Diabetes Care 31:247-254, 2008 DOI: 10.2337/dc07-0746 © 2008 by the American Diabetes Association
Opportunities and Challenges for Diabetes Prevention at Two Community Health Centers
1 Division of Preventative and Behavioral Medicine, Department of Medicine, University of Massachesetts Medical School, Worcester, Massachusetts Address correspondence and reprint requests to Milagros C. Rosal, PhD, University of Massachusetts Medical School, 55 Lake Ave. North, S7-755, Worcester, MA 01655. E-mail: milagros.rosal{at}umassmed.edu
OBJECTIVE—Translating evidence-based diabetes prevention interventions to disadvantaged groups is a public health priority that poses unique challenges. Community health centers (CHCs) provide unequaled opportunities to prevent diabetes among poor and minority high-risk groups. This formative study sought to assess structural, processes-of-care (health care quality domains), and patient factors that need to be considered for diabetes prevention at CHCs. RESEARCH DESIGN AND METHODS—A multimethod approach was implemented to assess system-, provider-, and patient-level factors at two large CHCs serving diverse urban communities. RESULTS—Medical chart audits (n = 303) showed limited documentation of risks. Provider surveys (n = 74) evidenced knowledge gaps regarding factors associated with increased diabetes risk, efficacy of pharmacological interventions, and low perceived efficacy in promoting patient behavior change. Patient focus groups (two groups) with at-risk Hispanics and African Americans suggested mixed knowledge regarding whether diabetes can be prevented, some knowledge gaps regarding factors related to risk, and multiple challenges for lifestyle change. CONCLUSIONS—Multiple and multilevel challenges to translating diabetes prevention interventions for the benefit of at-risk populations who seek care at CHCs were observed.
Abbreviations: CHC, community health center
Translating evidence-based diabetes prevention interventions (1–3) to disadvantaged groups is a challenging public health priority. This study sought to identify patient-, provider-, and system-level opportunities and challenges to delivering diabetes prevention services in community health centers (CHCs). This manuscript adds to current literature on structural, processes-of-care (health care quality domains) (4), and patient factors (5) that need to be considered in the design and implementation of diabetes prevention efforts for the high-risk populations who seek health care at CHCs.
An ecological framework (6), which recognizes the multiple levels of influence on patients outcomes within health care settings, including factors associated with the health care system, providers and patients, guided this study. Within this framework, we assessed quality-of-care domains from Donabedian's Structure-Process-Outcome model (4) at the system level (system structure, including health care resources) and at the provider level (processes related to technical expertise and interpersonal relationships with patients). At the patient level, social cognitive theory (5) constructs (knowledge, attitudes, behaviors, and environmental influences) were assessed. Institutional review board approval was obtained before study implementation.
Setting
Data sources
Medical records audit. We obtained administrative records of all clinic visits of patients aged 25–60 years for the prior year at each of the clinics. Patients with a diagnosis code indicating diabetes care were removed from the file. Retaining one record per subject, we selected a simple random sample from each of four strata defined by clinic and sex. Administrative records did not distinguish between registered clinic patients and one-time walk-in patients. Thus, we deliberately sampled a larger number of records, taking into consideration that only records of established patients were of interest. A stratified random sample of 450 patient records was selected for auditing. Records not located in the clinic were requested on three occasions, at least 2 weeks apart, before being designated as missing.
Provider survey.
Patient focus groups. Convenience samples of patients were recruited from both CHCs. Over a 1-week period, providers screened eligible patients at the time of their clinic visit and obtained verbal consent from eligible patients to be contacted by a study coordinator. Two groups were facilitated by two experienced qualitative researchers: an African-American facilitator (assisted by a Caucasian researcher) led a group composed of African-American patients, and a Hispanic facilitator (assisted by another Hispanic researcher) led a group of Hispanic patients. This group was conducted in Spanish. A semistructured interview guided the discussions. Topics included knowledge about diabetes and diabetes prevention, attitudes toward diabetes prevention, and previous efforts to modify dietary and physical activity habits and to lose weight. Patients preferences for program development were also assessed. Patients provided written consent and completed a brief survey (demographics and health care history). The 90-min discussions were audiotaped and transcribed. Participants received a $25 incentive.
Analyses
Medical record audit results In all, 303 records were available and eligible for review (Table 1). Age and sex distributions were similar in both clinics. However, CHC 1 had more Hispanics (45%) and most patients were seen by residents (91%), whereas CHC 2 had more African Americans (47%) and patients were equally seen by attending physicians (46%) and residents (44%).
