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01.12.2012 | Research | Ausgabe 1/2012 Open Access

Malaria Journal 1/2012

Evaluation of a national universal coverage campaign of long-lasting insecticidal nets in a rural district in north-west Tanzania

Zeitschrift:
Malaria Journal > Ausgabe 1/2012
Autoren:
Philippa A West, Natacha Protopopoff, Mark W Rowland, Matthew J Kirby, Richard M Oxborough, Franklin W Mosha, Robert Malima, Immo Kleinschmidt
Wichtige Hinweise

Electronic supplementary material

The online version of this article (doi:10.​1186/​1475-2875-11-273) contains supplementary material, which is available to authorized users.

Competing interests

The authors declare that they have no competing interests.

Authors’ contributions

PW analysed the data, drafted the paper and contributed to the data collection and study design. NP provided crucial input into the data analysis and writing the manuscript and contributed to the study design and data collection. IK provided major input into the data analysis and writing the manuscript and contributed to the study design. MR contributed to the study design and improved the manuscript. MK and RO contributed to the overall project study design and provided comments on the manuscript. RM and FM contributed to the overall project study design. All authors read and approved the final manuscript.

Abstract

Background

Insecticide-treated nets (ITN) are one of the most effective measures for preventing malaria. Mass distribution campaigns are being used to rapidly increase net coverage in at-risk populations. This study had two purposes: to evaluate the impact of a universal coverage campaign (UCC) of long-lasting insecticidal nets (LLINs) on LLIN ownership and usage, and to identify factors that may be associated with inadequate coverage.

Methods

In 2011 two cross-sectional household surveys were conducted in 50 clusters in Muleba district, north-west Tanzania. Prior to the UCC 3,246 households were surveyed and 2,499 afterwards. Data on bed net ownership and usage, demographics of household members and household characteristics including factors related to socio-economic status were gathered, using an adapted version of the standard Malaria Indicator Survey. Specific questions relating to the UCC process were asked.

Results

The proportion of households with at least one ITN increased from 62.6% (95% Confidence Interval (CI) = 60.9-64.2) before the UCC to 90.8% (95% CI = 89.0-92.3) afterwards. ITN usage in all residents rose from 40.8% to 55.7%. After the UCC 58.4% (95% CI = 54.7-62.1) of households had sufficient ITNs to cover all their sleeping places. Households with children under five years (OR = 2.4, 95% CI = 1.9-2.9) and small households (OR = 1.9, 95% CI = 1.5-2.4) were most likely to reach universal coverage. Poverty was not associated with net coverage. Eighty percent of households surveyed received LLINs from the campaign.

Conclusions

The UCC in Muleba district of Tanzania was equitable, greatly improving LLIN ownership and, more moderately, usage. However, the goal of universal coverage in terms of the adequate provision of nets was not achieved. Multiple, continuous delivery systems and education activities are required to maintain and improve bed net ownership and usage.
Zusatzmaterial
Authors’ original file for figure 1
12936_2012_2203_MOESM1_ESM.pdf
Authors’ original file for figure 2
12936_2012_2203_MOESM2_ESM.pdf
Literatur
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