Abstract P121: Comparative Effectiveness Study of the Diabetes Prevention Program in Families: Preliminary Results

Circulation ◽  
2015 ◽  
Vol 131 (suppl_1) ◽  
Author(s):  
Jennifer Wessel ◽  
Erin O'Kelly-Phillips ◽  
Kelly Palmer ◽  
Chandan Saha ◽  
Tamara Hannon ◽  
...  

The prevalence of gestational diabetes (GDM) is increasing substantially and currently affects up to 14% of pregnancies. As many as 70% of women with GDM will develop type 2 diabetes (T2D) in the next 10 years. Moreover as many as 40% of children exposed to in-utero diabetes will develop obesity and T2D. The Diabetes Prevention Program (DPP) is an evidence-based lifestyle intervention that has been shown to lower T2D risk by 58% in high-risk adults. Family based lifestyle interventions that target either children, parents or both have reported mixed results. We modified the DPP curriculum to use with families (DPPF) and recruited mothers with a history of GDM and their children 8-15 years old. We randomized n=130 families to test which method of delivering the DPPF (mothers only (M) or mothers and their children (M+C)) is more effective at lowering families T2D risk. Baseline characteristics of women were similar among each intervention group (n=65 M and n=65 M+C, respectively): age (38±8 vs 39±11, P=0.5), ethnicity (Black 55% vs 55%, White 20% vs 17%, Latino 20% vs 27%, other 5% vs 2%, P=0.6), body mass index (BMI, 37±8 vs 38±7, P=0.24), systolic blood pressure (SBP, 121±11 vs 122±13, P=0.8), diastolic blood pressure (DBP, 103±26 vs 105±21, P=0.6), HbA1c (5.6±0.4 vs 5.7±0.3, p=0.2). The majority of women self-reported low levels of physical activity (PA): moderate PA (2 days or less per week, 42% vs 26%, P=0.06) or vigorous PA (2 days or less per week, 38% vs 25%, P=0.1), and high levels of sedentary activities (3 or more hours per day, 49% vs 58%, P=0.2). For diet related obesogenic behaviors women self-reported high levels of eating meals while watching TV (3 days or more per week, 58% vs 74%, P=.06) and eating at restaurants (3 days or more per week, 28% vs 41%, P=0.1). Follow-up is ongoing and currently n=32 families have completed the 3-month follow-up. Preliminary analyses of mothers show decreases in HbA1c (-.01±.3 vs -.1±.2), SBP (-9.7±30 vs -3.1±8), DBP (-8±19 vs -1±9) but not BMI (0.07±1.6 vs 0.04±1.2); however results were not significantly different by intervention group.

2021 ◽  
Vol 12 ◽  
pp. 215013272110298
Author(s):  
Susan M. Devaraj ◽  
Bonny Rockette-Wagner ◽  
Rachel G. Miller ◽  
Vincent C. Arena ◽  
Jenna M. Napoleone ◽  
...  

Introduction The American Heart Association created “Life’s Simple Seven” metrics to estimate progress toward improving US cardiovascular health in a standardized manner. Given the widespread use of federally funded Diabetes Prevention Program (DPP)-based lifestyle interventions such as the Group Lifestyle Balance (DPP-GLB), evaluation of change in health metrics within such a program is of national interest. This study examined change in cardiovascular health metric scores during the course of a yearlong DPP-GLB intervention. Methods Data were combined from 2 similar randomized trials offering a community based DPP-GLB lifestyle intervention to overweight/obese individuals with prediabetes and/or metabolic syndrome. Pre/post lifestyle intervention participation changes in 5 of the 7 cardiovascular health metrics were examined at 6 and 12 months (BMI, blood pressure, total cholesterol, fasting plasma glucose, physical activity). Smoking was rare and diet was not measured. Results Among 305 participants with complete data (81.8% of 373 eligible adults), significant improvements were demonstrated in all 5 risk factors measured continuously at 6 and 12 months. There were significant positive shifts in the “ideal” and “total” metric scores at both time points. Also noted were beneficial shifts in the proportion of participants across categories for BMI, activity, and blood pressure. Conclusion AHA-metrics could have clinical utility in estimating an individual’s cardiovascular health status and in capturing improvement in cardiometabolic/behavioral risk factors resulting from participation in a community-based translation of the DPP lifestyle intervention.


