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Cost-effectiveness of HIV screening in patients older than 55 years of age.

Abstract：

BACKGROUND:Although HIV infection is more prevalent in people younger than age 45 years, a substantial number of infections occur in older persons. Recent guidelines recommend HIV screening in patients age 13 to 64 years. The cost-effectiveness of HIV screening in patients age 55 to 75 years is uncertain. OBJECTIVE:To examine the costs and benefits of HIV screening in patients age 55 to 75 years. DESIGN:Markov model. DATA SOURCES:Derived from the literature. TARGET POPULATION:Patients age 55 to 75 years with unknown HIV status. TIME HORIZON:Lifetime. PERSPECTIVE:Societal. INTERVENTION:HIV screening program for patients age 55 to 75 years compared with current practice. OUTCOME MEASURES:Life-years, quality-adjusted life-years (QALYs), costs, and incremental cost-effectiveness. RESULTS OF BASE-CASE ANALYSIS:For a 65-year-old patient, HIV screening using traditional counseling costs $55,440 per QALY compared with current practice when the prevalence of HIV was 0.5% and the patient did not have a sexual partner at risk. In sexually active patients, the incremental cost-effectiveness ratio was $30,020 per QALY. At a prevalence of 0.1%, HIV screening cost less than $60,000 per QALY for patients younger than age 75 years with a partner at risk if less costly streamlined counseling is used. RESULTS OF SENSITIVITY ANALYSIS:Cost-effectiveness of HIV screening depended on HIV prevalence, age of the patient, counseling costs, and whether the patient was sexually active. Sensitivity analyses with other variables did not change the results substantially. LIMITATIONS:The effects of age on the toxicity and efficacy of highly active antiretroviral therapy and death from AIDS were uncertain. Sensitivity analyses exploring these variables did not qualitatively affect the results. CONCLUSION:If the tested population has an HIV prevalence of 0.1% or greater, HIV screening in persons from age 55 to 75 years reaches conventional levels of cost-effectiveness when counseling is streamlined and if the screened patient has a partner at risk. Screening patients with advanced age for HIV is economically attractive in many circumstances.

journal_name

Ann Intern Med

journal_title

Annals of internal medicine

authors

Sanders GD,Bayoumi AM,Holodniy M,Owens DK

doi

10.7326/0003-4819-148-12-200806170-00002

subject

Has Abstract

pub_date

2008-06-17 00:00:00

pages

889-903

issue

eissn

0003-4819

issn

1539-3704

pii

148/12/889

journal_volume

148

pub_type

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Cost-effectiveness of HIV screening in patients older than 55 years of age.