Application of the network scale-up method to estimate the sizes of key populations for HIV in Singapore using online surveys.
J Int AIDS Soc
; 26(3): e25973, 2023 03.
Article
en En
| MEDLINE
| ID: mdl-36919979
ABSTRACT
INTRODUCTION:
Singapore lacks robust data on the sizes of the key populations that are most at risk for HIV. Using the network scale-up method for hidden or hard-to-reach populations, we estimate the sizes of five key populations-male clients of female sex workers (MCFSW), men who have sex with men (MSM), female sex workers (FSW), people who inject drugs (PWID) and transgender people-and profile the ages and ethnicities of respondents with the high-risk contacts they report knowing.METHODS:
We conducted a cross-sectional online survey between March and May 2019 (n = 2802) using a network scale-up instrument previously developed for Singapore. Participants were recruited using an existing panel and online advertising, and the sample reweighted by age, sex, ethnicity and education attained to represent the general adult population. We built a Bayesian hierarchical model to estimate the sizes of the five key populations for HIV in Singapore.RESULTS:
After adjustment, the sizes of the at-risk populations are estimated to be 76,800 (95% credible interval [CI] 64,200-91,800) MCFSW; 139,000 (95% CI 120,000-160,000) MSM; 8030 (95% CI 3980-16,200) FSW; 3470 (95% CI 1540-7830) PWID and 18,000 (95% CI 14,000-23,200) transgender people. Generally, men reported knowing more people in all the high-risk groups; older people reported knowing more MCFSW, FSW and transgender people; and younger people reported knowing more MSM. There was a bimodal effect of age on those who reported knowing more PWIDs people in their 20s and 60s reported more contacts.CONCLUSIONS:
This study demonstrates that a size estimation study of hidden populations is quickly and efficiently scalable through using online surveys in a socially conservative society, like Singapore, where key populations are stigmatized or criminalized. The approach may be suitable in other countries where stigma is prevalent and where barriers to surveillance and data collection are numerous.Palabras clave
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Infecciones por VIH
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Abuso de Sustancias por Vía Intravenosa
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Trabajadores Sexuales
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Minorías Sexuales y de Género
Tipo de estudio:
Observational_studies
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Prevalence_studies
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Prognostic_studies
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Risk_factors_studies
Límite:
Adult
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Aged
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Female
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Humans
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Male
País/Región como asunto:
Asia
Idioma:
En
Revista:
J Int AIDS Soc
Asunto de la revista:
SINDROME DA IMUNODEFICIENCIA ADQUIRIDA (AIDS)
Año:
2023
Tipo del documento:
Article
País de afiliación:
Singapur