PMID- 12471747 OWN - NLM STAT- MEDLINE DCOM- 20021227 LR - 20191210 IS - 0020-2495 (Print) IS - 0020-2495 (Linking) VI - 67 IP - 1-2 DP - 2001 TI - [Identification of communities endemic for urinary bilharziosis by the "Lot Quality Assurance Sampling" method in Madagascar]. PG - 41-5 AB - Reduction of morbidity is the main component in the National Schistosomiasis Control Program in Madagascar. The lot quality assurance sampling (LQAS) method has previously been shown as a useful tool in assessment of immunization coverage. A study was carried in the western part of Madagascar aiming to evaluate the applicability of the method in measuring the level of Schistosoma haematobium endemic level in different communities. Parasitological examination of urine samples from 1,124 children aged 5 to 19 years from 12 different schools by use of filtration technique constituted the reference in determining the prevalence. Three schools were found hyper-endemic (prevalence more than 60%), 5 schools were intermediate-endemic (prevalence between 30 to 59%), and 4 were hypo-endemic (prevalence less than 30%). Those figures indicate a heterogeneous distribution of S. haematobium in the study area. A sampling plan (16.6) was then tested in the same area while other sampling plans were simulated in the laboratory. School teachers randomized under supervision the children to participate in this study and collected urine samples. All sampling plans (16.6), (14.5), (12.4), (10.3), (8.2), (6.1) et (4.0) allowed correct identification of hyper-endemic and hypo-endemic areas. Misclassifications occurred frequently for intermediate-endemic areas. The study confirms that the LQAS method by use of a (16.6) sampling plan constitute a valuable tool for large scale screening of hyper-endemic areas for therapeutic intervention as part of the control program. The study has also shown that school teachers may offer a potential source of manpower locally in such screening operations. FAU - Rabarijaona, L P AU - Rabarijaona LP AD - Institut Pasteur de Madagascar, BP 1274, 101 Antananarivo, Madagascar. FAU - Andriamaroson, B J AU - Andriamaroson BJ FAU - Ravaoalimalala, V E AU - Ravaoalimalala VE FAU - Ravoniarimbinina, P AU - Ravoniarimbinina P FAU - Migliani, R AU - Migliani R LA - fre PT - Journal Article PT - Validation Study TT - Identification des communautes cibles en zone de bilharziose urinaire par la methode de "Lot Quality Assurance Sampling" a Madagascar. PL - Madagascar TA - Arch Inst Pasteur Madagascar JT - Archives de l'Institut Pasteur de Madagascar JID - 7502526 SB - IM MH - Adolescent MH - Child MH - Child, Preschool MH - Endemic Diseases/*statistics & numerical data MH - Female MH - Humans MH - Madagascar/epidemiology MH - Male MH - Mass Screening/*methods/standards MH - Population Surveillance/*methods MH - Prevalence MH - Quality Assurance, Health Care/*methods MH - Sampling Studies MH - Schistosomiasis haematobia/*epidemiology/parasitology/urine MH - School Health Services/*organization & administration MH - Schools MH - Sensitivity and Specificity EDAT- 2002/12/11 04:00 MHDA- 2002/12/28 04:00 CRDT- 2002/12/11 04:00 PHST- 2002/12/11 04:00 [pubmed] PHST- 2002/12/28 04:00 [medline] PHST- 2002/12/11 04:00 [entrez] PST - ppublish SO - Arch Inst Pasteur Madagascar. 2001;67(1-2):41-5.