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1.
Clin Diabetes ; 39(1): 72-79, 2021 Jan.
Article in English | MEDLINE | ID: mdl-33551556

ABSTRACT

Continuous subcutaneous insulin infusion (CSII) treatment may improve long-term glycemic outcomes and enhance quality of life compared with a multiple daily injection (MDI) insulin regimen for people with type 1 diabetes. As the number of people treated with CSII via a tubeless insulin pump is increasing, there is growing interest in the long-term glycemic outcomes of this treatment option across diverse populations. This multicenter, retrospective study evaluated glycemic control in 156 adults with type 1 diabetes initiating tubeless insulin pump therapy following transition from either MDI or CSII with a tubed insulin pump. In this study, use of the tubeless insulin pump over 12 months was associated with significant improvement in A1C in adults with type 1 diabetes, most notably in those with an A1C ≥9.0% and those previously treated with MDI.

2.
Diabetes Obes Metab ; 21(2): 393-396, 2019 02.
Article in English | MEDLINE | ID: mdl-30136353

ABSTRACT

The 1245.29 Trial recently showed that empaglifozin improved both blood pressure and glucose control in African American (AA) patients with type 2 diabetes (T2D) and hypertension. Using the Diabetes Collaborative Registry, a large-scale US registry of outpatients with diabetes recruited from primary care, cardiology and endocrinology practices, we sought to understand the potential impact of these observations in routine clinical practice. Among 74 290 AA patients with T2D from 368 US clinics, 60.4% had hypertension, of whom 34.5% had systolic blood pressure ≥ 140 mm Hg (20.8% of the total AA T2D population). Only 1.7% of this eligible population had been prescribed a sodium-glucose co-transporter two inhibitor. The mean estimated 5-year risk of cardiovascular death was 7.7%, which could be reduced to 6.2% when modelling the antihypertensive effect of empagliflozin across the eligible population (based on an 8-mm Hg blood pressure reduction). These findings may represent a potential opportunity for better management of cardiovascular risk factors and improved outcomes in this vulnerable cohort.


Subject(s)
Benzhydryl Compounds/therapeutic use , Black or African American , Diabetes Mellitus, Type 2/drug therapy , Glucosides/therapeutic use , Hypertension/drug therapy , Practice Patterns, Physicians'/statistics & numerical data , Black or African American/statistics & numerical data , Aged , Blood Pressure/drug effects , Blood Pressure Determination , Diabetes Complications/drug therapy , Diabetes Complications/ethnology , Diabetes Mellitus, Type 2/complications , Diabetes Mellitus, Type 2/physiopathology , Female , Humans , Hypertension/complications , Hypertension/ethnology , Intersectoral Collaboration , Male , Middle Aged , Multicenter Studies as Topic , Randomized Controlled Trials as Topic , Registries , Translational Research, Biomedical , Treatment Outcome , United States/epidemiology
3.
Endocr Pract ; 22(6): 689-98, 2016 Jun.
Article in English | MEDLINE | ID: mdl-27176141

ABSTRACT

OBJECTIVE: We aimed to compare metabolic control in adults with diabetes in the general population to those newly referred to a diabetes center and after 1 year of specialty care. METHODS: We performed a retrospective comparison of adults with diabetes aged ≥20 years data from the National Health and Nutrition Examination Survey (NHANES, n = 1,674) and a diabetes center (n = 3,128) from 2005-2010. NHANES participants represented the civilian, non-institutionalized U.S. POPULATION: Diabetes center referrals lived primarily around eastern Massachusetts. The proportion attaining targets for glycated hemoglobin A1c (A1c), blood pressure (BP), low-density lipoprotein (LDL) cholesterol, or all 3 (ABC control) and the proportion prescribed medications to lower A1c, BP, or cholesterol were evaluated. RESULTS: Compared to the general sample, a smaller proportion of new diabetes center referrals had A1c <7% (<53 mmol/mol, 24% vs. 53%, P<.001), BP <130/80 mm Hg (38% vs. 50%, P<.001), and ABC control (5.6% vs. 17%, P<.001) but not LDL<100 mg/dL (<2.6 mmol/L, 54% vs. 53%, P = .65). After 1 year, more diabetes center referrals attained targets for A1c (40%), BP (38%), LDL (67%), and ABC control (15%) (P<.001 for all versus baseline). ABC control was not different between the general sample and diabetes center referrals at 1 year (P = .16). After 1 year, a greater percentage of diabetes center referrals compared to the general sample were prescribed medications to lower glucose (95% vs. 72%), BP (79% vs. 64%), and cholesterol (77% vs. 54%)(all P<.001). CONCLUSION: Compared to the general population, glycemic control was significantly worse for adults newly referred to the diabetes center. Within 1 year of specialty care, ABC control increased 270% in the setting of significant therapy escalation. ABBREVIATIONS: A1c = glycated hemoglobin A1c ABC = composite of A1c, blood pressure, and cholesterol ACEi = angiotensin-converting enzyme inhibitor ARB = angiotensin receptor blocker BMI = body mass index BP = blood pressure EHR = electronic health record LDL = low-density lipoprotein NCHS = National Center for Health Statistics NHANES = National Health and Nutrition Examination Survey PCP = primary care provider.

