = 366)	Mean	SD
Network size	3.22	2.13
Network age (in years)	40.32	10.14
Gender Identity
Proportion of network that identifies as male	0.71	0.34
Proportion of network that identifies as female	0.28	0.33
Duration of network relationships (in years)	8.40	10.06
Closeness
Proportion of network with whom they are very close	0.40	0.39
Place of residence
Proportion of network that lives in San Diego	0.44	0.48
Proportion of network that lives in Tijuana	0.54	0.48
Housing
Proportion of network that has ever been homeless^d	0.58	0.44
History of detention or arrest
Proportion of network that has ever been detained or arrested	0.56	0.44
Sexual intercourse (past 6 months)
Proportion of network with whom they had vaginal or anal intercourse	0.13	0.24
Drug use behaviors
Proportion of network that uses drugs every day	0.65	0.41
Proportion of network that injects drugs	0.58	0.42
Proportion of network with whom they share injection equipment	0.30	0.40
Proportion of network that offered to share/encouraged them to use drugs	0.40	0.42
Drug risk communication
Proportion of network that has ever encouraged them to stop using drugs	0.33	0.41
Proportion of network that has ever encouraged them to stop injecting drugs	0.31	0.40

PrEP Pre-exposure prophylaxis; PWID People who inject drugs; SD Standard deviation
^aAlcohol Use Disorders Identification Test [AUDIT-C] score ≥ 4 for men and ≥ 3 for women
^bPolydrug use = used ≥ 2 of the following drugs: heroin, cocaine, methamphetamine, fentanyl, PCP/angel dust, ecstasy
^cTransactional sex = received something you needed (such as money, drugs, alcohol, shelter, food transportation, or protection) in exchange for sex
^dHomeless = ever lived on the street, in a shelter, in a single room occupancy hotel, temporarily with friends/relatives, in a car, or squatted

ISSN: 1477-7517