The Spectrum projection package: improvements in estimating incidence by age and sex, mother-to-child transmission, HIV progression in children and double orphans

被引:65
作者
Stover, J. [1 ]
Johnson, P. [2 ]
Hallett, T. [3 ]
Marston, M. [4 ]
Becquet, R. [5 ,6 ]
Timaeus, I. M. [4 ]
机构
[1] Futures Inst, Glastonbury, CT 06033 USA
[2] US Bur Census, Washington, DC 20233 USA
[3] Univ London Imperial Coll Sci Technol & Med, Dept Dis Epidemiol, London, England
[4] London Sch Hyg & Trop Med, Dept Populat Studies, London WC1, England
[5] INSERM, U897, Ctr Rech Epidemiol & Biostat, Bordeaux, France
[6] Univ Victor Segalen Bordeaux 2, ISPED, Bordeaux, France
关键词
PREVALENCE; MORTALITY; BIAS; COUNTRIES; NUMBER; IMPACT; AIDS;
D O I
10.1136/sti.2010.044222
中图分类号
R51 [传染病];
学科分类号
100401 ;
摘要
Background The Spectrum program is used to estimate key HIV indicators from the trends in incidence and prevalence estimated by the Estimation and Projection Package or the Workbook. These indicators include the number of people living with HIV, new infections, AIDS deaths, AIDS orphans, the number of adults and children needing treatment, the need for prevention of mother-to-child transmission and the impact of antiretroviral treatment on survival. The UNAIDS Reference Group on Estimates, Models and Projections regularly reviews new data and information needs, and recommends updates to the methodology and assumptions used in Spectrum. Methods The latest update to Spectrum was used in the 2009 round of global estimates. This update contains new procedures for estimating: the age and sex distribution of adult incidence, new child infections occurring around delivery or through breastfeeding, the survival of children by timing of infection and the number of double orphans.
引用
收藏
页码:II16 / II21
页数:6
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