4.
Int J Behav Nutr Phys Act ; 12: 58, 2015 May 08.
Article in English | MEDLINE | ID: mdl-25952160

ABSTRACT

BACKGROUND: Diets of children with type 1 diabetes are low in fruits, vegetables, and whole grains, and high in foods of minimal nutritional value, increasing risk for future adverse health outcomes. This 18-month randomized clinical trial tested the effect of a family-based behavioral intervention integrating motivational interviewing, active learning, and applied problem-solving on the primary outcomes of dietary intake and glycemic control among youth with type 1 diabetes. METHODS: A parallel-group study with equal randomization was conducted at an outpatient, free-standing, multidisciplinary tertiary diabetes center in the United States. Eligible youth were those age 8-16 years with type 1 diabetes diagnosis ≥1 year and hemoglobin A1c (HbA1c) ≥6.5% and ≤10.0%. Participants were 136 parent-youth dyads (treatment n = 66, control n = 70). The intervention consisted of 9 in-clinic sessions delivered to the child and parent; control condition comprised equivalent assessments and number of contacts without dietary advice. Dietary intake was assessed using 3-day diet records at 6 time points across the 18-month study. Dietary outcomes included the Healthy Eating Index-2005 (HEI2005; index measuring conformance to the 2005 United States Dietary Guidelines for Americans) and Whole Plant Food Density (WPFD; number of cup or ounce equivalents per 1000 kcal of whole grains, whole fruit, vegetables, legumes, nuts, and seeds consumed). HbA1c was obtained every 3 months. Overall comparison of outcome variables between intervention and usual care groups was conducted using permutation tests. RESULTS: There was a positive intervention effect across the study duration for HEI2005 (p = .015) and WPFD (p = .004). At 18 months, HEI2005 was 7.2 greater (mean ± SE 64.6 ± 2.0 versus 57.4 ± 1.6), and WPFD was 0.5 greater (2.2 ± 0.1 versus 1.7 ± 0.1) in the intervention group versus control. There was no difference between groups in HbA1c across the study duration. CONCLUSIONS: This behavioral nutrition intervention improved dietary quality among youth with type 1 diabetes, but did not impact glycemic control. Findings indicate the potential utility of incorporating such strategies into clinical care, and suggest that improvement in diet quality can be achieved in families living with this burdensome disease. TRIAL REGISTRATION: Clinicaltrials.gov registration number: NCT00999375.


Subject(s)
Behavior Therapy/methods , Diabetes Mellitus, Type 1/nursing , Diabetes Mellitus, Type 1/therapy , Diet/standards , Family , Nutrition Policy , Adolescent , Blood Glucose/analysis , Child , Diabetes Mellitus, Type 1/blood , Diet Records , Female , Glycated Hemoglobin/analysis , Humans , Male , Treatment Outcome
5.
Diabetes Technol Ther ; 26(6): 420-425, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38277162

ABSTRACT

Objective: Insulin bolus doses derive from glucose levels and planned carbohydrate intake, although fat and protein impact glycemic excursions. We examined the impact of macronutrients and number of daily meals/snacks on glycemic outcomes in youth with type 1 diabetes. Methods: Youth (N = 136, ages 8-17) with type 1 diabetes completed 3-day food records, wore 3-day masked continuous glucose monitoring, and had A1c measurements every 3 months for 1 year. Diet data were analyzed using Nutrition Data System for Research. Longitudinal mixed models assessed effects of macronutrient intake and number of meals/snacks on glycemic outcomes. Results: At baseline, youth (48% male) had mean age of 12.8 ± 2.5 years and diabetes duration of 5.9 ± 3.1 years; 73% used insulin pumps. Baseline A1c was 8.1% ± 1.0%, percent time in range 70-180 mg/dL (%TIR) was 49% ± 17%, % time below range <70 mg/dL (%TBR) was 6% ± 8%, % time above range >180 mg/dL (%TAR) was 44% ± 20%, and glycemic variability as coefficient of variation (CV) was 41% ± 8%; macronutrient intake included 48% ± 5% carbohydrate, 36% ± 5% fat, and 16% ± 2% protein. Most youth (56%) reported 3-4 meals/snacks daily (range 1-9). Over 1 year, greater carbohydrate intake was associated with lower A1c (P = 0.0003), more %TBR (P = 0.0006), less %TAR (P = 0.002), and higher CV (P = 0.03). Greater fat intake was associated with higher A1c (P = 0.006), less %TBR (P = 0.002), and more %TAR (P = 0.005). Greater protein intake was associated with higher A1c (P = 0.01). More daily meals/snacks were associated with lower A1c (P = 0.001), higher %TIR (P = 0.0006), and less %TAR (P = 0.0001). Conclusions: Both fat and protein impact glycemic outcomes. Future automated insulin delivery systems should consider all macronutrients for timely insulin provision. The present research study derived from secondary analysis of the study registered under NCT00999375.


Subject(s)
Blood Glucose , Diabetes Mellitus, Type 1 , Insulin , Meals , Humans , Diabetes Mellitus, Type 1/blood , Diabetes Mellitus, Type 1/drug therapy , Male , Adolescent , Female , Child , Blood Glucose/analysis , Insulin/administration & dosage , Insulin/therapeutic use , Glycated Hemoglobin/analysis , Nutrients/administration & dosage , Hypoglycemic Agents/administration & dosage , Hypoglycemic Agents/therapeutic use , Dietary Carbohydrates/administration & dosage , Blood Glucose Self-Monitoring , Glycemic Control , Insulin Infusion Systems , Energy Intake , Dietary Fats/administration & dosage
6.
Diabetes Technol Ther ; 26(1): 11-23, 2024 Jan.
Article in English | MEDLINE | ID: mdl-37850941