More than half of medical records reviewed had no documentation of factors associated with diabetes risk. Weight and height were documented in 86 and 13% of charts, respectively, making it impossible to calculate BMI for the majority of patients. Chronic conditions (depression 22%, asthma 13%, gastroesophageal reflux disease/gastrointestinal 12%, arthritis 7%, and others) were relatively common. Referral for lipids or glucose screening tests was relatively limited, with less than half of patients having documented referrals. Documented behavioral recommendations for weight loss, exercise, and dietary change were uncommon. Only 5 patients had a documented nutrition referral, and 14 had been prescribed a lipid-lowering agent.
We attempted to determine the percentage of patients who might have a higher diabetes risk using an algorithm to obtain a risk factor score (7,9). We used measures of overweight (defined by documentation in clinical notes, calculated BMI >24.9 kg/m2, or weight >180 lb if female or 220 lb if male), elevated lipids (defined by serum cholesterol levels >240 mg/dl or documentation in clinical notes), hypertension (defined as documented in medical chart or clinical notes), and impaired fasting glucose (defined by a value Among 69 (23%) patients classified as at elevated diabetes risk, provider advice for lifestyle behavior change was documented as follows: 17% of patients had received weight loss advice (none received this advice in the past 3 years), 32% had received exercise advice (the majority of them in the past 3 years), and 30% had received dietary advice (none in the past 3 years). Only four patients had ever been referred to dietary counseling with a nutritionist, and three had been referred to a weight loss clinic/obesity clinic. Seventy percent of patients were at low or unclear risk due to incomplete information.
Provider survey results
Most providers were aware of an association between excess weight and diabetes, although the role of inactivity, abdominal fat, and type of diet was less commonly understood. Most did not identify hypertension and elevated LDL as risk factors for diabetes. Few providers (9%) appropriately identified obesity, physical inactivity, glucose abnormalities, hypertension, and elevated LDL as associated with diabetes risk. Most providers endorsed weight loss and lifestyle changes as effective diabetes prevention interventions. However, almost half incorrectly endorsed reduction in sugar intake as an evidence-based diabetes prevention strategy (data not shown). Less than one-third of providers endorsed biguanides and some endorsed thiazolidinediones as evidence-based prevention strategies (data not shown). Overall, providers believed that their lifestyle recommendations were unlikely to be adopted by patients (Table 2), and more than two-thirds (69%) (data not shown) endorsed counseling by a nutritionist as more likely to be adopted. Most providers believed that patients were adherent to lipid-lowering agents. Use of pharmacotherapy for obesity or diabetes prevention was uncommon. Providers perceived barriers (from a list of possible barriers) and strategies for diabetes prevention were also assessed (See Table 2).
Focus groups results
Similarities existed between the two groups. Most patients had family history of diabetes and were aware of diabetes symptoms and complications. However, knowledge that diabetes can be prevented or delayed was mixed, with some reporting awareness and others appearing less sure. Risk perception was greater among Hispanics compared with African Americans, and more Hispanic patients had made previous efforts to lose weight compared with African Americans. More similarities than differences existed among the groups with regard to cited barriers to weight loss and lifestyle behavior change, having regular sources of health information, and preferences for health information, sources. The groups differed slightly with regard to the importance of provider recommendations, although both groups appeared to rely on CHC initiatives for information and assistance. Differences also were noted in terms of preferences for intervention strategies and logistical needs (e.g., language needs, transportation).
