Randomized Controlled Trial of a Community Health Worker Self-Management Support Intervention Among Low-Income Adults With Diabetes, Seattle, Washington, 2010-2014.

INTRODUCTION: Community health workers (CHWs) can improve diabetes outcomes; however, questions remain about translating research findings into practical low-intensity models for safety-net providers. We tested the effectiveness of a home-based low-intensity CHW intervention for improving health outcomes among low-income adults with diabetes. METHODS: Low-income patients with glycated hemoglobin A1c (HbA1c) of 8.0% or higher in the 12 months before enrollment from 3 safety-net providers were randomized to a 12-month CHW-delivered diabetes self-management intervention or usual care. CHWs were based at a local health department. The primary outcome was change in HbA1c from baseline enrollment to 12 months; secondary outcomes included blood pressure and lipid levels, quality of life, and health care use. RESULTS: The change in HbA1c in the intervention group (n = 145) (unadjusted mean of 9.09% to 8.58%, change of -0.51) compared with the control group (n = 142) (9.04% to 8.71%, change of -0.33) was not significant (P = .54). In an analysis of participants with poor glycemic control (HbA1c >10%), the intervention group had a 1.23-point greater decrease in HbA1c compared with controls (P = .046). For the entire study population, we found a decrease in reported physician visits (P < .001) and no improvement in health-related quality of life (P = .07) in the intervention group compared with the control group. CONCLUSION: A low-intensity CHW-delivered intervention to support diabetes self-management did not significantly improve HbA1c relative to usual care. Among the subgroup of participants with poor glycemic control (HbA1c >10% at baseline), the intervention was effective.

The impact of a community-based chronic disease prevention initiative: evaluation findings from Steps to Health King County.

Steps to Health King County (Steps KC; Seattle, Washington) was one of 40 community-level initiatives funded in 2003 as part of the Steps to a HealthierUS initiative. Steps KC goals included reducing the impact of chronic diseases through a comprehensive, coordinated approach and reducing health disparities due to chronic illness. Steps KC intervention activities took place on two levels: the overall Steps KC collaborative and individual funded programs. Collaborative-level activities included policy and systems change initiatives and efforts to better integrate the funded-program organizations. The funded programs ranged from group health promotion programs to intensive case management. Steps KC was successful in creating a large, diverse community collaborative and funding 14 separate programs that reached approximately 8,000 community residents with medium- and high-intensity programs of demonstrated effectiveness. Systems change initiatives within school districts and government agencies led to a greater institutional emphasis on health promotion and on partnership with communities to address health inequities.