es

Red and Processed Meats and Health Risks: How Strong Is the Evidence?

Frank Qian
Feb 1, 2020; 43:265-271
Perspectives in Care




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Efficacy and Safety of Cannabidiol and Tetrahydrocannabivarin on Glycemic and Lipid Parameters in Patients With Type 2 Diabetes: A Randomized, Double-Blind, Placebo-Controlled, Parallel Group Pilot Study

Khalid A. Jadoon
Oct 1, 2016; 39:1777-1786
Emerging Technologies and Therapeutics




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PIONEER 1: Randomized Clinical Trial of the Efficacy and Safety of Oral Semaglutide Monotherapy in Comparison With Placebo in Patients With Type 2 Diabetes

Vanita R. Aroda
Sep 1, 2019; 42:1724-1732
Emerging Therapies: Drugs and Regimens




es

Disclosures: Standards of Medical Care in Diabetes--2020


Jan 1, 2020; 43:S205-S206
Disclosures




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Impact of Fat, Protein, and Glycemic Index on Postprandial Glucose Control in Type 1 Diabetes: Implications for Intensive Diabetes Management in the Continuous Glucose Monitoring Era

Kirstine J. Bell
Jun 1, 2015; 38:1008-1015
Type 1 Diabetes at a Crossroads




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Current Challenges and Opportunities in the Prevention and Management of Diabetic Foot Ulcers

William J. Jeffcoate
Apr 1, 2018; 41:645-652
Perspectives in Care




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Dietary Sugar and Body Weight: Have We Reached a Crisis in the Epidemic of Obesity and Diabetes?: Health Be Damned! Pour on the Sugar

George A. Bray
Apr 1, 2014; 37:950-956
Current Concepts of Type 2 Diabetes Prevention




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The Pros and Cons of Diagnosing Diabetes With A1C

Enzo Bonora
May 1, 2011; 34:S184-S190
Diabetes




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The Diabetes Control and Complications Trial/Epidemiology of Diabetes Interventions and Complications Study at 30 Years: Overview

David M. Nathan
Jan 1, 2014; 37:9-16
DCCT/EDIC 30th Anniversary Summary Findings




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Management of Inpatient Hyperglycemia and Diabetes in Older Adults

Guillermo E. Umpierrez
Apr 1, 2017; 40:509-517
Emerging Science and Concepts for Management of Diabetes and Aging




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Glucose Management Indicator (GMI): A New Term for Estimating A1C From Continuous Glucose Monitoring

Richard M. Bergenstal
Nov 1, 2018; 41:2275-2280
Perspectives in Care




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Cardiovascular Outcomes Trials in Type 2 Diabetes: Where Do We Go From Here? Reflections From a Diabetes Care Editors Expert Forum

William T. Cefalu
Jan 1, 2018; 41:14-31
Diabetes Care Expert Forum




es

What Should Be the Target Blood Pressure in Elderly Patients With Diabetes?

Anna Solini
Aug 1, 2016; 39:S234-S243
VI. Cardiovascular Risk and Diabetes




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Efficacy and Safety of Liraglutide 3.0 mg in Individuals With Overweight or Obesity and Type 2 Diabetes Treated With Basal Insulin: The SCALE Insulin Randomized Controlled Trial

W. Timothy Garvey
May 1, 2020; 43:1085-1093
Emerging Therapies: Drugs and Regimens




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Oral Semaglutide Versus Empagliflozin in Patients With Type 2 Diabetes Uncontrolled on Metformin: The PIONEER 2 Trial

Helena W. Rodbard
Dec 1, 2019; 42:2272-2281
Emerging Therapies: Drugs and Regimens




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The Cost of Diabetes Care--An Elephant in the Room

Matthew C. Riddle
May 1, 2018; 41:929-932
The Costs Of Diabetes




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Diabetes Technology Update: Use of Insulin Pumps and Continuous Glucose Monitoring in the Hospital

Guillermo E. Umpierrez
Aug 1, 2018; 41:1579-1589
Diabetes Care Symposium




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Guideline Approach to Therapy in Patients With Newly Diagnosed Type 2 Diabetes

