Forecasting the Number of Human Immunodeficiency Virus Infections in the Korean Population Using the Autoregressive Integrated Moving Average Model
Open Access
- 1 December 2013
- journal article
- Published by Korea Disease Control and Prevention Agency in Osong Public Health and Research Perspectives
- Vol. 4 (6), 358-362
- https://doi.org/10.1016/j.phrp.2013.10.009
Abstract
From the introduction of HIV into the Republic of Korea in 1985 through 2012, 9,410 HIV-infected Koreans have been identified. Since 2000, there has been a sharp increase in newly diagnosed HIV-infected Koreans. It is necessary to estimate the changes in HIV infection to plan budgets and to modify HIV/AIDS prevention policy. We constructed autoregressive integrated moving average (ARIMA) models to forecast the number of HIV infections from 2013 to 2017. HIV infection data from 1985 to 2012 were used to fit ARIMA models. Akaike Information Criterion and Schwartz Bayesian Criterion statistics were used to evaluate the constructed models. Estimation was via the maximum likelihood method. To assess the validity of the proposed models, the mean absolute percentage error (MAPE) between the number of observed and fitted HIV infections from 1985 to 2012 was calculated. Finally, the fitted ARIMA models were used to forecast the number of HIV infections from 2013 to 2017. The fitted number of HIV infections was calculated by optimum ARIMA (2,2,1) model from 1985–2012. The fitted number was similar to the observed number of HIV infections, with a MAPE of 13.7%. The forecasted number of new HIV infections in 2013 was 962 (95% confidence interval (CI): 889–1,036) and in 2017 was 1,111 (95% CI: 805–1,418). The forecasted cumulative number of HIV infections in 2013 was 10,372 (95% CI: 10,308–10,437) and in 2017 was14,724 (95% CI: 13,893–15,555) by ARIMA (1,2,3). Based on the forecast of the number of newly diagnosed HIV infections and the current cumulative number of HIV infections, the cumulative number of HIV-infected Koreans in 2017 would reach about 15,000.Keywords
Funding Information
- Korea Centers for Disease Control and Prevention (4800-4859-304)
This publication has 9 references indexed in Scilit:
- Ten-year trends in HIV prevalence among visitors to public health centers under the National HIV Surveillance System in Korea, 2000 to 2009BMC Public Health, 2012
- Forecasting incidence of hemorrhagic fever with renal syndrome in China using ARIMA modelBMC Infectious Diseases, 2011
- Characteristics of HIV seroprevalence of visitors to public health centers under the national HIV surveillance system in Korea: cross sectional studyBMC Public Health, 2009
- Modelling malaria incidence with environmental dependency in a locality of Sudanese savannah area, MaliMalaria Journal, 2009
- Time Series Analysis of Dengue Incidence in Rio de Janeiro, BrazilThe American Journal of Tropical Medicine and Hygiene, 2008
- [Applications of multiple seasonal autoregressive integrated moving average (ARIMA) model on predictive incidence of tuberculosis].2007
- Herpes Simplex Virus Type 2 Seroprevalence in Korea: Rapid Increase of HSV-2 Seroprevalence in the 30s in the Southern PartJournal of Korean Medical Science, 2007
- Influenza and the Winter Increase in Mortality in the United States, 1959-1999American Journal of Epidemiology, 2004
- Multivariate Markovian modeling of tuberculosis: forecast for the United States.Emerging Infectious Diseases, 2000