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Publications

Socioeconomic development as an intervention against malaria: a systematic review and meta-analysis

Future Health Systems

Lucy S Tusting , Barbara Willey , Henry Lucas , John Thompson , Hmooda T Kafy , Richard Smith , Steve W Lindsay (2013) Socioeconomic development as an intervention against malaria: a systematic review and meta-analysis The Lancet, Volume 382, Issue 9896, 14–20 September 2013, Pages 963–972

Abstract

Background

Future progress in tackling malaria mortality will probably be hampered by the development of resistance to drugs and insecticides and by the contraction of aid budgets. Historically, control was often achieved without malaria-specific interventions. Our aim was to assess whether socioeconomic development can contribute to malaria control.

Methods

We did a systematic review and meta-analysis to assess whether the risk of malaria in children aged 0–15 years is associated with socioeconomic status. We searched Medline, Web of Science, Embase, the Cochrane Database of Systematic Reviews, the Campbell Library, the Centre for Reviews and Dissemination, Health Systems Evidence, and the Evidence for Policy and Practice Information and Co-ordinating Centre evidence library for studies published in English between Jan 1, 1980, and July 12, 2011, that measured socioeconomic status and parasitologically confirmed malaria or clinical malaria in children. Unadjusted and adjusted effect estimates were combined in fixed-effects and random-effects meta-analyses, with a subgroup analysis for different measures of socioeconomic status. We used funnel plots and Egger's linear regression to test for publication bias.

Findings

Of 4696 studies reviewed, 20 met the criteria for inclusion in the qualitative analysis, and 15 of these reported the necessary data for inclusion in the meta-analysis. The odds of malaria infection were higher in the poorest children than in the least poor children (unadjusted odds ratio [OR] 1·66, 95% CI 1·35–2·05, p<0·001,I2=68%; adjusted OR 2·06, 1·42–2·97, p<0·001, I2=63%), an effect that was consistent across subgroups.

Interpretation

Although we would not recommend discontinuation of existing malaria control efforts, we believe that increased investment in interventions to support socioeconomic development is warranted, since such interventions could prove highly effective and sustainable against malaria in the long term.