Economic evaluation of a group randomized controlled trial on healthy eating and physical activity in afterschool programs

Michael W. Beets, Keith Brazendale, R. Glenn Weaver, Gabrielle M. Turner-McGrievy, Jennifer Huberty, Justin B. Moore, M. Mahmud Khan, Dianne S. Ward

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


Limited information is available on the cost-effectiveness of interventions to achieve healthy eating and physical activity policies in afterschool programs (ASPs). The objective of this study is to present the costs associated with a comprehensive intervention in ASPs. Intervention delivery inputs (IDIs) associated with a group randomized delayed treatment controlled trial involving 20 ASPs serving > 1700 children (5–12 yrs) were catalogued prospectively across 2-years (2014–2015). IDIs, analyzed 2015, were expressed as increases in per-child per-week enrollment fees based on a 34-week school year in US$. Total IDIs for year-1 were $15,058 (+$0.58/child/week enrollment fee). In year-2, total costs were $13,828 (+$0.52/child/week) for the delayed group and $7916 (+$0.30/child/week) for the immediate group, respectively. Site leader and staff hourly wages represented 11–17% and 45–46% of initial training costs; travel and trainer wages represented 31–42% and 50–58% of booster costs. Overall, a 1% increase in boys and girls, separately, accumulating 30 mins/d of moderate-to-vigorous physical activity ranged from $0.05 to $0.26/child/week, while a one-day increase in serving a fruit/vegetable or water, or not serving sugar-added foods/beverages ranged from $0.16 to $0.87/child/week. Costs associated with implementing the intervention were minimal. Additional efforts to reduce costs and improve intervention effectiveness are necessary.

Original languageEnglish (US)
Pages (from-to)60-65
Number of pages6
JournalPreventive Medicine
StatePublished - Jan 2018
Externally publishedYes


  • Children
  • Cost
  • Intervention
  • Obesity
  • School
  • Willingness to pay

ASJC Scopus subject areas

  • Public Health, Environmental and Occupational Health
  • Epidemiology


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