***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: In an experimental study of weight reduction , 62 obese men and women were administered a pretreatment question naire and r and omly assigned to three experimental treatment groups : ( a ) an external control group with a nonrefundable contingency ; ( 6 ) a self-control group with a refundable contingency ; and ( c ) a self-control group with a nonrefundable contingency . The results indicated that the self-control and external-control treatments were equally effective in producing reduction in weight . However , both self-control interventions were more effective than the external-control intervention in promoting maintenance of weight loss We developed a computer-stored medical record system containing a limited set of the total clinical data base -- primarily diagnostic studies and treatments . This system responds to its own content according to physician-authored reminder rules . To determine the effect of the reminder messages generated by 1490 rules on physician behavior , we r and omly assigned practitioners in a general medicine clinic to study or control groups . The computer found indications for six different actions per patient in 12 467 patients during a 2-year study : 61 study group residents who received computer  reminders responded to 49 % of these indications ; 54 control group residents , to only 29 % ( p less than 0.0001 ) . Preventive care ( occult blood testing , mammographic screening , weight reduction diets , influenza and pneumococcal vaccines ) was affected . The intentions of the study group to use a given action for an indication predicted their response to the indications ( p less than 0.03 , r2 = 0.33 ) . The intentions of the control residents did not Exercise is the best predictor of long-term weight loss . This study evaluated two strategies for improving exercise adherence and long-term weight loss in obese out patients . Obese men and women ( N = 193 ) were r and omized to 1 of 5 treatment groups for 18 months : st and ard behavior therapy ( SBT ) ; SBT with supervised walks ( SW ) 3 times per week ; SBT + SW with personal trainers ( PT ) , who walked with participants , made phone reminders , and did make-up SW ; SBT + SW with monetary incentives ( I ) for completing SW ; and SBT + SW + PT + I. Both PT and I enhanced attendance at SWs , the combination producing the best adherence . Increased walk attendance did not result in higher overall energy expenditure , however , and long-term weight loss was also not improved . Post hoc analyses suggest that the level of exercise needed for successful long-term weight loss is much higher than that usually recommended in behavioral treatment programs To examine the relative cost-effectiveness of single versus multiple patient education strategies to reduce hypertension , we assigned patients to seven intervention groups and to a  usual-care control group  using a r and omized factorial design . We compared cost-effectiveness measures for single , double , and triple combinations of ( a ) a clinic exit interview with patients to clarify their medical regimens , ( b ) an educational meeting with a member of the patient 's family to aid in management at home , and ( c ) a series of small group sessions to help patients overcome personal barriers to management . We observed consistent results for six different effectiveness measures under a variety of decision-making rules . Our results suggest that in the absence of targeting of multiple interventions to systematic ally selected high-risk patients , multiple intervention combinations are not more cost-effective than single interventions Forty smokers and 47 overweight individuals were recruited for a home correspondence program for either smoking cessation or weight loss . Participants were assigned to one of four programs for changing their respective health behaviors : ( 1 ) a home correspondence program conducted entirely by mail , ( 2 ) the mail program with supplemental financial contigency contracts tied to completion of written homework , ( 3 ) the correspondence programs supplemented both by homework contracts and by regular calls to a telephone answering system , and ( 4 ) a st and ard behavioral group program which acted as a comparison condition . Results showed that all three correspondence approaches produced significant changes in health behaviors equal to the changes experienced by participants in the st and ard group program . The implication of these findings for development of low cost programs for disease prevention are discussed Objective To evaluate whether  nurse run clinics in general practice improve secondary prevention in patients with coronary heart disease . Design R and omised controlled trial . Setting A r and om sample of 19 general practice s in northeast Scotl and . Patients 1173 patients ( 685 men and 488 women ) under 80 years with working diagnoses of coronary heart disease , but without terminal illness or dementia and not housebound .  