Itamar Raz
Aug 1, 2013; 36:S139-S144
Diabetes Pathophysiology




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Globalization of Diabetes: The role of diet, lifestyle, and genes

Frank B. Hu
Jun 1, 2011; 34:1249-1257
Kelly West Award Lecture




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2017 National Standards for Diabetes Self-Management Education and Support

Joni Beck
Oct 1, 2017; 40:1409-1419
National Standards




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Treatment of Type 2 Diabetes: From "Guidelines" to "Position Statements" and Back: Recommendations of the Israel National Diabetes Council

Ofri Mosenzon
Aug 1, 2016; 39:S146-S153
II. Diabetes Treatment Options




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Psychosocial Care for People With Diabetes: A Position Statement of the American Diabetes Association

Deborah Young-Hyman
Dec 1, 2016; 39:2126-2140
Psychosocial Research and Care in Diabetes




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Economic Costs of Diabetes in the U.S. in 2017

American Diabetes Association
May 1, 2018; 41:917-928
The Costs Of Diabetes




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2019 Update to: Management of Hyperglycemia in Type 2 Diabetes, 2018. A Consensus Report by the American Diabetes Association (ADA) and the European Association for the Study of Diabetes (EASD)

John B. Buse
Feb 1, 2020; 43:487-493
Consensus Report Update




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Professional Practice Committee: Standards of Medical Care in Diabetes--2020


Jan 1, 2020; 43:S3-S3
Professional Practice Committee




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Nutrition Therapy for Adults With Diabetes or Prediabetes: A Consensus Report

Alison B. Evert
May 1, 2019; 42:731-754
Continuing Evolution of Nutritional Therapy for Diabetes




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Genetic Discrimination Between LADA and Childhood-Onset Type 1 Diabetes Within the MHC

OBJECTIVE

The MHC region harbors the strongest loci for latent autoimmune diabetes in adults (LADA); however, the strength of association is likely attenuated compared with that for childhood-onset type 1 diabetes. In this study, we recapitulate independent effects in the MHC class I region in a population with type 1 diabetes and then determine whether such conditioning in LADA yields potential genetic discriminators between the two subtypes within this region.

RESEARCH DESIGN AND METHODS

Chromosome 6 was imputed using SNP2HLA, with conditional analysis performed in type 1 diabetes case subjects (n = 1,985) and control subjects (n = 2,219). The same approach was applied to a LADA cohort (n = 1,428) using population-based control subjects (n = 2,850) and in a separate replication cohort (656 type 1 diabetes case, 823 LADA case, and 3,218 control subjects).

RESULTS

The strongest associations in the MHC class II region (rs3957146, β [SE] = 1.44 [0.05]), as well as the independent effect of MHC class I genes, on type 1 diabetes risk, particularly HLA-B*39 (β [SE] = 1.36 [0.17]), were confirmed. The conditional analysis in LADA versus control subjects showed significant association in the MHC class II region (rs3957146, β [SE] = 1.14 [0.06]); however, we did not observe significant independent effects of MHC class I alleles in LADA.

CONCLUSIONS

In LADA, the independent effects of MHC class I observed in type 1 diabetes were not observed after conditioning on the leading MHC class II associations, suggesting that the MHC class I association may be a genetic discriminator between LADA and childhood-onset type 1 diabetes.




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Effects of Gender-Affirming Hormone Therapy on Insulin Sensitivity and Incretin Responses in Transgender People

OBJECTIVE

The long-term influences of sex hormone administration on insulin sensitivity and incretin hormones are controversial. We investigated these effects in 35 transgender men (TM) and 55 transgender women (TW) from the European Network for the Investigation of Gender Incongruence (ENIGI) study.

RESEARCH DESIGN AND METHODS

Before and after 1 year of gender-affirming hormone therapy, body composition and oral glucose tolerance tests (OGTTs) were evaluated.