Triangulated results
Translation of evidence-based diabetes prevention care into routine health care settings is a public health priority and can decrease morbidity, mortality, and health care costs (1–3). However, we observed suboptimal quality of care with respect to diabetes prevention efforts at the two urban CHCs in this study. Risk factor assessment was poor, screening tests were underutilized, and documentation of counseling and referral interventions for risk factors was limited and lower than previously reported (10,11). Consistent with previous studies (12), multiple and multilevel challenges for translation were observed. Study results suggest opportunities for quality improvement and for intervening for diabetes prevention at CHCs, related to structural factors, processes of care (both technical and interpersonal) (4), and patient factors (5). Deficits in CHC structure were apparent. The level of difficulty locating patient charts is likely to be a barrier to appropriate documentation of patients risk factors and timely counseling for risk factor reduction. Limited reimbursement is an added challenge. A recent review summarized important roles that health systems could play in diabetes prevention (e.g., electronic records, computerized reminders and provider feedback, multidisciplinary teams providing patient education and follow-up, self-management education in community settings, and case managers coordinating care) and highlighted the lack of data on system-based approaches to diabetes prevention (13). Systems changes could facilitate identification and documentation of diabetes risk factors, implementation of hands-off referrals, and care continuity in CHCs with multiple part-time providers. While electronic records have potential to aid prevention efforts, many CHCs do not count on resources to take advantage of electronic tools. Other office system redesign options with demonstrated efficacy for improving quality of care and outcomes in CHCs, such as manual clinician reminder systems, brief intervention algorithms, and use of trained office staff, among others (14–16), may be more feasible. Although nutritionists were available at both CHCs and providers stated a preference for referring patients for counseling to ancillary staff who they believed to be more efficacious in counseling patients, limited referrals were made to nutritionists. A possible contributing factor to this discrepancy was lack of adequate reimbursement, which may have precluded recommendations by providers and acceptance of recommendations by patients. Of note, when describing preferences for diabetes prevention and weight loss, most patients discussed CHC-based groups and community outreach as a preferred method for intervention. Group interventions that target behavior change among patients may be cost-effective (17,18) and potentially be delivered through collaborations between health delivery systems and community agencies and resources (e.g., YMCA) and alleviate pressures to deliver in-depth counseling during time-pressured clinic visits. Factors related to processes of care, including provider knowledge deficits and lack of confidence for behavioral counseling, were evidenced and may have contributed to limited screening and intervention efforts. Successful models for training health care providers in behavioral counseling skills exist (19), along with evidence that training improves patient and provider satisfaction and patient outcomes (20). Our data suggest that providers would welcome training in behavioral counseling. Thus, opportunities for provider training related to diabetes prevention through formal continuing education courses or in-service trainings are important and likely to enhance prevention counseling. The impact of interpersonal processes between providers and patients also was observed, with discrepancies between provider perceptions of patients and what patients reported. Particularly striking was the contrast between providers views of patients attitudes toward prevention compared with patients views of prevention. Providers perceived patients cultural traditions, attitudes, and low motivation for prevention as important challenges, whereas patients expressed interest and were concerned about their diabetes risk, despite expressing challenges regarding their ability to initiate and maintain lifestyle changes. Interventions that address this chasm may be important to improving diabetes prevention efforts. Patient influences observed included limited mixed knowledge regarding diabetes risk and prevention, low self-efficacy, and limited behavior change skills as evidenced by many reporting a history of failed weight loss attempts. Multiple external barriers to lifestyle change also were identified. Future diabetes prevention interventions need to address these constructs, all of which are associated with behavior change outcomes (21–24). Study strengths include its multimethod, multilevel approach to assessing challenges to the translation of evidence-based diabetes prevention interventions; its attention to minorities; and its focus on CHCs where many at-risk minorities receive care. Generalizability of findings is limited in that only two CHCs were included, there was difficulty locating records to be audited, not all providers responded to the survey, and there are potential biases in using a convenience sample for focus groups. In addition, because we relied on chart audits to assess provider practice, counseling efforts may have been underestimated if documentation did not mach practice. The sizable number of missing medical charts is of concern; however, the consistency of our results across health centers suggests that it is unlikely that the review of those charts (had they been available) would have resulted in a more optimistic perspective of the situation. On the contrary, if providers do not have their patients records readily available at the time of appointments, missing charts may have revealed poorer documentation. The providers survey response rate was slightly lower than in other studies (25), possibly due to the number of part-time providers. A more important study limitation is the lack of input from Caucasians and English-speaking Hispanics. Another study limitation relates to the strategies we had to use to identify diabetes risk factors. It is possible that these limitations could have underestimated the nature of the problems observed. Evidence-based lifestyle interventions are recommended for first-line use in diabetes prevention (26). Translation efforts are needed to effectively implement these interventions in real-world CHC settings to prevent diabetes among at-risk underserved and minority patients. Quality improvements will be needed to facilitate diabetes prevention at CHCs. Despite its limitations, this study identified numerous and multilevel challenges to these efforts. The authors have proposed strategies whose effectiveness will require further research. Given that most Americans seek primary care services every year (27), intervening for diabetes prevention at health care settings has tremendous potential for moving forward the public health agenda of fighting obesity and preventing diabetes. Failure to counsel patient populations seen at CHCs to reduce weight to prevent diabetes represents a missed opportunity (28).
Published ahead or print at http://care.diabetesjournals.org on 5 November 2007. DOI: 10.2337/dc07-0746. Additional information for this article can be found in an online appendix at http://dx.doi.org/10.2337/dc07-0746. The costs of publication of this article were defrayed in part by the payment of page charges. This article must therefore be hereby marked "advertisement" in accordance with 18 U.S.C Section 1734 solely to indicate this fact. Received for publication July 17, 2007. Accepted for publication October 25, 2007.
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