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Area of Science:

  • Public Health
  • Health Behavior Interventions
  • Health Economics

Background:

  • Scalable interventions are crucial for real-world public health impact.
  • The "Smoke-Free Homes: Some Things are Better Outside" program has demonstrated prior success.
  • Dissemination studies are vital for assessing intervention scalability.

Purpose of the Study:

  • To examine the scalability of the "Smoke-Free Homes" intervention.
  • To analyze effectiveness across subpopulations and identify core effective components.
  • To evaluate the cost-effectiveness of the intervention in a real-world setting.

Main Methods:

  • A dissemination study involving 2,345 households via 2-1-1 call centers.
  • Pre-post design with self-reported outcomes at 2 months postbaseline.
  • Analysis of subpopulation effectiveness, secondary outcomes, and cost-effectiveness.

Main Results:

  • The program was equally effective across various demographics but more so for African Americans, non-smokers, and light smokers.
  • Creating smoke-free homes correlated with smoke-free vehicles, reduced secondhand smoke exposure, and increased smoking cessation.
  • Program benefits, including healthcare savings, exceeded costs, yielding a net savings of $9,633 per 100 households.

Conclusions:

  • The "Smoke-Free Homes" intervention is scalable and cost-effective.
  • Identifying core elements and subpopulation effectiveness aids in assessing intervention scalability.
  • This program offers a model for effective, scalable public health interventions.