Projecting HIV prevalence among individuals aged 15-49 years in Bhutan using Holt’s double exponential smoothing model
Keywords:
Exponential smoothing, Forecasting, HIV prevalenceAbstract
This study uses annual time series data of HIV prevalence among individuals aged 15-49 years for Bhutan from 1990 to 2020 to predict future trends of HIV prevalence over the period 2021 to 2030. The study utilizes Holt’s double exponential smoothing model. The optimal values of smoothing constants α and β are 0.9 and 0.1 respectively based on minimum MSE. The results of the study indicate that annual HIV prevalence among individuals aged 15-49 years will generally decline over the out of sample period. Therefore, policymakers must improve HIV case detection among key populations and implement relevant HIV preventive interventions recommended by the World Health Organization (WHO).
References
Becasen J.S., Denard C.L., Mullins M.M., Higa DH & Sipe TA (2019). Estimating the Prevalence of
HIV and Sexual Behaviors Among the US Transgender Population: A Systematic Review and MetaAnalysis, 2006– 2017. Am J Public Health 2019; 109(1): e1–e8.
https://doi.org/10.2105/AJPH.2018.304727 PMID: 30496000[2] Khandu L., Tobgay T & McFarland W (2021). Social, Cultural and Economic determinants of
HIV/AIDS: A community case report of Bhutan. Social Determinants of Health 2021; 6:e28
https://doi.org/10.22037/sdh. v6i1.31121
Khandu L., Kinley K., Norbu Y.C., Tobgay T., Tsheten T & Gyeltshen T (2022) Population size
estimation of transgender womenand men in Bhutan. PLoS ONE 17(10): e0271853.https://doi.
org/10.1371/journal.pone.0271853
National HIV, AIDS and STIs Control Program, Bhutan. Sexual Behaviors and Networks in
Thimphu: A Rapid Assessment. Bangkok, Thailand: UNAIDS; 2010. Accessed on 5 March 2022 at
https://www. aidsdatahub.org/sites/default/files/resource/sexual-behaviors-networks-thimphubhutan-rapidassessment.pdf.
National HIV, AIDS and STIs Control Programme, Bhutan. Formative Assessment on the Feasibility
of an Integrated Biological and Behavioral Survey among Key and Vulnerable Populations in Bhutan
Bangkok, Thailand: UNAIDS; 2015. Accessed on 5 March 2022 at
https://www.aidsdatahub.org/ resource/formative-assessment-feasibility-of-ibbs-key-and-vulnerablepopulations-bhutan.
National HIV, AIDS and STIs Control Programme, Bhutan. Integrated Biological and Behavioral
Surveillance (IBBS) Surveys among Vulnerable and Key Populations at Higher Risk in Bhutan.
Thimphu, Bhutan: Ministry of Health; 2016. Accessed on 5 March 2022 at
https://www.moh.gov.bt/wp-content/ uploads/ict-files/2021/01/IBBS_2015_Report_HIV-AIDS.pdf.
National HIV, AIDS and STIs Control Program, Bhutan. HIV/AIDS Behaviour Survey among the
General Population in Bhutan, 2006. Bangkok, Thailand: UNAIDS; 2008. Accessed on 5 March
at https://www.aidsdatahub.org/resource/hiv-aids-bss-bhutan-2006-technical-report
Ministry of Health. Global AIDS Response Report for Bhutan. Bangkok: UNAIDS; 2014.
UNAIDS (2018). Transactional sex and HIV risk: from analysis to action. UNAIDS [Internet].
Geneva, Switzerland: UNAIDS; 2018; 1–42 [cited 29 January 2021]. Available from:
https://www.unaids.org/sites/default/files/m edia_asset/transactional-sex-and-hivrisk_en.pdf
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