The cost of intervention per participant delivered by dietitians was lower than interventions delivered by non-dietitians , although few studies reported costs .
Lifestyle interventions are effective in reducing body weight and glucose-related outcomes .
Dietitian-delivered interventions , compared with those delivered by other personnel , achieved greater weight reduction .
No consistent trend was identified across different delivery channels
BACKGROUND Type 2 diabetes is a significant public health concern .
With the completion of the Diabetes Prevention Program , there has been a proliferation of studies attempting to translate this evidence base into practice .
However , the cost , effectiveness , and cost-effectiveness of these adapted interventions is unknown .
OBJECTIVE The purpose of this systematic review was to conduct a comprehensive meta- analysis to synthesize the effectiveness , cost , and cost-effectiveness of lifestyle diabetes prevention interventions and compare effects by intervention delivery agent ( dietitian vs non-dietitian ) and channel ( in-person vs technology-delivered ) .
The effect of medical nutrition therapy by a registered dietitian nutritionist in patients with prediabetes participating in a randomized controlled clinical research trial.
BACKGROUND Prior studies have provided evidence that lifestyle change prevents or delays the occurrence of  type 2 diabetes mellitus . The challenge is to translate research evidence for type 2 diabetes mellitus prevention into health care setting s. OBJECTIVE We investigated the effect of medical nutrition therapy ( MNT ) compared with usual care on fasting plasma glucose values , glycated hemoglobin ( HbA1c ) , serum lipid levels , and Diabetes Risk Score , from baseline to the end of a 12-week intervention in overweight or obese adults with prediabetes . DESIGN Prospect i ve , r and omized , parallel group study of 76 adults with impaired fasting plasma glucose or an HbA1c of 5.7 % to 6.4 % , recruited between April 2010 and May 2011 who completed a 12-week intervention period . MAIN OUTCOME MEASURES The primary outcome measure was fasting plasma glucose . Secondary outcome measures were HbA1c , serum lipid levels , and Diabetes Risk Score . STATISTICAL ANALYSES A factorial repeated measures analysis of variance was used to make comparisons between the two groups ( the MNT and usual care groups ) and two measures of time ( baseline and 12 weeks postintervention ) . Data analysis was performed using the Statistical Package for the Social Sciences ( release 19.0 , 2010 , SPSS Inc ) . RESULTS There was a significant interaction for group assignment and HbA1c ( P=0.01 ) , with the MNT group experiencing significantly lower HbA1c levels than the usual care group ( 5.79 % vs 6.01 % ) after the 12-week intervention . There was a significant interaction for group assignment and Diabetes Risk Score ( P=0.001 ) . Diabetes Risk Score for the MNT group decreased from 17.54±3.69 to 15.31±3.79 compared with the usual care group score , which went from 17.23±4.69 to 16.83±4.73 . Regardless of group assignment , both groups experienced a reduction in total cholesterol ( P=0.01 ) and low-density lipoprotein cholesterol ( P=0.04 ) level . CONCLUSIONS The results demonstrate that individualized MNT is effective in decreasing HbA1c level in patients diagnosed with prediabetes
The cost of intervention per participant delivered by dietitians was lower than interventions delivered by non-dietitians , although few studies reported costs .
Lifestyle interventions are effective in reducing body weight and glucose-related outcomes .
Dietitian-delivered interventions , compared with those delivered by other personnel , achieved greater weight reduction .
No consistent trend was identified across different delivery channels
BACKGROUND Type 2 diabetes is a significant public health concern .
With the completion of the Diabetes Prevention Program , there has been a proliferation of studies attempting to translate this evidence base into practice .
However , the cost , effectiveness , and cost-effectiveness of these adapted interventions is unknown .
OBJECTIVE The purpose of this systematic review was to conduct a comprehensive meta- analysis to synthesize the effectiveness , cost , and cost-effectiveness of lifestyle diabetes prevention interventions and compare effects by intervention delivery agent ( dietitian vs non-dietitian ) and channel ( in-person vs technology-delivered ) .