RESULTS

In TM, body weight (2.8 ± 1.0 kg; P < 0.01), fat-free mass (FFM) (3.1 ± 0.9 kg; P < 0.01), and waist-to-hip ratio (–0.03 ± 0.01; P < 0.01) increased. Fasting insulin (–1.4 ± 0.8 mU/L; P = 0.08) and HOMA of insulin resistance (HOMA-IR) (2.2 ± 0.3 vs. 1.8 ± 0.2; P = 0.06) tended to decrease, whereas fasting glucose (–1.6 ± 1.6 mg/dL), glucose-dependent insulinotropic polypeptide (GIP) (–1.8 ± 1.0 pmol/L), and glucagon-like peptide 1 (GLP-1) (–0.2 ± 1.1 pmol/L) were statistically unchanged. Post-OGTT areas under the curve (AUCs) for GIP (2,068 ± 1,134 vs. 2,645 ± 1,248 [pmol/L] x min; P < 0.01) and GLP-1 (2,352 ± 796 vs. 2,712 ± 1,015 [pmol/L] x min; P < 0.01) increased. In TW, body weight tended to increase (1.4 ± 0.8 kg; P = 0.07) with decreasing FFM (–2.3 ± 0.4 kg; P < 0.01) and waist-to-hip ratio (–0.03 ± 0.01; P < 0.01). Insulin (3.4 ± 0.8 mU/L; P < 0.01) and HOMA-IR (1.7 ± 0.1 vs. 2.4 ± 0.2; P < 0.01) rose, fasting GIP (–1.4 ± 0.8 pmol/L; P < 0.01) and AUC GIP dropped (2,524 ± 178 vs. 1,911 ± 162 [pmol/L] x min; P < 0.01), but fasting glucose (–0.3 ± 1.4 mg/dL), GLP-1 (1.3 ± 0.8 pmol/L), and AUC GLP-1 (2,956 ± 180 vs. 2,864 ± 93 [pmol/L] x min) remained unchanged.

CONCLUSIONS

In this cohort of transgender persons, insulin sensitivity but also post-OGTT incretin responses tend to increase with masculinization and to decrease with feminization.




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Steroid Metabolomic Signature of Insulin Resistance in Childhood Obesity

OBJECTIVE

On the basis of urinary steroidal gas chromatography-mass spectrometry (GC-MS), we previously defined a novel concept of a disease-specific "steroid metabolomic signature" and reclassified childhood obesity into five groups with distinctive signatures. The objective of the current study was to delineate the steroidal signature of insulin resistance (IR) in obese children.

RESEARCH DESIGN AND METHODS

Urinary samples of 87 children (44 girls) aged 8.5–17.9 years with obesity (BMI >97th percentile) were quantified for 31 steroid metabolites by GC-MS. Defined as HOMA-IR >95th percentile and fasting glucose-to-insulin ratio >0.3, IR was diagnosed in 20 (of 87 [23%]) of the examined patients. The steroidal fingerprints of subjects with IR were compared with those of obese children without IR (non-IR). The steroidal signature of IR was created from the product of IR – non-IR for each of the 31 steroids.

RESULTS

IR and non-IR groups of children had comparable mean age (13.7 ± 1.9 and 14.6 ± 2.4 years, respectively) and z score BMI (2.7 ± 0.5 and 2.7 ± 0.5, respectively). The steroidal signature of IR was characterized by high adrenal androgens, glucocorticoids, and mineralocorticoid metabolites; higher 5α-reductase (An/Et) (P = 0.007) and 21-hydroxylase [(THE + THF + αTHF)/PT] activity (P = 0.006); and lower 11βHSD1 [(THF + αTHF)/THE] activity (P = 0.012).

CONCLUSIONS

The steroidal metabolomic signature of IR in obese children is characterized by enhanced secretion of steroids from all three adrenal pathways. As only the fasciculata and reticularis are stimulated by ACTH, these findings suggest that IR directly affects the adrenals. We suggest a vicious cycle model, whereby glucocorticoids induce IR, which could further stimulate steroidogenesis, even directly. We do not know whether obese children with IR and the new signature may benefit from amelioration of their hyperadrenalism.