Intervention Nurse run clinics promoted medical and lifestyle aspects of secondary prevention and offered regular follow up . Main outcome measures Components of secondary prevention assessed at baseline and one year were : aspirin use ; blood pressure management ; lipid management ; physical activity ; dietary fat ; and smoking status . A cumulative score was generated by counting the number of appropriate components of secondary prevention for each patient . Results There were significant improvements in aspirin management ( odds ratio 3.22 , 95 % confidence interval 2.15 to 4.80 ) , blood pressure management ( 5.32 , 3.01 to 9.41 ) , lipid management ( 3.19 , 2.39 to 4.26 ) , physical activity ( 1.67 , 1.23 to 2.26 ) and diet ( 1.47 , 1.10 to 1.96 ) . There was no effect on smoking cessation ( 0.78 , 0.47 to 1.28 ) . Of six possible components of secondary prevention , the baseline mean was 3.27 . The adjusted mean improvement attributable to intervention was 0.55 of a component ( 0.44 to 0.67 ) . Improvement was found regardless of practice baseline performance . Conclusions  Nurse run clinics proved practical to implement in general practice and effectively increased secondary prevention in coronary heart disease . Most patients gained at least one effective component of secondary prevention and , for them , future cardiovascular events and mortality could be reduced by up to a third STUDY OBJECTIVE : To study the clinical and cost outcomes of providing nutritional counselling to patients with one or more of the following conditions : overweight , hypertension and type 2 diabetes . DESIGN : The study was design ed as a r and om controlled trial . Consecutive patients were screened opportunistically for one or more of the above conditions and r and omly allocated to one of two intervention groups ( doctor/dietitian or dietitian ) or a control group . Both intervention groups received six counselling sessions over 12 months from a dietitian . However , in the doctor/dietitian group it was the doctor and not the dietitian who invited the patient to join the study and the same doctor also review ed progress at two of the six counselling sessions . SETTING : The study was conducted in a university group general practice set in a lower socioeconomic outer suburb of Perth , Western Australia . PATIENTS : Of the 273 patients r and omly allocated to a study group , 198 were women . Age ranged from 25 to 65 years . Seventy eight per cent of patients resided in the lower two socioecnomic quartiles , 56 per cent described their occupation as home duties and 78 per cent were partnered . RESULTS : Both intervention groups reduced weight and blood pressure compared with the control group . Patients in the doctor/dietitian group were more likely to complete the 12 month programme than those in the dietitian group . Patients in the doctor/dietitian group lost an average of 6.7 kg at a cost of $ A9.76 per kilogram , while the dietitian group lost 5.6 kg at a cost of $ A7.30 per kilogram . CONCLUSION : General practitioners , in conjunction with a dietitian , can produce significant weight and blood pressure improvement by health promotion methods In a r and omized double-blind trial , 60 obese patients were assigned in groups of 12 to five therapists . The patients for each therapist were then r and omly assigned in groups of four to placebo or one of two preparations of mazindol . Ninety-three percent of the patients completed the nine weeks of treatment . Weight loss averaged 1.1 lb per week and there was no advantage to pharmacological agents over placebo . However , there were significant differences between therapists . Weight loss by the patients assigned to physicians was no better than for those assigned to nonphysician personnel , but there were significant differences between individual nonphysician personnel . These findings support the concept that nonphysician personnel may be effective in treating many obese patients . In addition , we could not find a significant effect of either form of mazindol when compared to placebo Abstract Objective : To determine whether locally developed guidelines on asthma and diabetes disseminated through practice based education improve quality of care in non-training , inner city general practice s. Design : R and omised controlled trial with each practice receiving one set of guidelines but providing data on the management of both conditions . Subjects:24 inner city , non-training general practice s. Setting : East London . Main outcome measures : Recording of key variables in patient records ( asthma : peak flow rate , review of inhaler technique , review of asthma symptoms , prophylaxis , occupation , and smoking habit ; diabetes : blood glucose concentration , glycaemic control , funduscopy , feet examination , weight , and smoking habit ) ; size of practice disease registers ; prescribing in asthma ; and use of structured consultation “ prompts . ” Results : In practice s receiving diabetes guidelines , significant improvements in recording were seen for