PMID- 28138799
OWN - NLM
STAT- MEDLINE
DCOM- 20180410
LR  - 20181202
IS  - 1468-2869 (Electronic)
IS  - 1099-3460 (Print)
IS  - 1099-3460 (Linking)
VI  - 94
IP  - 3
DP  - 2017 Jun
TI  - Population Size Estimation of Men Who Have Sex with Men in Ho Chi Minh City and 
      Nghe An Using Social App Multiplier Method.
PG  - 339-349
LID - 10.1007/s11524-016-0123-0 [doi]
AB  - This study aims to estimate the number of men who have sex with men (MSM) in Ho 
      Chi Minh City (HCMC) and Nghe An province, Viet Nam, using a novel method of 
      population size estimation, and to assess the feasibility of the method in 
      implementation. An innovative approach to population size estimation grounded on 
      the principles of the multiplier method, and using social app technology and 
      internet-based surveys was undertaken among MSM in two regions of Viet Nam in 
      2015. Enumeration of active users of popular social apps for MSM in Viet Nam was 
      conducted over 4 weeks. Subsequently, an independent online survey was done using 
      respondent driven sampling. We also conducted interviews with key informants in 
      Nghe An and HCMC on their experience and perceptions of this method and other 
      methods of size estimation. The population of MSM in Nghe An province was 
      estimated to be 1765 [90% CI 1251-3150]. The population of MSM in HCMC was 
      estimated to be 37,238 [90% CI 24,146-81,422]. These estimates correspond to 
      0.17% of the adult male population in Nghe An province [90% CI 0.12-0.30], and 
      1.35% of the adult male population in HCMC [90% CI 0.87-2.95]. Our size estimates 
      of the MSM population (1.35% [90% CI 0.87%-2.95%] of the adult male population in 
      HCMC) fall within current standard practice of estimating 1-3% of adult male 
      population in big cities. Our size estimates of the MSM population (0.17% [90% CI 
      0.12-0.30] of the adult male population in Nghe An province) are lower than the 
      current standard practice of estimating 0.5-1.5% of adult male population in 
      rural provinces. These estimates can provide valuable information for 
      sub-national level HIV prevention program planning and evaluation. Furthermore, 
      we believe that our results help to improve application of this population size 
      estimation method in other regions of Viet Nam.
FAU - Safarnejad, Ali
AU  - Safarnejad A
AUID- ORCID: 0000-0001-8742-5287
AD  - UNAIDS, Hanoi, Viet Nam. ali.safarnejad@gmail.com.
FAU - Nga, Nguyen Thien
AU  - Nga NT
AD  - UNAIDS, Hanoi, Viet Nam.
FAU - Son, Vo Hai
AU  - Son VH
AD  - Vietnam Authority of HIV/AIDS Control (VAAC), Ministry of Health, Hanoi, Viet 
      Nam.
LA  - eng
PT  - Journal Article
PL  - United States
TA  - J Urban Health
JT  - Journal of urban health : bulletin of the New York Academy of Medicine
JID - 9809909
SB  - IM
MH  - Adult
MH  - Cities/*statistics & numerical data
MH  - Humans
MH  - *Internet
MH  - Male
MH  - Middle Aged
MH  - *Population Density
MH  - Population Surveillance/*methods
MH  - Rural Population/*statistics & numerical data
MH  - Sexual and Gender Minorities/*statistics & numerical data
MH  - Surveys and Questionnaires
MH  - Vietnam
MH  - Young Adult
PMC - PMC5481206
OTO - NOTNLM
OT  - HIV AIDS
OT  - HIV surveillance
OT  - Most at-risk populations
OT  - RDS
OT  - Size estimation
OT  - Social network
OT  - Viet Nam
EDAT- 2017/02/01 06:00
MHDA- 2018/04/11 06:00
PMCR- 2018/06/01
CRDT- 2017/02/01 06:00
PHST- 2017/02/01 06:00 [pubmed]
PHST- 2018/04/11 06:00 [medline]
PHST- 2017/02/01 06:00 [entrez]
PHST- 2018/06/01 00:00 [pmc-release]
AID - 10.1007/s11524-016-0123-0 [pii]
AID - 123 [pii]
AID - 10.1007/s11524-016-0123-0 [doi]
PST - ppublish
SO  - J Urban Health. 2017 Jun;94(3):339-349. doi: 10.1007/s11524-016-0123-0.