ABSTRACT

Background: The Omnipod® 5 Automated Insulin Delivery (AID) System was shown to be safe and effective following 3 months of use in people with type 1 diabetes (T1D); however, data on the durability of these results are limited. This study evaluated the long-term safety and effectiveness of Omnipod 5 use in people with T1D during up to 2 years of use. Materials and Methods: After a 3-month single-arm, multicenter, pivotal trial in children (6-13.9 years) and adolescents/adults (14-70 years), participants could continue system use in an extension phase. HbA1c was measured every 3 months for up to 15 months; continuous glucose monitor metrics were collected for up to 2 years. Results: Participants (N = 224) completed median (interquartile range) 22.3 (21.7, 22.7) months of AID. HbA1c was reduced in the pivotal trial from 7.7% ± 0.9% in children and 7.2% ± 0.9% in adolescents/adults to 7.0% ± 0.6% and 6.8% ± 0.7%, respectively, (P < 0.0001), and was maintained at 7.2% ± 0.7% and 6.9% ± 0.6% after 15 months (P < 0.0001 from baseline). Time in target range (70-180 mg/dL) increased from 52.4% ± 15.6% in children and 63.6% ± 16.5% in adolescents/adults at baseline to 67.9% ± 8.0% and 73.8% ± 10.8%, respectively, during the pivotal trial (P < 0.0001) and was maintained at 65.9% ± 8.9% and 72.9% ± 11.3% during the extension (P < 0.0001 from baseline). One episode of diabetic ketoacidosis and seven episodes of severe hypoglycemia occurred during the extension. Children and adolescents/adults spent median 96.1% and 96.3% of time in Automated Mode, respectively. Conclusion: Our study supports that long-term use of the Omnipod 5 AID System can safely maintain improvements in glycemic outcomes for up to 2 years of use in people with T1D. Clinical Trials Registration Number: NCT04196140.


Subject(s)
Diabetes Mellitus, Type 1 , Adult , Child , Humans , Adolescent , Diabetes Mellitus, Type 1/drug therapy , Hypoglycemic Agents/therapeutic use , Insulin/therapeutic use , Glycated Hemoglobin , Insulin Infusion Systems , Blood Glucose , Blood Glucose Self-Monitoring
7.
Int J Behav Nutr Phys Act ; 10: 125, 2013 Nov 06.
Article in English | MEDLINE | ID: mdl-24195642

ABSTRACT

BACKGROUND: Constructs based on Social Cognitive Theory have shown utility in understanding dietary behavior; however, little research has examined these relations in youth and parents concurrently. Unique demands of dietary management among families of youth with type 1 diabetes (T1D) suggest the importance of investigation in this population. The purpose of this study was to develop and evaluate youth and parent measures of self-efficacy, outcome expectations, and barriers for healthful eating, and parent modeling of healthful eating, in a sample of youth with type 1 diabetes and their parents. METHODS: Youth (n=252) ages 8-18 years with diabetes duration ≥1 year and parents completed self-report measures of healthful eating attitudes including self-efficacy, perceived barriers, positive and negative outcome expectations; youth reported parent modeling of healthful eating. Youth dietary intake from 3-day diet records was used to calculate the Healthy Eating Index 2005 and the Nutrient Rich Foods 9.3 index, measures of overall diet quality. The relations among parent and youth healthful eating attitudes, parent modeling, and youth diet quality were examined using structural equation modeling. RESULTS: Internal consistency and test-retest reliability of the measures were acceptable. The structural equation model demonstrated acceptable fit (CFI/TLI=0.94/0.94; RMSEA=0.03), and items loaded the hypothesized factors. Parent modeling ß^=.27,p=.02 and attitudes toward healthful eating (latent variable comprised of self-efficacy, barriers, outcome expectations) ß^=.16,p=.04 had direct effects on youth diet quality. Parent modeling had a direct effect on youth attitudes ß^=.49,p<.001; parent attitudes had an indirect effect on youth attitudes through parent modeling ß^=.12,p,<.001. Youth attitudes were not associated with youth diet quality. Overall, the model accounted for 20% of the variance in child diet quality. CONCLUSIONS: Parent diet-related behaviors demonstrated an impact on youth attitudes and diet quality, suggesting the importance of family-based clinical and public health efforts to improve diet.


Subject(s)
Diabetes Mellitus, Type 1/epidemiology , Feeding Behavior/psychology , Health Behavior , Health Knowledge, Attitudes, Practice , Parent-Child Relations , Adolescent , Child , Cross-Sectional Studies , Diabetes Mellitus, Type 1/psychology , Diet/psychology , Diet Records , Female , Humans , Male , Parents , Reproducibility of Results , Self Efficacy , Socioeconomic Factors
8.
Pediatr Diabetes ; 13(3): 278-84, 2012 May.
Article in English | MEDLINE | ID: mdl-22060802

ABSTRACT

BACKGROUND AND OBJECTIVE: Serum 1,5-anhydroglucitol (1,5-AG) is a marker of hyperglycemic excursions in adults with diabetes and hemoglobin A1c (HbA1c) < 8%. We compared 1,5-AG levels among youth and young adults with and without type 1 diabetes (T1D) and investigated the utility of 1,5-AG in the assessment of glycemic status in pediatric T1D. METHODS: We compared 1,5-AG, HbA1c, and plasma glucose levels in 138 patients with T1D (duration ≥1 yr) and 136 healthy controls, aged 10-30 yr. Within each group, we investigated associations between 1,5-AG and clinical characteristics, HbA1c and random plasma glucose. For patients with T1D, 1,5-AG was further analyzed according to HbA1c strata: <8, 8-9, and >9%. RESULTS: Compared to controls, patients with T1D had higher HbA1c (8.5 ± 1.6 vs. 5.1 ± 0.4%, p < 0.0001), lower 1,5-AG (4.0 ± 2.0 vs. 24.7 ± 6.4 µg/mL, p < 0.0001), and higher glucose (11.1 ± 5.2 vs. 5.1 ± 0.9 mmol/L, p < 0.0001). Males had higher 1,5-AG than females within patients (4.5 ± 2.3 vs. 3.4 ± 1.6 µg/mL, p = 0.003) and controls (26.0 ± 6.6 vs. 23.5 ± 6.0 µg/mL, p = 0.02). 1,5-AG was not correlated with glucose in either group. 1,5-AG was significantly correlated to HbA1c in patients, but not controls. For patients with HbA1c < 8%, 1,5-AG demonstrated the widest range and was not predicted by HbA1c; 1,5-AG levels were narrowly distributed among patients with HbA1c ≥ 8%. CONCLUSIONS: Youth and young adults with T1D demonstrate similar 1,5-AG levels which are distinct from controls. 1,5-AG assessment may provide unique information beyond that provided by HbA1c in the mid-term assessment of glycemic control in young patients with T1D and HbA1c < 8%.