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Redefining Hypoglycemia in Clinical Trials: Validation of Definitions Recently Adopted by the American Diabetes Association/European Association for the Study of Diabetes

OBJECTIVE

To determine if the International Hypoglycaemia Study Group (IHSG) level 2 low glucose definition can identify clinically relevant hypoglycemia in clinical trials and offer value as an end point for future trials.

RESEARCH DESIGN AND METHODS

A post hoc analysis was performed of the SWITCH (SWITCH 1: n = 501, type 1 diabetes; SWITCH 2: n = 721, type 2 diabetes) and DEVOTE (n = 7,637, type 2 diabetes) trials utilizing the IHSG low glucose definitions. Patients in all trials were randomized to either insulin degludec or insulin glargine 100 units/mL. In the main analysis, the following definitions were compared: 1) American Diabetes Association (ADA) 2005 (plasma glucose [PG] confirmed ≤3.9 mmol/L with symptoms); and 2) IHSG level 2 (PG confirmed <3.0 mmol/L, independent of symptoms).

RESULTS

In SWITCH 2, the estimated rate ratios of hypoglycemic events indicated increasing differences between treatments with decreasing PG levels until 3.0 mmol/L, following which no additional treatment differences were observed. Similar results were observed for the SWITCH 1 trial. In SWITCH 2, the IHSG level 2 definition produced a rate ratio that was lower than the ADA 2005 definition.

CONCLUSIONS

The IHSG level 2 definition was validated in a series of clinical trials, demonstrating its ability to discriminate between basal insulins. This definition is therefore recommended to be uniformly adopted by regulatory bodies and used in future clinical trials.




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Vasodilatory Actions of Glucagon-Like Peptide 1 Are Preserved in Skeletal and Cardiac Muscle Microvasculature but Not in Conduit Artery in Obese Humans With Vascular Insulin Resistance

OBJECTIVE

Obesity is associated with microvascular insulin resistance, which is characterized by impaired insulin-mediated microvascular recruitment. Glucagon-like peptide 1 (GLP-1) recruits skeletal and cardiac muscle microvasculature, and this action is preserved in insulin-resistant rodents. We aimed to examine whether GLP-1 recruits microvasculature and improves the action of insulin in obese humans.

RESEARCH DESIGN AND METHODS

Fifteen obese adults received intravenous infusion of either saline or GLP-1 (1.2 pmol/kg/min) for 150 min with or without a euglycemic insulin clamp (1 mU/kg/min) superimposed over the last 120 min. Skeletal and cardiac muscle microvascular blood volume (MBV), flow velocity and blood flow, brachial artery diameter and blood flow, and pulse wave velocity (PWV) were determined.

RESULTS

Insulin failed to change MBV or flow in either skeletal or cardiac muscle, confirming the presence of microvascular insulin resistance. GLP-1 infusion alone increased MBV by ~30% and ~40% in skeletal and cardiac muscle, respectively, with no change in flow velocity, leading to a significant increase in microvascular blood flow in both skeletal and cardiac muscle. Superimposition of insulin to GLP-1 infusion did not further increase MBV or flow in either skeletal or cardiac muscle but raised the steady-state glucose infusion rate by ~20%. Insulin, GLP-1, and GLP-1 + insulin infusion did not alter brachial artery diameter and blood flow or PWV. The vasodilatory actions of GLP-1 are preserved in both skeletal and cardiac muscle microvasculature, which may contribute to improving metabolic insulin responses and cardiovascular outcomes.

CONCLUSIONS

In obese humans with microvascular insulin resistance, GLP-1’s vasodilatory actions are preserved in both skeletal and cardiac muscle microvasculature, which may contribute to improving metabolic insulin responses and cardiovascular outcomes.




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Association of Urine Haptoglobin With Risk of All-Cause and Cause-Specific Mortality in Individuals With Type 2 Diabetes: A Transethnic Collaborative Work

OBJECTIVE

Haptoglobin is an acute-phase reactant with pleiotropic functions. We aimed to study whether urine haptoglobin may predict risk of mortality in people with type 2 diabetes.

