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A systematic review of economic evaluations of population-based sodium reduction interventions

Author

Listed:
  • Silvia F Hope
  • Jacqui Webster
  • Kathy Trieu
  • Arti Pillay
  • Merina Ieremia
  • Colin Bell
  • Wendy Snowdon
  • Bruce Neal
  • Marj Moodie

Abstract

Objective: To summarise evidence describing the cost-effectiveness of population-based interventions targeting sodium reduction. Methods: A systematic search of published and grey literature databases and websites was conducted using specified key words. Characteristics of identified economic evaluations were recorded, and included studies were appraised for reporting quality using the Consolidated Health Economic Evaluation Reporting Standards (CHEERS) checklist. Results: Twenty studies met the study inclusion criteria and received a full paper review. Fourteen studies were identified as full economic evaluations in that they included both costs and benefits associated with an intervention measured against a comparator. Most studies were modelling exercises based on scenarios for achieving salt reduction and assumed effects on health outcomes. All 14 studies concluded that their specified intervention(s) targeting reductions in population sodium consumption were cost-effective, and in the majority of cases, were cost saving. Just over half the studies (8/14) were assessed as being of ‘excellent’ reporting quality, five studies fell into the ‘very good’ quality category and one into the ‘good’ category. All of the identified evaluations were based on modelling, whereby inputs for all the key parameters including the effect size were either drawn from published datasets, existing literature or based on expert advice. Conclusion: Despite a clear increase in evaluations of salt reduction programs in recent years, this review identified relatively few economic evaluations of population salt reduction interventions. None of the studies were based on actual implementation of intervention(s) and the associated collection of new empirical data. The studies universally showed that population-based salt reduction strategies are likely to be cost effective or cost saving. However, given the reliance on modelling, there is a need for the effectiveness of new interventions to be evaluated in the field using strong study designs and parallel economic evaluations.

Suggested Citation

  • Silvia F Hope & Jacqui Webster & Kathy Trieu & Arti Pillay & Merina Ieremia & Colin Bell & Wendy Snowdon & Bruce Neal & Marj Moodie, 2017. "A systematic review of economic evaluations of population-based sodium reduction interventions," PLOS ONE, Public Library of Science, vol. 12(3), pages 1-22, March.
  • Handle: RePEc:plo:pone00:0173600
    DOI: 10.1371/journal.pone.0173600
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    References listed on IDEAS

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    1. Don Husereau & Michael Drummond & Stavros Petrou & Chris Carswell & David Moher & Dan Greenberg & Federico Augustovski & Andrew Briggs & Josephine Mauskopf & Elizabeth Loder, 2013. "Consolidated Health Economic Evaluation Reporting Standards (CHEERS) Statement," PharmacoEconomics, Springer, vol. 31(5), pages 361-367, May.
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    1. Emalie Sparks & Katherine Paterson & Joseph Alvin Santos & Kathy Trieu & Nerida Hinge & Len Tarivonda & Wendy Snowdon & Claire Johnson & Jacqui Webster, 2019. "Salt-Related Knowledge, Attitudes, and Behaviors on Efate Island, Vanuatu," IJERPH, MDPI, vol. 16(6), pages 1-12, March.
    2. Grace X. Ma & Lin Zhu & Steven E. Shive & Guo Zhang & Yvette R. Senter & Pablo Topete & Brenda Seals & Shumenghui Zhai & MinQi Wang & Yin Tan, 2019. "The Evaluation of IDEAL-REACH Program to Improve Nutrition among Asian American Community Members in the Philadelphia Metropolitan Area," IJERPH, MDPI, vol. 16(17), pages 1-18, August.
    3. Marufa Sultana & Abdur Razzaque Sarker & Nausad Ali & Raisul Akram & Lisa Gold, 2019. "Economic evaluation of community acquired pneumonia management strategies: A systematic review of literature," PLOS ONE, Public Library of Science, vol. 14(10), pages 1-21, October.
    4. Taylor-Jade Woods & Fisaha Tesfay & Peter Speck & Billingsley Kaambwa, 2020. "Economic evaluations considering costs and outcomes of diabetic foot ulcer infections: A systematic review," PLOS ONE, Public Library of Science, vol. 15(4), pages 1-16, April.

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