Subject(s)
Blood Glucose/metabolism , Deoxyglucose/blood , Diabetes Mellitus, Type 1/blood , Glycated Hemoglobin/metabolism , Adolescent , Adult , Child , Cohort Studies , Female , Humans , Male
9.
Diabetes Care ; 45(7): 1549-1557, 2022 07 07.
Article in English | MEDLINE | ID: mdl-35796766

ABSTRACT

OBJECTIVE: Medicare Advantage (MA), Medicare's managed care program, is quickly expanding, yet little is known about diabetes care quality delivered under MA compared with traditional fee-for-service (FFS) Medicare. RESEARCH DESIGN AND METHODS: This was a retrospective cohort study of Medicare beneficiaries ≥65 years old enrolled in the Diabetes Collaborative Registry from 2014 to 2019 with type 2 diabetes treated with one or more antihyperglycemic therapies. Quality measures, cardiometabolic risk factor control, and antihyperglycemic prescription patterns were compared between Medicare plan groups, adjusted for sociodemographic and clinical factors. RESULTS: Among 345,911 Medicare beneficiaries, 229,598 (66%) were enrolled in FFS and 116,313 (34%) in MA plans (for ≥1 month). MA beneficiaries were more likely to receive ACE inhibitors/angiotensin receptor blockers for coronary artery disease, tobacco cessation counseling, and screening for retinopathy, foot care, and kidney disease (adjusted P ≤ 0.001 for all). MA beneficiaries had modestly but significantly higher systolic blood pressure (+0.2 mmHg), LDL cholesterol (+2.6 mg/dL), and HbA1c (+0.1%) (adjusted P < 0.01 for all). MA beneficiaries were independently less likely to receive glucagon-like peptide 1 receptor agonists (6.9% vs. 9.0%; adjusted odds ratio 0.80, 95% CI 0.77-0.84) and sodium-glucose cotransporter 2 inhibitors (5.4% vs. 6.7%; adjusted odds ratio 0.91, 95% CI 0.87-0.95). When integrating Centers for Medicare and Medicaid Services-linked data from 2014 to 2017 and more recent unlinked data from the Diabetes Collaborative Registry through 2019 (total N = 411,465), these therapeutic differences persisted, including among subgroups with established cardiovascular and kidney disease. CONCLUSIONS: While MA plans enable greater access to preventive care, this may not translate to improved intermediate health outcomes. MA beneficiaries are also less likely to receive newer antihyperglycemic therapies with proven outcome benefits in high-risk individuals. Long-term health outcomes under various Medicare plans requires surveillance.


Subject(s)
Diabetes Mellitus, Type 2 , Medicare Part C , Aged , Diabetes Mellitus, Type 2/drug therapy , Fee-for-Service Plans , Humans , Hypoglycemic Agents/therapeutic use , Registries , Retrospective Studies , United States
10.
Diabetes Res Clin Pract ; 190: 109998, 2022 Aug.
Article in English | MEDLINE | ID: mdl-35853530

ABSTRACT

AIMS: To evaluate psychosocial outcomes for adults with type 1 diabetes (T1D) using the tubeless Omnipod® 5 Automated Insulin Delivery (AID) System. METHODS: A single-arm, multicenter (across the United States), prospective safety and efficacy study of the tubeless AID system included 115 adults with T1D. Participants aged 18-70 years completed questionnaires assessing psychosocial outcomes - diabetes distress (T1-DDS), hypoglycemic confidence (HCS), well-being (WHO-5), sleep quality (PSQI), insulin delivery satisfaction (IDSS), diabetes treatment satisfaction (DTSQ), and system usability (SUS) - before and after 3 months of AID use. Associations among participant characteristics, psychosocial measures and glycemic outcomes were evaluated using linear regression analyses. RESULTS: Adults using the tubeless AID system demonstrated improvements in diabetes-specific psychosocial measures, including diabetes distress, hypoglycemic confidence, insulin delivery satisfaction, diabetes treatment satisfaction, and system usability after 3 months (all P < 0.001). No changes in general well-being or sleep quality were observed. The psychosocial outcomes assessed were not consistently associated with baseline participant characteristics (i.e., age, sex, diabetes duration, glycemic outcomes including percent time in range 70-180 mg/dL, percent time below range < 70 mg/dL, hemoglobin A1c, or insulin regimen). CONCLUSIONS: Use of the Omnipod 5 AID system was associated with significant improvements in diabetes-related psychosocial outcomes for adults with T1D. CLINICAL TRIALS REGISTRATION NUMBER: NCT04196140.