all seven diabetes variables . Both groups of practice s showed improved recording of review of inhaler technique , smoking habit , and review of asthma symptoms . In practice s receiving asthma guidelines , further improvement was seen only in recording of review of inhaler technique and quality of prescribing in asthma . Sizes of disease registers were unchanged . The use of structured prompts was associated with improved recording of four of seven variables on diabetes and all six variables on asthma . Conclusions : Local guidelines disseminated via practice based education improve the management of diabetes and possibly of asthma in inner city , non-training practice s. The use of simple prompts may enhance this improvement Behavioral treatments for obesity seek to modify eating and exercise behaviors by a change in their antecedents and consequences . More direct modification of antecedents and consequences by ( a ) the provision of food to patients and ( b ) the provision of financial rewards for weight loss was hypothesized to improve treatment outcomes . Two hundred two men and women were r and omly assigned to no treatment , st and ard behavioral treatment ( SBT ) , SBT plus food provision , SBT plus incentives , or SBT plus food provision and incentives . The major finding was that food provision significantly enhanced weight loss . Weight losses with  SBT  averaged 7.7 , 4.5 , and 4.1 kg at 6 , 12 , and 18 months , respectively , compared with 10.1 , 9.1 , and 6.4 kg , respectively , at the same intervals with the addition of food . Food provision also enhanced attendance , completion of food records , quality of diet , and nutrition knowledge . We conclude that the provision of food to weight-loss patients is a promising methodology that deserves further exploration A r and omized controlled trial was conducted to compare three forms of diabetes follow-up : ( 1 ) general practitioner care , ( 2 ) a system of care shared between the general practitioner ( GP ) and clinic and ( 3 ) conventional clinic care .  Two hundred and six diabetic patients without significant diabetes-related or other medical complications were r and omized to one of these follow-up systems .  Metabolic control and blood pressure improved significantly and equally in all three groups ( p < 0.05 ) . The shared care group performed as well as or better than either of the other two groups in all other outcome measures . In particular , final attendance rates were 72 % for shared care compared with only 35 % for GP care and 53 % for clinic care . Data collection rates for shared care were comparable with the clinic group for r and om blood glucose ( 88.9 % vs 95.1 % ) , weight ( 93.5 % vs 98.3 % ) , and blood pressure ( 94.8 % vs 92.7 % ) . Only in the case of glycosylated haemoglobin did shared care have poorer data collection ( 66.0 % vs 98.4 % ) . In all these parameters , except blood pressure , shared care out-performed the GP group . We conclude that with adequate support from and communication with hospital-based diabetes services , GPs are capable of providing care appropriate to the needs of uncomplicated diabetic patients OBJECTIVE : To assess the effect of a physician and pharmacist teamwork approach to uncontrolled hypertension in a medical resident teaching clinic , for patients who failed to meet the recommended goals of the fifth Joint National Commission on Detection , Evaluation and Treatment of High Blood Pressure . HYPOTHESIS : Physician and pharmacist teamwork can improve the rate of meeting national blood pressure goals in patients with previously uncontrolled hypertension . DESIGN : A single-blinded r and omized controlled trial lasting 6 months . SETTING : A primary care outpatient teaching clinic . PATIENTS : A sample of 95 adult hypertensive patients who failed to meet national blood pressure goals based on three consecutive visits over a 6-month period . INTERVENTION : Patients were r and omly assigned to a control arm of st and ard medical care or to an intervention arm in which a physician and pharmacist worked together as a team . MAIN RESULTS : At study completion , the percentage of patients achieving national goals due to intervention was more than double the percentage in the control arm ( 55 % vs 20 % , p < .001 ) . Systolic blood pressure declined 23 mm Hg in the intervention arm versus 11 mm Hg in the control arm ( p < .01 ) . Diastolic blood pressure declined 14 and 3 mm Hg in the intervention and control arms , respectively ( 
    Output:
    
Interventions aim ed at improving health professionals ' management or the  delivery of health care  for overweight/obese patients are more effective than usual care .
2 .
Interventions aim ed at redressing negative attitudes and related practice s towards overweight/obese patients are more effective than usual care .
3 .
Organisational interventions design ed to change the structure of services for overweight/obese people are more effective than educational or behavioural interventions for health professionals .
4 .