RESEARCH DESIGN AND METHODS

We employed a transethnic approach with a cohort of Asian origin (Singapore) (N = 2,061) and a cohort of European origin (France) (N = 1,438) included in the study. We used survival analyses to study the association of urine haptoglobin with risk of all-cause and cause-specific mortality.

RESULTS

A total of 365 and 525 deaths were registered in the Singapore cohort (median follow-up 7.5 years [interquartile range 3.5–12.8]) and French SURDIAGENE cohort (median follow-up 6.8 years [interquartile range 4.3–10.5], respectively. Singapore participants with urine haptoglobin in quartiles 2 to 4 had higher risk for all-cause mortality compared with quartile 1 (unadjusted hazard ratio [HR] 1.47 [95% CI 1.02–2.11], 2.28 [1.62–3.21], and 4.64 [3.39–6.35], respectively). The association remained significant in quartile 4 after multiple adjustments (1.68 [1.15–2.45]). Similarly, participants in the French cohort with haptoglobin in quartile 4 had significantly higher hazards for all-cause mortality compared with quartile 1 (unadjusted HR 2.67 [2.09–3.42] and adjusted HR 1.49 [1.14–1.96]). In both cohorts, participants in quartile 4 had a higher risk of mortality attributable to cardiovascular disease and infection but not malignant tumor.

CONCLUSIONS

Urine haptoglobin predicts risk of mortality independent of traditional risk factors, suggesting that it may potentially be a novel biomarker for risk of mortality in patients with type 2 diabetes.




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ACE and Type 2 Diabetes Risk: A Mendelian Randomization Study

OBJECTIVE

To determine whether ACE inhibitors reduce the risk of type 2 diabetes using a Mendelian randomization (MR) approach.

RESEARCH DESIGN AND METHODS

A two-sample MR analysis included 17 independent genetic variants associated with ACE serum concentration in 4,147 participants from the Outcome Reduction with Initial Glargine INtervention (ORIGIN) (clinical trial reg. no. NCT00069784) trial, and their effects on type 2 diabetes risk were estimated from 18 studies of the DIAbetes Genetics Replication And Meta-analysis (DIAGRAM) consortium. A genetic risk score (GRS) underpinning lower ACE concentration was then tested for association with type 2 diabetes prevalence in 341,872 participants, including 16,320 with type 2 diabetes, from the UK Biobank. MR estimates were compared after standardization for blood pressure change, with the estimate obtained from a randomized controlled trial (RCT) meta-analysis of ACE inhibitors versus placebo (n = 31,200).

RESULTS

Genetically lower ACE concentrations were associated with a lower risk of type 2 diabetes (odds ratio [OR] per SD 0.92 [95% CI 0.89–0.95]; P = 1.79 x 10–7). This result was replicated in the UK Biobank (OR per SD 0.97 [0.96–0.99]; P = 8.73 x 10–4). After standardization, the ACE GRS was associated with a larger decrease in type 2 diabetes risk per 2.4-mmHg lower mean arterial pressure (MAP) compared with that obtained from an RCT meta-analysis (OR per 2.4-mmHg lower MAP 0.19 [0.07–0.51] vs. 0.76 [0.60–0.97], respectively; P = 0.007 for difference).

CONCLUSIONS

These results support the causal protective effect of ACE inhibitors on type 2 diabetes risk and may guide therapeutic decision making in clinical practice.




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Leukocyte Telomere Length, DNA Oxidation, and Risk of Lower-Extremity Amputation in Patients With Long-standing Type 1 Diabetes

OBJECTIVE

Telomere shortening and DNA oxidation are associated with premature vascular aging, which may be involved in lower-extremity amputation (LEA). We sought to investigate whether leukocyte telomere length (LTL) and plasma 8-hydroxy-2'-deoxyguanosine (8-OHdG), a biomarker of DNA oxidation, were associated with LEA in subjects with type 1 diabetes at high vascular risk.