Subject(s)
Diabetes Mellitus, Type 1 , Adult , Blood Glucose , Blood Glucose Self-Monitoring , Diabetes Mellitus, Type 1/drug therapy , Diabetes Mellitus, Type 1/psychology , Humans , Hypoglycemic Agents/therapeutic use , Insulin/therapeutic use , Insulin Infusion Systems , Insulin, Regular, Human/therapeutic use , Prospective Studies
11.
Am J Manag Care ; 27(3): 96-102, 2021 03.
Article in English | MEDLINE | ID: mdl-33720666

ABSTRACT

OBJECTIVES: To (1) examine the impact of the Diabetes Care Rewards (DCR) program on adherence to care standards and (2) evaluate the economic impact of adherence to care standards. STUDY DESIGN: A retrospective observational cohort study design with propensity matching. Additional covariates adjustment was used to minimize residual imbalance. METHODS: Utilization and cost data were compared between individuals enrolled vs individuals eligible for but not enrolled in the DCR program using a standard mean difference. Individuals were employees or their dependents from self-insured companies throughout the United States. Outcomes included adherence to the care standards, service utilization, and costs. RESULTS: A total of 3318 propensity-matched participants were included. Primary analysis revealed that enrolled members increased adherence to semiannual glycated hemoglobin, annual lipid, and annual urine albumin-creatinine ratio testing. Additionally, enrolled members experienced less utilization of high-acuity services and increased rates of physician visits. In a secondary analysis, the enrolled group was associated with greater pharmaceutical costs but lower medical costs. CONCLUSIONS: A behavioral science- and incentive-based diabetes management program was associated with greater rates of adherence to recommended diabetes monitoring care standards, increased routine clinic visits, decreased hospital admissions, and decreased inpatient days. Anticipated increases in pharmaceutical expenditures were offset by overall lower medical expenditures. Results indicate the economic benefits of adherence to evidence-based standards for diabetes care.


Subject(s)
Diabetes Mellitus , Diabetes Mellitus/therapy , Glycated Hemoglobin/analysis , Health Care Costs , Health Expenditures , Hospitalization , Humans , Retrospective Studies , United States
12.
Diabetes Care ; 44(7): 1630-1640, 2021 07.
Article in English | MEDLINE | ID: mdl-34099518

ABSTRACT

OBJECTIVE: Advances in diabetes technology have transformed the treatment paradigm for type 1 diabetes, yet the burden of disease is significant. We report on a pivotal safety study of the first tubeless, on-body automated insulin delivery system with customizable glycemic targets. RESEARCH DESIGN AND METHODS: This single-arm, multicenter, prospective study enrolled 112 children (age 6-13.9 years) and 129 adults (age 14-70 years). A 2-week standard therapy phase (usual insulin regimen) was followed by 3 months of automated insulin delivery. Primary safety outcomes were incidence of severe hypoglycemia and diabetic ketoacidosis. Primary effectiveness outcomes were change in HbA1c and percent time in sensor glucose range 70-180 mg/dL ("time in range"). RESULTS: A total of 235 participants (98% of enrolled, including 111 children and 124 adults) completed the study. HbA1c was significantly reduced in children by 0.71% (7.8 mmol/mol) (mean ± SD: 7.67 ± 0.95% to 6.99 ± 0.63% [60 ± 10.4 mmol/mol to 53 ± 6.9 mmol/mol], P < 0.0001) and in adults by 0.38% (4.2 mmol/mol) (7.16 ± 0.86% to 6.78 ± 0.68% [55 ± 9.4 mmol/mol to 51 ± 7.4 mmol/mol], P < 0.0001). Time in range was improved from standard therapy by 15.6 ± 11.5% or 3.7 h/day in children and 9.3 ± 11.8% or 2.2 h/day in adults (both P < 0.0001). This was accomplished with a reduction in time in hypoglycemia <70 mg/dL among adults (median [interquartile range]: 2.00% [0.63, 4.06] to 1.09% [0.46, 1.75], P < 0.0001), while this parameter remained the same in children. There were three severe hypoglycemia events not attributable to automated insulin delivery malfunction and one diabetic ketoacidosis event from an infusion site failure. CONCLUSIONS: This tubeless automated insulin delivery system was safe and allowed participants to significantly improve HbA1c levels and time in target glucose range with a very low occurrence of hypoglycemia.


Subject(s)
Diabetes Mellitus, Type 1 , Insulin , Adolescent , Adult , Aged , Blood Glucose , Child , Diabetes Mellitus, Type 1/drug therapy , Glycated Hemoglobin/analysis , Humans , Hypoglycemic Agents , Insulin Infusion Systems , Middle Aged , Prospective Studies , Young Adult
13.
J Diabetes Complications ; 34(8): 107591, 2020 08.
Article in English | MEDLINE | ID: mdl-32471789

ABSTRACT

AIMS: To compare cardiovascular risk factor control in adults with diabetes participating in a national diabetes registry to those in the general population and to ascertain regional differences in diabetes care. METHODS: Adults with diagnosed diabetes in the Diabetes Collaborative Registry (DCR) were compared with those in the National Health and Nutrition Examination Survey (NHANES) from 2015 to 2016; standardized mean difference (SMD) > 0.2 defined significance. Regional differences were assessed in the DCR cohort; p < .05 defined significance. RESULTS: The DCR cohort was older (61 vs. 57 years, SMD = 0.38), more insured (99.7% vs. 91.0%, SMD = 0.42), and less ethnically diverse (83% non-Hispanic white vs. 76%, SMD = 0.30) compared with NHANES. The proportion of overweight/obesity, A1c < 7% (<53 mmol/mol), and BP < 140/90 were similar, but DCR participants had higher proportion with LDL < 2.59 mmol/L (61% vs. 41%, SMD = 0.39) and fewer tobacco users (17% vs. 32%, SMD = 0.35). Regionally, obesity, lack of glycaemic control, and tobacco use were highest in the Midwest, BP control was the lowest in the South, and LDL control was lowest in the Northeast. CONCLUSIONS: Significant regional differences in diabetes care delivery and outcomes were identified using a national diabetes registry. Serial analyses of the DCR may supplement national evaluations to deepen our understanding of diabetes care in the US.


