Cited by 237Malaria Research and ControlGlobal Maternal and Child HealthChild Nutrition and Water Access

Effect of expanded insecticide-treated bednet coverage on child survival in rural Kenya: a longitudinal study

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Fegan, Greg W, Noor, Abdisalan M, Akhwale, Willis S, Cousens, Simon, Snow, Robert W·2007·The Lancet

Abstract

Background The potential of insecticide-treated bednets (ITNs) to contribute to child survival has been well documented in randomised controlled trials. ITN coverage has increased rapidly in Kenya from 7% in 2004 to 67% in 2006. We aimed to assess the extent to which this investment has led to improvements in child survival.Methods A dynamic cohort of about 3500 children aged 1-59 months were enumerated three times at yearly intervals in 72 rural clusters located in four districts of Kenya. The effect of ITN use on mortality was assessed with Poisson regression to take account of potential effect-modifying and confounding covariates.Findings 100 children died over 2 years. Overall mortality rates were much the same in the first and second years of the study (14.5 per 1000 person-years in the first year and 15.4 per 1000 person-years in the second). After adjustment for age, time period, and a number of other possible confounding variables, ITN use was associated with a 44% reduction in mortality (mortality rate ratio 0.56, 95% CI 0.33-0.96; p=0.04). This level of protection corresponds to about seven deaths averted for every 1000 ITNs distributed.Interpretation A combined approach of social marketing followed by mass free distribution of ITNs translated into child survival effects that are comparable with those seen in previous randomised controlled trials.

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  • ITNs have been shown convincingly to cause substantial reductions in all-cause child mortality under both experimental and operational conditions.

    “ITNs have been shown convincingly to cause substantial reductions in all-cause child mortality, under both experimental (Lengeler 2004) and operational conditions (Armstrong Schellenberg et al. 2001; Fegan et al. 2007).”

    From Global Status of DDT and Its Alternatives for Use in Vector Control to Prevent Disease (2009) · cites this paper as Fegan et al. 2007

    The Results report that, under operational conditions in rural Kenya, ITN use was associated with a 44% reduction in child mortality after adjustment. The Discussion says the authors were confident of a substantial effect on child survival, but also acknowledges possible unmeasured confounding and exposure bias. Thus the study supports a substantial operational benefit, not the unqualified claim that it convincingly established causation; the experimental finding is cited to a different source. (LLM, conf=0.83)

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Authors
Fegan, G. W., Noor, A. M., Akhwale, W. S., Cousens, S., & Snow, R. W.
Affiliations
  • Kenya Medical Research Institute (KE)
  • Ministry of Health (KE)
  • London School of Hygiene & Tropical Medicine (GB)
  • John Radcliffe Hospital (GB)
Corresponding author
Fegan, Greg W
Venue
The Lancet
Publisher
Elsevier BV
Published
2007-09
Volume
370
Issue
9592
Pages
1035-1039
ISSN
  • 0099-5355 (ISSN-L)
  • 0140-6736
OpenAlex
W2143229710
Cited by
237
References
17
Citations by year
2026: 2 · 2025: 1 · 2024: 4 · 2023: 2 · 2022: 4 · 2021: 5 · 2020: 9 · 2019: 5 · 2018: 8 · 2017: 7 · 2016: 7 · 2015: 15 · 2014: 10 · 2013: 18 · 2012: 22
FWCI
31.23
Type
journal article
Language
en
Open access
Locations
  • The Lancet (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • LSHTM Research Online (London School of Hygiene and Tropical Medicine) (acceptedVersion)
Funders
  • Wellcome Trust (#079081, 058922, 079080, 081829)
  • Government of the Republic of Kenya
  • Department for International Development
Topics
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Malaria Research and Control
  • Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Global Maternal and Child Health
  • Health Sciences › Nursing › Nutrition and Dietetics › Child Nutrition and Water Access
Keywords
insecticide-treated bednets, child mortality, child survival, malaria prevention, social marketing, rural Kenya, mortality rate ratio, mortality averted
MeSH terms
Adult, Bedding and Linens, Child, Preschool, Female, Humans, Infant, Insecticides, Kenya, Longitudinal Studies, Malaria, Male, Rural Health, Social Class, Poisson Distribution, Child Mortality

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