RESEARCH DESIGN AND METHODS

LTL (quantitative PCR) and plasma 8-OHdG concentrations (immunoassay method) were assessed at baseline in the GENEDIAB (Génétique de la Néphropathie Diabétique) type 1 diabetes cohort. Logistic and Cox proportional hazards regression models were fitted to estimate odds ratio (OR) (at baseline) and hazard ratio (HR) (during follow-up), with related 95% CI, by increasing biomarker tertiles (T1, T2, T3).

RESULTS

Among 478 participants (56% male, mean ± SD age 45 ± 12 years and diabetes duration 29 ± 10 years), 84 patients had LEA at baseline. Baseline history of LEA was associated with shorter LTL (OR for T2 vs. T1 0.62 [95% CI 0.32–1.22] and for T3 vs. T1 0.41 [0.20–0.84]) but not with plasma 8-OHdG (1.16 [0.56–2.39] and 1.24 [0.61–2.55], respectively). New cases of LEA occurred in 34 (12.3%) participants during the 10-year follow-up. LTL were shorter (HR T2 vs. T1 0.25 [95% CI 0.08–0.67] and T3 vs. T1 0.29 [0.10–0.77]) and plasma 8-OHdG higher (2.20 [0.76–7.35] and 3.11 [1.07–10.32]) in participants who developed LEA during follow-up compared with others. No significant interaction was observed between biomarkers on their association with LEA.

CONCLUSIONS

We report the first independent association between LTL shortening and excess risk of LEA in type 1 diabetes. High plasma 8-OHdG was also associated with incident LEA but partly dependent on cofounding variables.




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Respective Contributions of Glycemic Variability and Mean Daily Glucose as Predictors of Hypoglycemia in Type 1 Diabetes: Are They Equivalent?

OBJECTIVE

To evaluate the respective contributions of short-term glycemic variability and mean daily glucose (MDG) concentration to the risk of hypoglycemia in type 1 diabetes.

RESEARCH DESIGN AND METHODS

People with type 1 diabetes (n = 100) investigated at the University Hospital of Montpellier (France) underwent continuous glucose monitoring (CGM) on two consecutive days, providing a total of 200 24-h glycemic profiles. The following parameters were computed: MDG concentration, within-day glycemic variability (coefficient of variation for glucose [%CV]), and risk of hypoglycemia (presented as the percentage of time spent below three glycemic thresholds: 3.9, 3.45, and 3.0 mmol/L).

RESULTS

MDG was significantly higher, and %CV significantly lower (both P < 0.001), when comparing the 24-h glycemic profiles according to whether no time or a certain duration of time was spent below the thresholds. Univariate regression analyses showed that MDG and %CV were the two explanatory variables that entered the model with the outcome variable (time spent below the thresholds). The classification and regression tree procedure indicated that the predominant predictor for hypoglycemia was %CV when the threshold was 3.0 mmol/L. In people with mean glucose ≤7.8 mmol/L, the time spent below 3.0 mmol/L was shortest (P < 0.001) when %CV was below 34%.

CONCLUSIONS

In type 1 diabetes, short-term glycemic variability relative to mean glucose (i.e., %CV) explains more hypoglycemia than does mean glucose alone when the glucose threshold is 3.0 mmol/L. Minimizing the risk of hypoglycemia requires a %CV below 34%.




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Time Course of Normalization of Functional {beta}-Cell Capacity in the Diabetes Remission Clinical Trial After Weight Loss in Type 2 Diabetes

OBJECTIVE

To assess functional β-cell capacity in type 2 diabetes during 2 years of remission induced by dietary weight loss.

RESEARCH DESIGN AND METHODS

A Stepped Insulin Secretion Test with Arginine was used to quantify functional β-cell capacity by hyperglycemia and arginine stimulation. Thirty-nine of 57 participants initially achieved remission (HbA1c <6.5% [<48 mmol/mol] and fasting plasma glucose <7 mmol/L on no antidiabetic drug therapy) with a 16.4 ± 7.7 kg weight loss and were followed up with supportive advice on avoidance of weight regain. At 2 years, 20 participants remained in remission in the study. A nondiabetic control (NDC) group, matched for age, sex, and weight after weight loss with the intervention group, was studied once.