Subject(s)
Cardiovascular Diseases/epidemiology , Cardiovascular Diseases/prevention & control , Diabetes Complications/prevention & control , Adult , Aged , Cardiovascular Diseases/diagnosis , Cohort Studies , Diabetes Complications/diagnosis , Diabetes Complications/epidemiology , Female , Heart Disease Risk Factors , Humans , Male , Middle Aged , Registries , Risk Factors , Surveys and Questionnaires , United States/epidemiology
14.
J Clin Endocrinol Metab ; 105(5)2020 05 01.
Article in English | MEDLINE | ID: mdl-31955209

ABSTRACT

CONTEXT: Cardiovascular disease (CVD) is a major cause of mortality in adults with type 1 diabetes. OBJECTIVE: We prospectively evaluated CVD risk factors in a large, contemporary cohort of adults with type 1 diabetes living in the United States. DESIGN: Observational study of CVD and CVD risk factors over a median of 5.3 years. SETTING: The T1D Exchange clinic network. PATIENTS: Adults (age ≥ 18 years) with type 1 diabetes and without known CVD diagnosed before or at enrollment. MAIN OUTCOME MEASURE: Associations between CVD risk factors and incident CVD were assessed by multivariable logistic regression. RESULTS: The study included 8,727 participants (53% female, 88% non-Hispanic white, median age 33 years [interquartile ratio {IQR} = 21, 48], type 1 diabetes duration 16 years [IQR = 9, 26]). At enrollment, median HbA1c was 7.6% (66 mmol/mol) (IQR = 6.9 [52], 8.6 [70]), 33% used a statin, and 37% used blood pressure medication. Over a mean follow-up of 4.6 years, 325 (3.7%) participants developed incident CVD. Ischemic heart disease was the most common CVD event. Increasing age, body mass index, HbA1c, presence of hypertension and dyslipidemia, increasing duration of diabetes, and diabetic nephropathy were associated with increased risk for CVD. There were no significant gender differences in CVD risk. CONCLUSION: HbA1c, hypertension, dyslipidemia and diabetic nephropathy are important risk factors for CVD in adults with type 1 diabetes. A longer follow-up is likely required to assess the impact of other traditional CVD risk factors on incident CVD in the current era.


Subject(s)
Cardiovascular Diseases/etiology , Diabetes Mellitus, Type 1/complications , Heart Disease Risk Factors , Adult , Cardiovascular Diseases/epidemiology , Cohort Studies , Diabetes Mellitus, Type 1/epidemiology , Diabetic Angiopathies/epidemiology , Diabetic Angiopathies/etiology , Female , Humans , Male , Middle Aged , Prospective Studies , Registries , Risk Factors , United States/epidemiology , Young Adult
15.
J Am Geriatr Soc ; 66(6): 1190-1194, 2018 07.
Article in English | MEDLINE | ID: mdl-29633237

ABSTRACT

OBJECTIVES: To examine the proportion of older adults with diabetes mellitus treated with tight glucose control and the factors associated with this practice. DESIGN: Cross-sectional analysis. SETTING: Outpatient sites in the Diabetes Collaborative Registry (N=151). PARTICIPANTS: Adults aged 75 and older with type 2 diabetes mellitus (N=42,669). MEASUREMENTS: Participants were categorized based on glycosylated hemoglobin (HbA1c) and glucose-lowering medications: poor control (HbA1c >9%), moderate control (HbA1c 8-9%), conservative control (HbA1c 7-8%), tight control (HbA1c <7%) with low-risk agents (low risk for hypoglycemia), tight control with high-risk agents, and diet control (HbA1c <7% taking no glucose-lowering medications). We used hierarchical logistic regression to examine participant and site factors associated with tight control and high-risk agents versus conservative or tight control and low-risk agents. RESULTS: Of 30,696 participants without diet-controlled diabetes, 5,596 (18%) had moderate or poor control, 9,227 (30%) had conservative control, 7,893 (26%) had tight control taking low-risk agents, and 7,980 (26%) had tight control taking high-risk agents. Older age, male sex, heart failure, chronic kidney disease, and coronary artery disease were each independently associated with greater odds of tight control with high-risk agents. There were no differences according to practice specialty (endocrinology, primary care, cardiology) in how aggressively participants were managed. CONCLUSION: One-quarter of U.S. older adults with type 2 diabetes mellitus are tightly controlled with glucose-lowering medications that have a high risk of hypoglycemia. These results suggest potential overtreatment of a substantial proportion of people and should encourage further efforts to translate guidelines to daily practice.


