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OBJECTIVE: To evaluate whether attending diabetes group visits (GVs) leads to lower medical care charges for inadequately insured patients with type 2 diabetes mellitus (DM). STUDY DESIGN: Randomized controlled clinical trial. METHODS: Data were abstracted from financial records for 186 patients with uncontrolled type 2 DM randomized to receive care in GVs or usual care for 12 months. Mann-Whitney tests for differences of means for outpatient visits (primary and specialty care), emergency department (ED) visits, and inpatient stays were performed. Separate charge models were developed for primary and specialty outpatient visits. Because GV adherence is potentially dependent on unobserved patient characteristics, treatment effect models of outpatient charges and specialty care visits were estimated using maximum likelihood methods. RESULTS: Mann-Whitney test results indicated that GV patients had reduced ED and total charges but more outpatient charges than usual care patients. Ordinary least squares estimations confirmed that GVs increased outpatient visit charges; however, controlling for endogeneity by estimating a treatment effect model of outpatient visit charges showed that GVs statistically significantly reduced outpatient charges (P <.001). Estimation of a separate treatment effect model of specialty care visits confirmed that GV effects on outpatient visit charges occurred via a reduction in specialty care visits. CONCLUSIONS: After controlling for endogeneity via estimation of a treatment effect model, GVs statistically significantly reduced outpatient visit charges. Estimation of a separate treatment effect model of specialty care visits indicated that GVs likely substitute for more expensive specialty care visits.

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BACKGROUND: Current diabetes management guidelines offer blueprints for providers, yet type 2 diabetes control is often poor in disadvantaged populations. The group visit is a new treatment modality originating in managed care for efficient service delivery to patients with chronic health problems. Group visits offer promise for delivering care to diabetic patients, as visits are lengthier and can be more frequent, more organized, and more educational. OBJECTIVE: To evaluate the effect of group visits on clinical outcomes, concordance with 10 American Diabetes Association (ADA) guidelines [American Diabetes Association, Diabetes Care, 28:S4-36, 2004] and 3 United States Preventive Services Task Force (USPSTF) cancer screens [U.S. Preventive Services Task Force, http://www.ahrq.gov/clinic/uspstf/resource.htm, 2003]. RESEARCH DESIGN AND METHODS: A 12-month randomized controlled trial of 186 diabetic patients comparing care in group visits with care in the traditional patient-physician dyad. Clinical outcomes (HbA1c, blood pressure [BP], lipid profiles) were assessed at 6 and 12 months and quality of care measures (adherence to 10 ADA guidelines and 3 USPSTF cancer screens) at 12 months. RESULTS: At both measurement points, HbA1c, BP, and lipid levels did not differ significantly for patients attending group visits versus those in usual care. At 12 months, however, patients receiving care in group visits exhibited greater concordance with ADA process-of-care indicators (p < .0001) and higher screening rates for cancers of the breast (80 vs. 68%, p = .006) and cervix (80 vs 68%, p = .019). CONCLUSIONS: Group visits can improve the quality of care for diabetic patients, but modifications to the content and style of group visits may be necessary to achieve improved clinical outcomes.

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PURPOSE: The purpose of the study was to evaluate perceptions of care delivered through group visits to disadvantaged patients with type 2 diabetes. METHODS: One hundred eighty-six patients with uncontrolled type 2 diabetes were randomly assigned to receive care in group visits or usual care for 12 months. Their perceptions of the care they received were measured at baseline and 6 and 12 months by the Primary Care Assessment Tool (PCAT), the Diabetes-Specific Locus of Control (DLC) survey, and the Trust in Physician Scale (TPS). RESULTS: Compared to patients in usual care, group visit patients' PCAT scores were higher in the domains of ongoing care (P = .001), community orientation (P < .0001), and cultural competence (P = .022). In addition, group patients had higher scores for the Powerful-Other Health Professional subscale of the DLC survey (P = .010). CONCLUSIONS: Patients assigned to group visits had generally more positive perceptions about their care in the areas of ongoing care, community orientation of care, and cultural competence of care than did those in usual care. The perception that one's health professional is powerful, however, has been associated with a reluctance of patients to make medication changes on their own in previous studies. These findings suggest the need for modification in the way that group visits are conducted to empower and activate patients while still delivering continuous, culturally competent, and community-oriented care.

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OBJECTIVE: To evaluate the effectiveness of a managed care approach to health care delivery, group visits, in the management of uninsured or inadequately insured patients with type 2 diabetes. RESEARCH DESIGN AND METHODS: A total of 120 patients with uncontrolled type 2 diabetes were randomly assigned to receive their care in group visits or usual care for 6 months. After 6 months, concordance with 10 process-of-care indicators recommended by the American Diabetes Association (ADA) standards of care was evaluated through chart abstraction. The 10 items evaluated were up-to-date HbA(1c) levels and lipid profiles, urine for microalbumin, appropriate use of ACE inhibitor or angiotensin receptor blockers, use of lipid-lowering agents where indicated, daily aspirin use, annual foot examinations, annual referrals for retinal examinations, and immunizations against streptococcal pneumonia and influenza. RESULTS: Patients who received care in group visits showed statistically significant improvement in concordance with these 10 process-of-care indicators (P < 0.001). Of the patients, 76% who received care in group visits had at least 9 of these 10 items up to date, as compared with 23% of control patients; 86% of patients in group visits had at least 8 of the 10 indicators compared with 47% of control patients. CONCLUSIONS: Group visits proved more effective in promoting concordance with ADA standards of care than usual care in the treatment of uninsured or inadequately insured patients with type 2 diabetes.

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PURPOSE: This study was conducted to evaluate the feasibility and acceptability of a managed-care approach (group visits) on delivering care to uninsured or inadequately insured patients with type 2 diabetes. METHODS: One hundred twenty patients with uncontrolled type 2 diabetes were randomly assigned to receive care in group visits or usual care for 6 months. At baseline, 3 months, and 6 months, the feasibility and acceptability of this model of healthcare delivery were assessed through the patients' responses to the Primary Care Assessment Tool and the Trust in Physician Scale. Attendance records were kept for each group. RESULTS: Patients who received care in group visits showed an improved sense of trust in their physician compared with patients who continued to receive usual care. There was a tendency for patients in groups to report better coordination of their care, better community orientation, and more culturally competent care. Patient attendance at the groups also indicated good acceptance of this form of healthcare delivery. CONCLUSIONS: Group visits were feasible and acceptable to these uninsured and inadequately insured patients with uncontrolled type 2 diabetes and fostered an improved sense of trust in their physician.

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