RESULTS

During remission, median (interquartile range) maximal rate of insulin secretion increased from 581 (480–811) pmol/min/m2 at baseline to 736 (542–998) pmol/min/m2 at 5 months, 942 (565–1,240) pmol/min/m2 at 12 months (P = 0.028 from baseline), and 936 (635–1,435) pmol/min/m2 at 24 months (P = 0.023 from baseline; n = 20 of 39 of those initially in remission). This was comparable to the NDC group (1,016 [857–1,507] pmol/min/m2) by 12 (P = 0.064) and 24 (P = 0.244) months. Median first-phase insulin response increased from baseline to 5 months (42 [4–67] to 107 [59–163] pmol/min/m2; P < 0.0001) and then remained stable at 12 and 24 months (110 [59–201] and 125 [65–166] pmol/min/m2, respectively; P < 0.0001 vs. baseline) but lower than that of the NDC group (250 [226–429] pmol/min/m2; P < 0.0001).

CONCLUSIONS

A gradual increase in assessed functional β-cell capacity occurred after weight loss, becoming similar to that of NDC group participants by 12 months. This result was unchanged at 2 years with continuing remission of type 2 diabetes.




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The Contemporary Prevalence of Diabetic Neuropathy in Type 1 Diabetes: Findings From the T1D Exchange

OBJECTIVE

To evaluate the contemporary prevalence of diabetic peripheral neuropathy (DPN) in participants with type 1 diabetes in the T1D Exchange Clinic Registry throughout the U.S.

RESEARCH DESIGN AND METHODS

DPN was assessed with the Michigan Neuropathy Screening Instrument Questionnaire (MNSIQ) in adults with ≥5 years of type 1 diabetes duration. A score of ≥4 defined DPN. Associations of demographic, clinical, and laboratory factors with DPN were assessed.

RESULTS

Among 5,936 T1D Exchange participants (mean ± SD age 39 ± 18 years, median type 1 diabetes duration 18 years [interquartile range 11, 31], 55% female, 88% non-Hispanic white, mean glycated hemoglobin [HbA1c] 8.1 ± 1.6% [65.3 ± 17.5 mmol/mol]), DPN prevalence was 11%. Compared with those without DPN, DPN participants were older, had higher HbA1c, had longer duration of diabetes, were more likely to be female, and were less likely to have a college education and private insurance (all P < 0.001). DPN participants also were more likely to have cardiovascular disease (CVD) (P < 0.001), worse CVD risk factors of smoking (P = 0.008), hypertriglyceridemia (P = 0.002), higher BMI (P = 0.009), retinopathy (P = 0.004), reduced estimated glomerular filtration rate (P = 0.02), and Charcot neuroarthropathy (P = 0.002). There were no differences in insulin pump or continuous glucose monitor use, although DPN participants were more likely to have had severe hypoglycemia (P = 0.04) and/or diabetic ketoacidosis (P < 0.001) in the past 3 months.

CONCLUSIONS

The prevalence of DPN in this national cohort with type 1 diabetes is lower than in prior published reports but is reflective of current clinical care practices. These data also highlight that nonglycemic risk factors, such as CVD risk factors, severe hypoglycemia, diabetic ketoacidosis, and lower socioeconomic status, may also play a role in DPN development.




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European Immigrants in the United States

European immigrants in the United States have largely dwindled in number since 1960, after historically making up the bulk of immigration to the country. Today, immigrants from Eastern Europe account for the largest share of European arrivals, and Europeans overall are much older and more educated than the total foreign- and native-born populations. This article explores the data on Europeans in the United States.




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Vietnamese Immigrants in the United States

The Vietnamese immigrant population in the United States has grown significantly since the end of the Vietnam War, making it the sixth-largest foreign-born population in the country. The main modes of arrival for the Vietnamese have shifted over the years, from refugee protection to family reunification. This article explores the characteristics of Vietnamese immigrants, including their incomes, education, English proficiency, and more.