Subject(s)
Diabetes Mellitus, Type 2 , Glycated Hemoglobin/analysis , Hypoglycemia , Hypoglycemic Agents , Risk Adjustment/methods , Aged , Blood Glucose/analysis , Cross-Sectional Studies , Diabetes Mellitus, Type 2/blood , Diabetes Mellitus, Type 2/complications , Diabetes Mellitus, Type 2/epidemiology , Diabetes Mellitus, Type 2/therapy , Diet, Diabetic/methods , Female , Humans , Hypoglycemia/chemically induced , Hypoglycemia/diagnosis , Hypoglycemia/prevention & control , Hypoglycemic Agents/administration & dosage , Hypoglycemic Agents/adverse effects , Hypoglycemic Agents/classification , Male , Risk Assessment , United States/epidemiology
16.
Diabetes Care ; 41(4): 869-875, 2018 04.
Article in English | MEDLINE | ID: mdl-29371234

ABSTRACT

OBJECTIVE: This study examines whether participation in an 18-month behavioral intervention shown previously to improve overall diet quality inadvertently increases disordered eating behaviors (DEBs) in youth with type 1 diabetes and investigates the association of DEB with multiple measures of glycemic control and variability. RESEARCH DESIGN AND METHODS: Participants reported DEB and diabetes management at baseline and 6, 12, and 18 months; masked continuous glucose monitoring, HbA1c, and 1,5-anhydroglucitol (1,5-AG) were obtained concurrently. Linear mixed models estimated the intervention effect on DEB, the association of DEB with diabetes adherence and measures of glycemic control and variability, and whether DEB modified glycemic trajectories. RESULTS: There was no intervention effect on DEB (P = 0.84). DEB was associated with higher HbA1c (P = 0.001), mean sensor glucose (P = 0.001), and percent sensor glucose values >180 mg/dL (P = <0.001); with lower 1,5-AG (P = 0.01); and with worse diabetes adherence (P = 0.03). DEB was not associated with percent sensor glucose values <70 mg/dL or any measures of glycemic variability. There was a significant DEB × time interaction effect for mean sensor glucose (P = 0.05) and percent sensor glucose values >180 mg/dL (P = 0.04). Participants reporting less DEB had a developmentally expected deterioration in glycemic control throughout the study. Participants reporting more DEB had poor glycemic control at baseline that remained poor throughout the study. CONCLUSIONS: Findings show a potential to improve diet quality without increasing DEB and indicate an association of DEB with persistent hyperglycemia but not hypoglycemia or glycemic variability.


Subject(s)
Diabetes Mellitus, Type 1/diet therapy , Diet, Healthy , Health Behavior , Hyperglycemia/diet therapy , Adolescent , Blood Glucose/metabolism , Boston , Child , Diabetes Mellitus, Type 1/blood , Diabetes Mellitus, Type 1/drug therapy , Dose-Response Relationship, Drug , Feeding and Eating Disorders , Female , Glycated Hemoglobin/metabolism , Humans , Hyperglycemia/drug therapy , Insulin/blood , Insulin/therapeutic use , Insulin Infusion Systems , Male , Surveys and Questionnaires
17.
J Diabetes Complications ; 32(11): 1035-1039, 2018 Nov.
Article in English | MEDLINE | ID: mdl-30177468

ABSTRACT

BACKGROUND: Although practice guidelines stress individualization of glucose management in patients with type 2 diabetes (T2D), the extent to which providers take patient factors into account when selecting medications is not well known. METHODS: Diabetes Collaborative Registry (DCR) is an outpatient diabetes registry including primary care, cardiology, and endocrinology practices. T2D medications were grouped as those which may be suboptimal for key patient subgroups, and we examined patient factors associated with use of these agents using hierarchical, multivariable Poisson models. RESULTS: In DCR, 157,551 patients from 374 US practices were prescribed a glucose-lowering medication. Patients with morbid obesity were more likely treated with medications prone to cause weight gain (relative rate [RR] 1.09, 95% CI 1.07-1.11). Older patients were more likely to be treated with medications with increased risk of hypoglycemia (RR 1.04 per 5 years, 95% CI 1.04-1.05). Patients with CKD 4/5 were less likely to be treated with agents with known risk in patients with advanced CKD (RR 0.74, 95% CI 0.71-0.77). Patients with coronary artery disease were no more or less likely to be treated with medications with potential cardiovascular safety issues (RR 0.99, 95% CI 0.96-1.01). CONCLUSIONS: We observed some targeted use of glucose-lowering therapies in certain subgroups but also identified potential opportunities for better personalization of treatment. Data sources such as the DCR can highlight potential areas for improving targeted approaches to pharmacologic therapy in order to optimize selection of patients most likely to benefit (and least likely to be harmed) from treatments.


Subject(s)
Diabetes Mellitus, Type 2/drug therapy , Drug Utilization , Hypoglycemic Agents/therapeutic use , Practice Patterns, Physicians'/statistics & numerical data , Precision Medicine/statistics & numerical data , Aged , Aged, 80 and over , Cohort Studies , Cooperative Behavior , Diabetes Mellitus, Type 2/epidemiology , Drug Utilization/standards , Drug Utilization/statistics & numerical data , Female , Humans , Male , Middle Aged , Practice Patterns, Physicians'/standards , Precision Medicine/methods , Quality Improvement , Registries , United States/epidemiology
18.
Med Care Res Rev ; 75(1): 46-65, 2018 02.
Article in English | MEDLINE | ID: mdl-27789628

ABSTRACT

Care management (CM) is a promising team-based, patient-centered approach "designed to assist patients and their support systems in managing medical conditions more effectively." As little is known about its implementation, this article describes CM implementation and associated lessons from 12 Agency for Healthcare Research and Quality-sponsored projects. Two rounds of data collection resulted in project-specific narratives that were analyzed using an iterative approach analogous to framework analysis. Informants also participated as coauthors. Variation emerged across practices and over time regarding CM services provided, personnel delivering these services, target populations, and setting(s). Successful implementation was characterized by resource availability (both monetary and nonmonetary), identifying as well as training employees with the right technical expertise and interpersonal skills, and embedding CM within practices. Our findings facilitate future context-specific implementation of CM within medical homes. They also inform the development of medical home recognition programs that anticipate and allow for contextual variation.


