***TASK*** the task is to summarize an input biomedical literature in six sentences 
    ***INPUT*** the input is a biomedical literature 
    ***OUTPUT*** the output is the summary of an input biomedical literature in six sentences 
    ***DOCUMENTATION*** 
    ***EXAMPLES*** 
    Input: BACKGROUND African Americans suffer disproportionately from diabetes complications , but little research has focused on how to improve diabetic control in this population . There are also few or no data on a combined primary care and community-based intervention approach . METHODS We r and omly assigned 186 urban African Americans with type 2 diabetes ( 76 % female , mean A SD age 59 A 9 years ) to 1 of 4 parallel arms : ( 1 ) usual care only ; ( 2 ) usual care + nurse case manager ( NCM ) ; ( 3 ) usual care + community health worker ( CHW ) ; ( 4 ) usual care + nurse case manager/community health worker team . Using the framework of the Precede-Proceed behavioral model , interventions included patient counseling regarding self-care practice s and physician reminders . RESULTS The 2-year follow-up visit was completed by 149 individuals ( 84 % ) . Compared to the Usual care group , the NCM group and the CHW group had modest declines in HbA(1c ) over 2 years ( 0.3 and 0.3 % , respectively ) , and the combined NCM/CHW group had a greater decline in HbA(1c ) ( 0.8 % . P = 0.137 ) . After adjustment for baseline differences and /or follow-up time , the combined NCM/CHW group showed improvements in triglycerides ( -35.5 mg/dl ; P = 0.041 ) and diastolic blood pressure , compared to the usual care group ( -5.6 mmHg ; P = 0.042 ) . CONCLUSIONS Combined NCM/CHW interventions may improve diabetic control in urban African Americans with type 2 diabetes . Although results were clinical ly important , they did not reach statistical significance . This approach deserves further attention as a means to reduce the excess risk of diabetic complications in African Americans PURPOSE this paper describes a clinic and community-based diabetes intervention program design ed to improve dietary , physical activity , and self-care behaviors of older African American women with type 2 diabetes . It also describes the study to evaluate this program and baseline characteristics of participants . METHODS The New Leaf ... Choices for Healthy Living With Diabetes program consists of 4 clinic-based health counselor visits , a community intervention with 12 monthly phone calls from peer counselors , and 3 group sessions . A r and omized , controlled trial to evaluate the effectiveness of this intervention is described . RESULTS Seventeen focus groups of African American women were used to assessed the cultural relevance /acceptability of the intervention and measurement instruments . For the r and omized trial , 200 African American women with type 2 diabetes were recruited from 7 practice s in central North Carolina . Mean age was 59 , mean diabetes duration was 10 years , and participants were markedly overweight and physically inactive .  CONCLUSIONS Participants found this program to be culturally relevant and acceptable . Its effects on diet , physical activity , and self-care behaviors will be assessed in a r and omized trial PURPOSE Few culturally competent health programs have been design ed for Mexican Americans , a group that bears a disproportionate burden of Type 2 diabetes . In Starr County , a Texas-Mexico border community , investigators design ed and tested a culturally competent intervention aim ed at improving the health of this target population . The purpose of this article is to describe the development process of this diabetes education and support group intervention . METHODS The development stages were ( 1 ) community assessment , ( 2 ) intervention design , ( 3 ) selection or development of outcomes , ( 4 ) pilot testing , and ( 5 ) a r and omized clinical investigation . RESULTS Focus group participants identified knowledge deficits regarding diabetes and self-management strategies , and suggested characteristics of an effective intervention for Mexican Americans . Outcome measures included metabolic control indicators , a newly developed knowledge instrument , and an existing health belief instrument . Preliminary analyses indicated that the intervention was successful in significantly improving metabolic control in the target population . CONCLUSIONS Developing successful diabetes interventions for minority groups requires a number of stages , careful planning , assessment of cultural characteristics of the target population , and a systematic