2020 ◽  
Author(s):  
Tatiana Toro-Ramos ◽  
Andreas Michaelides ◽  
Maria Anton ◽  
Zulekha Karim ◽  
Leah Kang-Oh ◽  
...  

BACKGROUND The Centers for Disease Control and Prevention (CDC) diabetes prevention program (DPP) has formed the foundation for Type 2 Diabetes Mellitus (T2DM) prevention efforts and lifestyle change modifications in multiple care settings. To our knowledge, no randomized controlled trial has verified the efficacy of a fully mobile version of CDC’s diabetes prevention program (DPP). OBJECTIVE This study aimed to investigate the long-term weight loss and glycemic efficacy of a mobile-delivered DPP compared with a control group receiving usual medical care. METHODS Adults with prediabetes (N=202) were recruited from a clinic and randomized to either a mobile-delivered, coach-guided DPP (Noom) or a control group that received regular medical care including a paper-based DPP curriculum and no formal intervention. The intervention group learned how to use the Noom program, how to interact with their coach, and the importance of maintaining motivation. They had access to an interactive coach-to-participant interface and group messaging, daily challenges for behavior change, DPP-based education articles, food logging, and automated feedback. Primary outcomes included changes in weight and hemoglobin A<sub>1c</sub> (HbA<sub>1c</sub>) levels at 6 and 12 months, respectively. Exploratory secondary outcomes included program engagement as a predictor of changes in weight and HbA<sub>1c</sub> levels. RESULTS A total of 202 participants were recruited and randomized into the intervention (n=101) or control group (n=99). In the intention-to-treat (ITT) analyses, changes in the participants’ weight and BMI were significantly different at 6 months between the intervention and control groups, but there was no difference in HbA<sub>1c</sub> levels (mean difference 0.004%, SE 0.05; <i>P</i>=.94). Weight and BMI were lower in the intervention group by −2.64 kg (SE 0.71; <i>P</i>&lt;.001) and −0.99 kg/m2 (SE 0.29; <i>P</i>=.001), respectively. These differences persisted at 12 months. However, in the analyses that did not involve ITT, program completers achieved a significant weight loss of 5.6% (SE 0.81; <i>P</i>&lt;.001) at 6 months, maintaining 4.7% (SE 0.88; <i>P</i>&lt;.001) of their weight loss at 12 months. The control group lost −0.15% at 6 months (SE 0.64; <i>P</i>=.85) and gained 0.33% (SE 0.70; <i>P</i>=.63) at 12 months. Those randomized to the intervention group who did not start the program had no meaningful weight or HbA<sub>1c</sub> level change, similar to the control group. At 1 year, the intervention group showed a 0.23% reduction in HbA<sub>1c</sub> levels; those who completed the intervention showed a 0.28% reduction. Those assigned to the control group had a 0.16% reduction in HbA<sub>1c</sub> levels. CONCLUSIONS This novel mobile-delivered DPP achieved significant weight loss reductions for up to 1 year compared with usual care. This type of intervention reduces the risk of overt diabetes without the added barriers of in-person interventions. CLINICALTRIAL ClinicalTrials.gov NCT03865342; https://clinicaltrials.gov/ct2/show/NCT03865342


Circulation ◽  
2020 ◽  
Vol 141 (Suppl_1) ◽  
Author(s):  
Jennifer K Frediani ◽  
Jianheng Li ◽  
Felipe Lobelo