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Mexican Immigrants in the United States

For decades, Mexicans have been the largest immigrant group in the United States. While this is still the case, the Mexican immigrant population is no longer growing at the rate it once was. In fact, between 2010 and 2017, the number of Mexicans in the country first leveled off and then began to decline. This article explores the latest data on Mexican immigrants in the United States.




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South American Immigrants in the United States

South Americans represent a small, but growing share of immigrants in the United States, composing 7 percent of country’s total foreign-born population. Recent growth has been marked by an uptick in arrivals from increasingly failing Venezuela, with an increase of 61,000 Venezuelan immigrants from 2016 to 2017. This article offers an interesting data snapshot of South American immigrants in the United States.




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Immigrants from New Origin Countries in the United States

The national origins of new arrivals to the United States are shifting, in ways not always fully appreciated. Recent newcomers are more likely to come from Asia, Central America, and Africa, and less likely to be from Mexico. This article offers key demographic information about the 15 immigrant groups that have experienced the largest growth since 2010, including Indians, Chinese, Colombians, Nigerians, and Bangladeshis.




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Caribbean Immigrants in the United States

Caribbean immigrants represent 10 percent of the 44.5 million immigrants in the United States, with the vast majority coming from just five countries: Cuba, the Dominican Republic, Jamaica, Haiti, and Trinidad and Tobago. Depending on their origin country and period of arrival, immigrants from the Caribbean have varying skill levels, racial composition, language background, and motivations for migration, as this article explores.




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Korean Immigrants in the United States

Approximately 1 million Korean immigrants—the vast majority from South Korea—resided in the United States in 2017. Korean immigrants tend to be highly educated and of high socioeconomic standing. Get the latest data on this population, including flows over time, geographic distribution, employment, and more in this Spotlight.




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Immigrant Veterans in the United States

Approximately 530,000 foreign-born veterans of the U.S. armed forces resided in the United States in 2018, accounting for 3 percent of the 18.6 million veterans nationwide. Immigrant veterans tend to have higher education levels and household incomes compared to native-born veterans, and the vast majority are naturalized citizens, as this data-rich article explores.




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Refugees and Asylees in the United States

The United States has historically been the top country for refugee resettlement, but was surpassed in 2018 by Canada amid record cuts to admissions by the Trump administration. Approximately 22,500 refugees were resettled in the United States during fiscal year 2018, as well as 26,500 asylees. This article examines where these newcomers came from and many other characteristics, including religious affiliation, age, and gender.




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Naturalization Trends in the United States

Nearly 22 million immigrants—about half of the overall immigrant population—were naturalized U.S. citizens in fiscal year 2017. In the same year, more than 707,000 immigrants became U.S. citizens. Naturalized citizens tend to have higher incomes and educational attainment compared to other immigrants, as this data-rich article explores.




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Central American Immigrants in the United States

While much attention has been paid to recent Central American arrivals at the U.S.-Mexico border, nearly half of the approximately 3.5 million Central Americans resident in the United States in 2017 arrived before 2000. About one-third are naturalized U.S. citizens, and they tend to participate in the labor force at a higher rate than foreign- and U.S.-born adults. Discover more about this population in this data-rich article.




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Inmigrantes centroamericanos en los Estados Unidos

Si bien se ha prestado mucha atención a los centroamericanos recién llegados a la frontera entre los Estados Unidos y México, casi la mitad de los aproximadamente 3.5 millones que vivían en los Estados Unidos en 2017 llegaron antes de 2000. Aproximadamente un tercio son ciudadanos estadounidenses y tienden a participar en la fuerza laboral con más frecuencia que otros extranjeros y estadounidenses. Descubra más en este artículo lleno de datos.




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Brazilian Immigrants in the United States

Approximately 450,000 Brazilian immigrants resided in the United States in 2017, an increase of nearly one-third since 2010. Representing 1 percent of the nation's 44.5 million immigrants, Brazilians tend to have higher educational attainment and household incomes compared to the overall foreign-born population. Get the latest data on Brazilians immigrants, including flows over time, geographic distribution, and more in this Spotlight.