approach to implementation OBJECTIVE To determine whether diabetes care directed by nurses following detailed protocol s and algorithms and supervised by a diabetologist results in meeting the evidence -based American Diabetes Association ( ADA ) process and outcome measures more often than care directed under usual care in a minority population . RESEARCH DESIGN AND METHODS Studies were mainly conducted in two Los Angeles County clinics . In clinic A ,  nurse-directed diabetes care  was provided to 252 patients ( 92 % Hispanic and 2 % African-American ) referred by their primary care providers . These patients were hierarchically matched with 252 diabetic patients in clinic B ( 79 % Hispanic and 19 % African American ) . When nurse-directed care was abruptly discontinued in clinic A for administrative reasons , it was reestablished in clinic B. Those patients were r and omly selected from a teaching clinic , and the outcomes in 114 patients who completed 1 year were compared with outcomes derived the year before receiving nurses ' care . The following process and outcome measures were assessed in the study : 1 ) number of visits , 2 ) diabetes education , 3 ) nutritional counseling , 4 ) HbA(1c ) , 5 ) lipid profiles , 6 ) eye exams , 7 ) foot exams , 8) renal evaluations , and 9 ) ACE inhibitor therapy in appropriate patients . RESULTS For patients under nurse-directed diabetes care  in both clinics A and B , almost all process measures were carried out significantly more frequently than for the appropriate control patients . Under the care of nurses in clinic A , HbA(1c ) levels fell 3.5 % from 13.3 to 9.8 % in the 120 patients who were followed for at least 6 months , as compared with a 1.5 % fall from 12.3 to 10.8 % under usual ( physician-directed ) care in clinic B. During the year before enrolling in nurse-directed care in clinic B , mean HbA(1c ) levels decreased from 10.0 to 8.5 % . At the end of a year under the nurses ' care , the values fell further to 7.1 % . The median value fell from 8.3 to 6.6 % . CONCLUSIONS Specially trained nurses who follow detailed protocol s and algorithms under the supervision of a diabetologist can markedly improve diabetes outcomes in a minority population . This approach could help blunt the increased morbidity and mortality noted in minority population BACKGROUND Improved blood-glucose control decreases the progression of diabetic microvascular disease , but the effect on macrovascular complications is unknown . There is concern that sulphonylureas may increase cardiovascular mortality in patients with type 2 diabetes and that high insulin concentrations may enhance atheroma formation . We compared the effects of intensive blood-glucose control with either sulphonylurea or insulin and conventional treatment on the risk of microvascular and macrovascular complications in patients with type 2 diabetes in a r and omised controlled trial . METHODS 3867 newly diagnosed patients with type 2 diabetes , median age 54 years ( IQR 48 - 60 years ) , who after 3 months ' diet treatment had a mean of two fasting plasma glucose ( FPG ) concentrations of 6.1 - 15.0 mmol/L were r and omly assigned intensive policy with a sulphonylurea ( chlorpropamide , glibenclamide , or glipizide ) or with insulin , or conventional policy with diet . The aim in the intensive group was FPG less than 6 mmol/L. In the conventional group , the aim was the best achievable FPG with diet alone ; drugs were added only if there were hyperglycaemic symptoms or FPG greater than 15 mmol/L. Three aggregate endpoints were used to assess differences between conventional and intensive treatment :  any diabetes-related endpoint ( sudden death , death from hyperglycaemia or hypoglycaemia , fatal or non-fatal myocardial infa rct ion , angina , heart failure , stroke , renal failure , amputation [ of at least one digit ] , vitreous haemorrhage , retinopathy requiring photocoagulation , blindness in one eye , or cataract extraction ) ; diabetes-related death ( death from myocardial infa rct ion , stroke , peripheral vascular disease , renal disease , hyperglycaemia or hypoglycaemia , and sudden death ) ; all-cause mortality . Single clinical endpoints and surrogate sub clinical endpoints were also assessed . All analyses were by intention to treat and frequency of hypoglycaemia was also analysed by actual therapy . FINDINGS Over 10 years , haemoglobin A1c ( HbA1c ) was 7.0 % ( 6.2 - 8.2 ) in the intensive group compared with 7.9 % ( 6.9 - 8.8 ) in the conventional group -- an 11 % reduction . There was no difference in HbA1c among