Table 2:
Univariable and multivariable regressions predicting awareness of, current use of, or intention to use PrEP among a regional sample of Latin American GSN app users in 2018–2019
| Variable | Awareness of PrEP n=718 | Current Use of PrEP n=518 a | Intention to Use PrEP n=489 a | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yes n (%) | No n (%) | OR [95% CI] | aOR [95% CI] | Yes n (%) | No n (%) | OR [95% CI] | aOR [95% CI] | Agree n (%) | Do Not Agree n (%) | OR [95% CI] | aOR [95% CI] | |
| Age d | ||||||||||||
| 18–25 | 118 (62.4) | 71 (37.6) | 0.54 [0.38–0.76] | 0.67 [0.46–0.97] | 5 (4.2) | 113 (95.8) | 0.69 [0.26–1.86] | 0.70 [0.23–2.07] | 36 (31.9) | 77 (68.1) | 0.99 [0.63–1.55] | 1.05 [0.66–1.69] |
| 26+ | 400 (75.6) | 129 (24.4) | Ref. | Ref. | 24 (6.0) | 376 (94.0) | Ref. | Ref. | 121 (32.2) | 255 (67.8) | Ref. | Ref. |
| Country PrEP policy e | ||||||||||||
| Partial/full adoption | 352 (79.1) | 93 (20.9) | 2.44 [1.75–3.41] | 2.20 [1.56–3.12] | 20 (5.7) | 332 (94.3) | 1.05 [0.47–2.36] | 0.71 [0.28–1.78] | 114 (34.3) | 218 (65.7) | 1.39 [0.91–2.10] | 1.33 [0.86–2.06] |
| No policy | 166 (60.8) | 107 (39.2) | Ref. | Ref. | 9 (5.4) | 157 (94.6) | Ref. | Ref. | 43 (27.4) | 114 (72.6) | Ref. | Ref. |
| City population size f | ||||||||||||
| ≥ 500,000 | 442 (74.4) | 152 (25.6) | 2.04 [1.32–3.15] | 1.96 [1.25–3.07] | 23 (5.2) | 419 (94.8) | 0.60 [0.22–1.65] | 0.42 [0.13–1.33] | 130 (31.0) | 289 (69.0) | 0.73 [0.41–1.30] | 0.66 [0.36–1.20] |
| < 500,000 | 60 (58.8) | 42 (41.2) | Ref. | Ref. | 5 (8.3) | 55 (91.7) | Ref. | Ref. | 21 (38.2) | 34 (61.8) | Ref. | Ref. |
| PrEP eligible b,g | ||||||||||||
| Yes | 75 (82.4) | 16 (17.6) | 1.95 [1.10–3.43] | 1.44 [0.80–2.60] | 19 (25.3) | 56 (74.7) | 14.69 [6.50–33.18] | 13.84 [5.65–33.91] | 29 (51.8) | 27 (48.2) | 2.56 [1.46–4.50] | 2.26 [1.26–4.07] |
| No | 443 (70.7) | 184 (29.3) | Ref. | Ref. | 10 (2.3) | 433 (97.7) | Ref. | Ref. | 128 (29.6) | 305 (70.4) | Ref. | Ref. |
| Recent STI testing c,h | ||||||||||||
| Yes | 354 (74.8) | 119 (25.2) | 1.47 [1.05–2.06] | 1.24 [0.86–1.80] | 26 (7.3) | 328 (92.7) | 4.25 [1.27–14.26] | 1.66 [0.44–6.20] | 116 (35.4) | 212 (64.6) | 1.60 [1.05–2.44] | 1.58 [1.01–2.48] |
| No | 164 (66.9) | 81 (33.1) | Ref. | Ref. | 3 (1.8) | 161 (98.2) | Ref. | Ref. | 41 (25.5) | 120 (74.5) | Ref. | Ref. |
ORs and aORs had a p value of < 0.05
Current use of PrEP includes only those who had heard or PrEP; intention to use PrEP includes only those who had heard of PrEP and were not currently taking PrEP
Those reporting PEP use and/or STI diagnosis in the previous 12 months were categorized as PrEP-eligible
Previous 12 months
Multivariable models for age included the following confounders: country PrEP policy, city population size, and PrEP eligibility
Multivariable models for country PrEP policy included the following confounders: age, city population size, recent STI testing, chemsex, and doctor as source of PrEP information
Multivariable models for city population size included the following confounders: age, country PrEP policy, recent STI testing, PrEP eligibility, chemsex, and doctor as source of PrEP information
Multivariable models for PrEP eligible included the following confounders: age, city population size, country PrEP policy, recent STI testing, chemsex, and doctor as source of PrEP information
Multivariable models for recent STI testing included the following confounders: age, city population size, country PrEP policy, HIV status, PrEP eligibility, chemsex, and doctor as source of PrEP information
Abbreviations: PrEP (pre-exposure prophylaxis), GSN (geosocial networking), OR (odds ratio), aOR (adjusted odds ratio), CI (confidence interval), STI (sexually transmitted infection), Ref. (reference variable)