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Seattle-King County Healthy Homes Project

In Brief

Last Updated

October 2012

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Evidence of Program Model Effectiveness

This program model does not meet the criteria established by the Department of Health and Human Services (DHHS) for an “evidence-based early childhood home visiting service delivery model” for the general population or for tribal populations.

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Program Model Description

The Seattle–King County (SKC) Healthy Homes Project aimed to reduce asthma morbidity and asthma-triggered health care use and improve asthma-related quality of life by increasing asthma self-management skills and reducing exposure to indoor asthma triggers. The program, which targeted low-income households of children with persistent asthma, used two service delivery approaches: a high-intensity and a low-intensity model. The high-intensity model included an initial home visit by a community asthma nurse who provided patient education, training in self-management, the development of a patient-specific asthma action plan, and case management and review. Families then received up to six follow-up visits from a community health worker (CHW). CHWs provided in-home support, education, indoor trigger identification, and resources (including bedding covers, vacuums, and cleaning supplies) to address environmental triggers. Support for self-management, medication use, and communication with health care providers also were reinforced. The CHWs were educated and trained on asthma, asthma self-management, and the control of environmental asthma triggers. The low-intensity model included the initial home visit only. For more information, please read the Program Model Overview.

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Extent of Evidence

Results of Search and ReviewNumber of Studies
Released from 1979 to 2011 8
Eligible for review 0
     Rated high 0
     Rated moderate 0
     Rated low 0
     Additional sourcesa 0

aAdditional sources overlap with another study and are not rated.

For more information, see the study database. For more information on the criteria used to determine the study ratings, please read Producing Study Ratings.

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Summary of Findings

Please read Describing Effects for more information on these categories. Only results from studies that meet the standards for the high or moderate ratings are included above.

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Criteria Established by the Department of Health and Human Services

Information Based on Comprehensive Review of All High- and Moderate-Impact Studies for this Model
High- or moderate-quality impact study? None eligible for review
Across high- or moderate-quality studies, favorable impacts in…
 
   at least two outcome domains within one sample
 
   OR
 
   the same domain for at least two non-overlapping samples?
NA
Favorable impacts on full sample? NA
Any favorable impacts on outcome measures sustained at least 12 months after program enrollment?a NA
One or more favorable, statistically significant impact reported in a peer-reviewed journal?a NA

NA = not applicable.

aThis information is reported for all program models, but the requirements for sustained findings and inclusion in a peer-reviewed journal only apply to models for which all findings are from randomized controlled trials.

Please read the DHHS Criteria for Evidence-Based Program Models for more information.

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