agents in the intensive group . Compared with the conventional group , the risk in the intensive group was 12 % lower ( 95 % CI 1 - 21 , p=0.029 ) for any diabetes-related endpoint ; 10 % lower ( -11 to 27 , p=0.34 ) for any diabetes-related death ; and 6 % lower ( -10 to 20 , p=0.44 ) for all-cause mortality . Most of the risk reduction in the any diabetes-related aggregate endpoint was due to a 25 % risk reduction ( 7 - 40 , p=0.0099 ) in microvascular endpoints , including the need for retinal photocoagulation . There was no difference for any of the three aggregate endpoints between the three intensive agents ( chlorpropamide , glibenclamide , or insulin ) . Patients in the intensive group had more hypoglycaemic episodes than those in the conventional group on both types of analysis ( both p<0.0001 ) . The rates of major hypoglycaemic episodes per year were 0.7 % with conventional treatment , 1.0 % with chlorpropamide , 1.4 % with glibenclamide , and 1.8 % with insulin .  Weight gain was significantly higher in the intensive group ( mean 2.9 kg ) than in the conventional group ( p<0.001 ) , and patients assigned insulin had a greater gain in weight ( 4.0 kg ) than those assigned chlorpropamide ( 2.6 kg ) or glibenclamide ( 1.7 kg ) . INTERPRETATION Intensive blood-glucose control by either sulphonylureas or insulin substantially decreases the risk of microvascular complications , but not macrovascular disease , in patients with type 2 diabetes . ( ABSTRACT TRUNCATED This study evaluated the current level of diabetes care in three county clinics serving an underserved minority population and determined if a low-literacy , diabetes reminder card would enhance certain diabetes process care measures .  Patients from two intervention sites were given the low-literacy , diabetes reminder card .  Two-hundred-nineteen patients ( 87 % ) showed the card to their provider , and 209 charts were review ed . American Diabetes Association guidelines had been met 37 % , 71 % , and 41 % for foot exam , and urine and lipid tests , respectively , at the time the card was given to the patients . Of the patients who needed a foot exam , urine test , and lipid panel that day ( based on ADA guidelines ) , 48 % , 67 % , and 35 % received them , respectively ( card effect ) . In the third ( nonintervention ) site , charts of 218 patients were review ed . Guidelines met were 95 % , 89 % , and 45 % for foot exam , urine and lipid tests , respectively . Interestingly , st and ardized progress notes containing the first two ( but not the third ) process measures were used at this site . We conclude that although low-literacy reminder cards did improve the ordering of process measures somewhat , they were not as effective as the utilization of progress forms with specific diabetes-related measures OBJECTIVE To determine whether a culturally appropriate clinic- and community-based intervention for African-American women with type 2 diabetes will increase  moderate-intensity physical activity ( PA ) . RESEARCH DESIGN AND METHODS In this r and omized controlled trial conducted at seven practice s in central North Carolina , 200 African-American women , > or = 40 years of age with type 2 diabetes , were r and omized to one of three treatment conditions : clinic and community ( group A ) , clinic only ( group B ) , or minimal intervention ( group C ) . The clinic-based intervention ( groups A and B ) consisted of four monthly visits with a nutritionist who provided counseling to enhance PA and dietary intake that was tailored to baseline practice s and attitudes ; the community-based intervention ( group A ) consisted of three group sessions and 12 monthly phone calls from a peer counselor and was design ed to provide social support and reinforce behavior change goals ; and the minimal intervention ( group C ) consisted of educational pamphlets mailed to participants . The primary study outcome was the comparison of PA levels between groups assessed at 6 and 12 months by accelerometer , which was worn while awake for 7 days . RESULTS Totals of 175 ( 88 % ) and 167 ( 84 % ) participants completed PA assessment at 6 and 12 months , respectively . For comparison of PA , the P value for overall group effect was 0.014 . Comparing group A with C , the difference in the average adjusted mean for PA was 44.1 kcal/day ( 95 % CI 13.1 
    Output:
    
—This systematic review provides evidence for the effectiveness of interventions to improve diabetes care among socially disadvantaged population s and identifies key intervention features that may predict success .