Purpose: One third of the U.S. adult population is estimated to have prediabetes. Hispanics have a 50% higher type 2 diabetes (T2DM) death rate compared to non-Hispanic whites, yet low participation in lifestyle change programs, making this subgroup an important target for prevention efforts. The purpose of this study was to determine the effects of an intervention implementing the Center for Disease Control and Prevention (CDC) National Diabetes Prevention Program (NDPP) plus recreational soccer (RS) in Hispanic men. Methods: Overweight and obese Hispanic men, aged 30-57 years with prediabetes at screening were recruited from the community. Enrolled participants were divided into three cohorts. Trained soccer coaches led 30-minute facilitated discussion of the NDPP modules after each RS session, with two sessions per week for 3 months and once per week for the following 3 months. The 1-hour RS sessions followed the Football Fitness curriculum structure. Standardized study assessments included body mass index, waist circumference, multi-frequency bioelectrical impedance analysis (InBody 270), blood pressure, hemoglobin A1c, and validated field physical fitness tests (figure of 8 run, handgrip strength, vertical jump, modified sit-ups, dynamic push-ups, one leg stand and Yo-Yo intermittent sprint test). Mixed models assessed the outcomes as a function of time and cohort and incorporated an unstructured covariance structure to examine the difference between baseline and 6 months. All analyses were conducted as intent-to-treat and generated using SAS v 9.4. Results: Hispanic males (n=41; mean age 41.7 [0.1] years) were obese at baseline (mean BMI 32.7, standard error [0.7], mean weight 93.9 [2.2] kg). After 6 months of the NDPP+RS intervention, there were significant changes in systolic and diastolic blood pressure (-6.6 [2.4]; p=0.01 and -6.1 [1.7] mmHg; p<0.001, respectively), HbA1c -0.2 [0.1]; p=0.005, figure of 8-agility run (-0.5 [0.1] sec; p<0.0001), number of modified push-ups in 40 seconds (3.9 [0.6]; p<0.0001), dynamic sit-ups (1.9 [0.4]; p<0.0001), and predicted VO 2 (ml/kg/min) (0.4 [0.2]; p=0.04. Despite significant reductions in weight (-3.8 kg [0.7]; p<0.0001), waist circumference (-6.6 [0.7] cm; p<0.0001), body fat % (-1.9 kg [0.5]; p=0.0002), lean body mass was mostly preserved [-0.9 [0.3]; p=0.009]. Conclusion: Among middle-aged Latino men, broad-ranging significant improvements in body composition, physical fitness, HbA1c and blood pressure were observed after 6 months of participating in lifestyle education plus RS.


Circulation ◽  
2020 ◽  
Vol 141 (Suppl_1) ◽  
Author(s):  
Susan Devaraj ◽  
Bonny Rockette-Wagner ◽  
Vincent Arena ◽  
Rachel G Miller ◽  
Jenna Napoleone ◽  
...  

Introduction: The AHA created “Life’s Simple Seven” metrics to measure progress toward the goal of improving the cardiovascular (CV) health of all Americans, classifying each metric as “ideal”, “intermediate,” or “poor”. Few studies have examined the impact of behavioral lifestyle interventions on CV health metrics. We evaluated changes in CV health metrics during the course of a CDC recognized Diabetes Prevention Program-based lifestyle intervention known as Group Lifestyle Balance (DPP-GLB). Hypothesis: DPP-GLB will be associated with improvements in CV health metrics after 6 months of intervention and maintenance of these improvements at 12 months post-baseline. Methods: We used combined data from two similar intervention trials (occurring 6 years apart) offering a 12 month DPP-GLB program in the community setting to overweight/obese individuals with prediabetes and/or metabolic syndrome. Changes in individual CV health metrics (BMI, blood pressure, total cholesterol, fasting blood glucose, physical activity; measures of smoking and diet were not available) and total metric score (sum of metric profile where ideal=2, intermediate=1 and poor=0 for each metric, possible “total “range of 0-10) were considered after 6 and 12 months of intervention. Results: Among 222 participants (76%) with complete data for all 5 metrics at intervention baseline, 6 and 12 month follow up, there was a significant beneficial shift from baseline to 6 and 12 months in the proportion of participants within CV health metric categories for BMI, physical activity and blood pressure (Figure 1). Total metric score also improved significantly (p<0.01, signed-rank test) at 6 [median (IQR) change: +1.0 (0-1.0)] and 12 months [median (IQR) change: 0.0 (0-1.0)]. Significant improvement was also seen in the median number of ideal metrics at 6 and 12 months (p<0.01 for both). Conclusions: The DPP-GLB intervention was successful in improving CV health metrics at both 6 and 12 months, demonstrating the potential of this program to decrease CVD risk.


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