Table 4.
Multivariable multinominal logistic regression models examining characteristics associated with latent class memberships (reference group: negligible app users).
| Variable | Gay app users | Poly app users | Low-cost app users | |||||||||||
|
|
aRRRa (95% CI) | RIb (%) | aRRR (95% CI) | RI (%) | aRRR (95% CI) | RI (%) | ||||||||
| Monthly income | ||||||||||||||
|
|
<VND 10 million (US $382.21) | 0.50 (0.23-1.10) | 1.27 | 1.45 (0.61-3.44) | 0.08 | 1.57 (1.12-2.19) c | 1.32 | |||||||
|
|
≥VND 10 million (US $382.21) | Reference | —d | Reference | — | Reference | — | |||||||
| Casual sex partners (previous 12 mo) | ||||||||||||||
|
|
Yes | 7.66 (2.49-23.6) | 1.36 | 4.42 (1.40-13.9) | 0.03 | 3.33 (2.25-4.92) | 2.73e | |||||||
|
|
No | Reference | — | Reference | — | Reference | — | |||||||
| Male sex worke r partner (p revious 12 mo ) | ||||||||||||||
|
|
Yes | 1.78 (0.48-6.65) | 0.24 | 14.9 (4.80-46.5) | 7.88e | 1.68 (0.57-4.98) | 0.05 | |||||||
|
|
No | Reference | — | Reference | — | Reference | — | |||||||
| Male client sex partner (p revious 12 mo ) | ||||||||||||||
|
|
Yes | 2.68 (0.95-7.55) | 0.59 | 3.88 (1.34-11.3) | 1.97 | 2.39 (1.16-4.94) | 0.23 | |||||||
|
|
No | Reference | — | Reference | — | Reference | — | |||||||
| Number of male sex partners (previous 12 mo) | 1.01 (1.00-1.02) | 3.49 | 1.02 (1.01-1.03) | 5.32 | 0.98 (0.97-1.00) | 1.34 | ||||||||
| Ever had group sex | ||||||||||||||
|
|
>10 times | 3.36 (1.67-6.74) | 8.50 | 2.36 (0.97-5.78) | 1.37 | 0.63 (0.37-1.09) | 1.44 | |||||||
|
|
<10 times | Reference | — | Reference | — | Reference | — | |||||||
| Hazardous alcohol use | ||||||||||||||
|
|
Yes | 2.74 (1.43-5.26) | 0.87 | 1.74 (0.79-3.85) | 0.22 | 2.35 (1.66-3.32) | 1.71 | |||||||
|
|
No | Reference | — | Reference | — | Reference | — | |||||||
| Ever engaged in sexualized illicit drug use | ||||||||||||||
|
|
Yes | 14.4 (7.38-28.1) | 16.35e | 5.78 (2.49-13.4) | 1.96 | 1.16 (0.68-1.97) | 0.49 | |||||||
|
|
No | Reference | — | Reference | — | Reference | — | |||||||
| Social support | 1.19 (0.80-1.79) | 1.23 | 0.71 (0.45-1.13) | 0.28 | 0.83 (0.69-0.99) | 1.74 | ||||||||
| Perceived HIV stigma | 0.72 (0.60-0.86) | 2.95 | 0.98 (0.86-1.12) | 0.07 | 1.05 (1.00-1.10) | 1.56 | ||||||||
aaRRR: adjusted relative risk ratio.
bRI: relative importance weight percentage—proportion of R2 contributed by each covariate. A higher percentage indicates a higher contribution to explaining the differences in patterns of online sex seeking.
cItalicized values are significant at P<.05.
dNot applicable.
eHighest relative importance weight percentage among the latent class subgroup.