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Impact on Malaria Morbidity of a Programme Supplying Insecticide Treated Nets in Children Aged Under 2 Years in Tanzania: Community Cross Sectional Study.

Abdulla, S., Schellenberg, J. A., Nathan, R., Mukasa, O., Marchant, T., Smith, T., Tanner, M. and Lengeler, C. (2001) Impact on Malaria Morbidity of a Programme Supplying Insecticide Treated Nets in Children Aged Under 2 Years in Tanzania: Community Cross Sectional Study. BMJ (Clinical research ed.), 322 (7281). pp. 270-3. ISSN 0959-8138

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Abstract

To assess the impact of a social marketing programme for distributing nets treated with insecticide on malarial parasitaemia and anaemia in very young children in an area of high malaria transmission. Community cross sectional study. Annual, cross sectional data were collected at the beginning of the social marketing campaign (1997) and the subsequent two years. Net ownership and other risk and confounding factors were assessed with a questionnaire. Blood samples were taken from the children to assess prevalence of parasitaemia and haemoglobin levels. Setting: 18 villages in the Kilombero and Ulanga districts of southwestern Tanzania. random sample of children aged under 2 years. The presence of any parasitaemia in the peripheral blood sample and the presence of anaemia (classified as a haemoglobin level of <80 g/l). Ownership of nets increased rapidly (treated or not treated nets: from 58% to 83%; treated nets: from 10% to 61%). The mean haemoglobin level rose from 80 g/l to 89 g/l in the study children in the successive surveys. Overall, the prevalence of anaemia in the study population decreased from 49% to 26% in the two years studied. Treated nets had a protective efficacy of 62% (95% confidence interval 38% to 77%) on the prevalence of parasitaemia and of 63% (27% to 82%) on anaemia. These results show that nets treated with insecticide have a substantial impact on morbidity when distributed in a public health setting.

Item Type: Article
Keywords: Malaria;Morbidity;Parasitaemia;Anaemia;Insecticide Treated Nets,Tanzania
Subjects: Malaria > Surveillance, monitoring, evaluation
Divisions: Ifakara Health Institute > Interventions
Depositing User: Mr Joseph Madata
Date Deposited: 23 Oct 2012 09:16
Last Modified: 23 Oct 2012 09:16
URI: http://ihi.eprints.org/id/eprint/763

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