Neighborhood built and food environment in relation to glycemic control in people with type 2 diabetes in the moving to health study.

OBJECTIVE: To examine whether built environment and food metrics are associated with glycemic control in people with type 2 diabetes. RESEARCH DESIGN AND METHODS: We included 14,985 patients with type 2 diabetes using electronic health records from Kaiser Permanente Washington. Patient addresses were geocoded with ArcGIS using King County and Esri reference data. Built environment exposures estimated from geocoded locations included residential unit density, transit threshold residential unit density, park access, and having supermarkets and fast food restaurants within 1600-m Euclidean buffers. Linear mixed effects models compared mean changes of HbA1c from baseline at 1, 3 (primary) and 5 years by each built environment variable. RESULTS: Patients (mean age = 59.4 SD = 13.2, 49.5% female, 16.6% Asian, 9.8% Black, 5.5% Latino/Hispanic, 57.1% White, 20% insulin dependent, mean BMI = 32.7±7.7) had an average of 6 HbA1c measures available. Participants in the 1st tertile of residential density (lowest) had a greater decline in HbA1c (-0.42, -0.43, and -0.44 in years 1, 3, and 5 respectively) than those in the 3rd tertile (HbA1c = -0.37 at 1- and 3-years and -0.36 at 5-years; all p-values <0.05). Having any supermarkets within 1600 m of home was associated with a greater decrease in HbA1c at 1-year and 3-years compared to having none (all p-values <0.05). CONCLUSIONS: Lower residential density and better proximity to supermarkets may benefit HbA1c control in people with people with type 2 diabetes. However, effects were small and indicate limited clinical significance.

A study protocol to evaluate the implementation and effectiveness of the Clinical Nurse Leader Care Model in improving quality and safety outcomes.

AIMS: Patients are harmed or die every year because of unsafe, inappropriate or inadequate healthcare delivery. Registered Nurses are a recognized patient safety strategy. However, variability in research findings indicate the relationship is not as simple as "more nurses=better outcomes." Hence, currently there exists no evidence-based frontline nursing care model. One emerging model is the Clinical Nurse Leader care model. DESIGN: This Hybrid Type II Implementation-Effectiveness study will evaluate the effect of the care model on standardized quality and safety outcomes and identify implementation characteristics that are sufficient and necessary to achieve outcomes. METHODS: This study leverages a natural experiment in 66 clinical care units in nine hospitals across five states in the United States that have implemented the Clinical Nurse Leader care model. RESULTS: Findings will elucidate Registered Nurse's mechanisms of action as organized into frontline models of care and link actions to improved care quality and safety.