Subject(s)
Continuity of Patient Care/organization & administration , Health Plan Implementation/methods , Patient-Centered Care/organization & administration , Primary Health Care/organization & administration , United States Agency for Healthcare Research and Quality , Humans , United States
19.
J Diabetes Sci Technol ; 11(1): 83-86, 2017 01.
Article in English | MEDLINE | ID: mdl-27402243

ABSTRACT

BACKGROUND: Historically, intensive insulin therapy for type 1 diabetes (T1D) has improved glycemic control at the risk of adverse weight gain. The impact of continuous subcutaneous insulin infusion therapy (CSII) on weight in the current era remains unknown. We assessed changes in hemoglobin A1c (HbA1c) and weight in adults with T1D transitioning to CSII at 2 diabetes centers in Denmark and the United States. METHODS: Patients with T1D, aged ≥18 years, managed with multiple daily injections (MDI) who transitioned to CSII between 2002 and 2013 were identified using electronic health record data from the Steno Diabetes Center (n = 600) and Joslin Diabetes Center (n = 658). Changes in HbA1c and weight after 1 year was assessed overall and by baseline HbA1c cut points. Multivariate regression assessed correlates of HbA1c reduction. RESULTS: In adults with T1D transitioning to CSII, clinically significant HbA1c reductions were found in patients with baseline HbA1c 8.0-8.9% (Steno, -0.7%; Joslin, -0.4%) and baseline HbA1c ≥9.0% (Steno, -1.1%; Joslin, -0.9%) ( P < .005 for all). Overall, there was no significant change in weight after 1 year at either center. Modest (<2%) weight gain was noted in patients with baseline HbA1c ≥9% at Steno (1.1 ± 0.3 kg, P < .0001) and Joslin (1.7 ± 1.1, P < .005). In multivariate models, HbA1c reduction was associated with higher HbA1c, older age, female sex at Steno ( R2 = .28, P < .005), but only higher baseline HbA1c at Joslin ( R2 = .19, P < .005). CONCLUSION: Adults with T1D with suboptimal glycemic control significantly improved HbA1c without a negative impact on weight 1 year after transitioning from MDI to CSII.


Subject(s)
Diabetes Mellitus, Type 1/drug therapy , Glycated Hemoglobin/analysis , Hypoglycemic Agents/administration & dosage , Insulin/administration & dosage , Weight Gain/drug effects , Adolescent , Adult , Aged , Denmark , Diabetes Mellitus, Type 1/blood , Female , Humans , Insulin Infusion Systems , Male , Middle Aged , Transition to Adult Care , United States , Young Adult
20.
Eur J Prev Cardiol ; 24(15): 1637-1645, 2017 10.
Article in English | MEDLINE | ID: mdl-28870145

ABSTRACT

Aims Recent trials (EMPA-REG OUTCOME and Liraglutide Effect and Action in Diabetes: Evaluation of Cardiovascular Outcome Results [LEADER]) have shown improved cardiovascular (CV) mortality with specific currently available glucose-lowering medications (empagliflozin and liraglutide, respectively), but were limited to selected patient populations. We sought to evaluate the current use and potential real-world impact of empagliflozin (and other sodium-glucose co-transporter 2 inhibitors [SGLT2is]) and liraglutide (and other glucagonlike peptide-1 receptor agonist [GLP-1 RAs]) among patients in the Diabetes Collaborative Registry (DCR). Methods and results We evaluated 182,525 patients from the DCR - a large, US-based outpatient registry of individuals with type 2 diabetes from 313 sites that included cardiology, endocrinology and primary care practices. Among these patients, 26.2% met major eligibility criteria for EMPA-REG OUTCOME and 48.0% met major eligibility criteria for LEADER. Of these potentially eligible patients, only a small minority were actually prescribed these agents: 5.2% on an SGLT2i and 6.0% on a GLP-1 RA, respectively. Patients receiving these studied medications or medication classes, in general, had lower CV disease burden compared with those not on these agents. Assuming similar risk reductions as in the clinical trials, if all potentially trial-eligible patients in the DCR were treated for 1 year with empagliflozin (or other SGLT2is, assuming a class effect) or liraglutide (or other GLP-1 RAs, assuming a class effect), this may have prevented 354 CV deaths, 231 heart failure hospitalizations, 329 CV deaths and 247 myocardial infarctions, respectively. Conclusion In a large, US-based outpatient registry, we found a significant number of patients would have been potentially eligible for glucose-lowering agents that demonstrated CV benefit in recent clinical trials. In view of these findings, a broader and better-targeted use of these medications in evidence-based patient populations should be considered.


Subject(s)
Blood Glucose/drug effects , Cardiovascular Diseases/prevention & control , Diabetes Mellitus, Type 2/drug therapy , Hypoglycemic Agents/therapeutic use , Prediabetic State/drug therapy , Aged , Biomarkers/blood , Blood Glucose/metabolism , Cardiovascular Diseases/blood , Cardiovascular Diseases/diagnosis , Cardiovascular Diseases/mortality , Clinical Decision-Making , Diabetes Mellitus, Type 2/blood , Diabetes Mellitus, Type 2/diagnosis , Diabetes Mellitus, Type 2/mortality , Eligibility Determination , Evidence-Based Medicine , Female , Glucagon-Like Peptide-1 Receptor/agonists , Glucagon-Like Peptide-1 Receptor/metabolism , Glycated Hemoglobin/metabolism , Humans , Hypoglycemic Agents/adverse effects , Male , Middle Aged , Patient Selection , Prediabetic State/blood , Prediabetic State/diagnosis , Prediabetic State/mortality , Protective Factors , Registries , Risk Factors , Sodium-Glucose Transporter 2/metabolism , Sodium-Glucose Transporter 2 Inhibitors , Time Factors , Treatment Outcome , United States/epidemiology
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