Publications Scientifiques

[ Article ] Interest of LQAS method in a survey of HTLV-I infection in Benin (West Africa)

Date de soumission: 23-02-2017
Année de Publication: 2002
Entité/Laboratoire Laboratoire Épidémiologisque des Maladies Chroniques et Neurologiques (LEMACEN)
Document type : Article
Discipline(s) : Santé Publiques, Services médicaux & soins de santé
Titre Interest of LQAS method in a survey of HTLV-I infection in Benin (West Africa)
Auteurs Dismand Houinato [1], Preux Pierre-Marie [2], Charriere Bénédicte [3], Massit Bruno [4], Avodé Gilbert [5], Denis François [6], Dumas Michel [7], Boutros-Toni Fernand [8], Salamon Roger [9],
Journal: Journal of Clinical Epidemiology
Catégorie Journal: Internationale
Impact factor: 0
Volume Journal: 55
Resume HTLV-I is heterogeneously distributed in Sub-Saharan Africa. Traditional survey methods as cluster sampling could provide information for a country or region of interest. However, they cannot identify small areas with higher prevalences of infection to help in the health policy planning. Identification of such areas could be done by a Lot Quality Assurance Sampling (LQAS) method, which is currently used in industry to identify a poor performance in assembly lines. The LQAS method was used in Atacora (Northern Benin) between March and May 1998 to identify areas with a HTLV-I seroprevalence higher than 4%. Sixty-five subjects were randomly selected in each of 36 communes (lots) of this department. Lots were classified as unacceptable when the sample contained at least one positive subject. The LQAS method identified 25 (69.4 %) communes with a prevalence higher than 4%. Using stratified sampling theory, the overall HTLV-I seroprevalence was 4.5% (95% CI: 3.6-5.4%). These data show the interest of LQAS method application under field conditions to detect clusters of infection.
Mots clés Interest of HTLV-I infection in Benin (West Africa)
Pages 192 - 196

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