Standards of Medical Care in Diabetes—2019 Abridged for Primary Care Providers American Diabetes Association
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POSITION STATEMENT Standards of Medical Care in Diabetes—2019 Abridged for Primary Care Providers American Diabetes Association he American Diabetes Associa- 1. IMPROVING CARE AND tion’s (ADA’s) Standards of Med- PROMOTING HEALTH IN Tical Care in Diabetes is updated POPULATIONS and published annually in a supple- Diabetes and Population Health ment to the January issue of Diabetes Care. The ADA’s Professional Practice Recommendations Committee, which includes physi- • Ensure treatment decisions are cians, diabetes educators, registered timely, rely on evidence-based dietitians (RDs), and public health guidelines, and are made collab- experts, develops the Standards. The oratively with patients based on Standards include the most current individual preferences, prognoses, evidence-based recommendations for and comorbidities. B diagnosing and treating adults and • Align approaches to diabetes children with all forms of diabetes. management with the Chronic ADA’s grading system uses A, B, C, Care Model, emphasizing pro- or E to show the evidence level that ductive interactions between a supports each recommendation. prepared proactive care team and A • A—Clear evidence from well- an informed activated patient. • Care systems should facilitate conducted, generalizable ran- team-based care, patient regis- domized controlled trials that are tries, decision support tools, and adequately powered community involvement to meet • B—Supportive evidence from patient needs. B well-conducted cohort studies • C—Supportive evidence from Population health is defined as poorly controlled or uncontrolled “the health outcomes of a group of studies individuals, including the distribution • E—Expert consensus or clinical of health outcomes within the group”; experience these outcomes can be measured in This is an abridged version of the American terms of health outcomes (mortality, Diabetes Association’s Standards of Medical This is an abridged version of morbidity, health, and functional sta- Care in Diabetes—2019. Diabetes Care the 2019 Standards containing the 2018;42(Suppl. 1):S1–S194. tus), disease burden (incidence and evidence-based recommendations The complete 2019 Standards supplement, prevalence), and behavioral and meta- including all supporting references, is most pertinent to primary care. The bolic factors (exercise, diet, A1C, etc.). available at professional.diabetes.org/ tables and figures have been renum- Clinical practice recommendations standards. bered from the original document for health care providers are tools that https://doi.org/10.2337/cd18-0105 to match this version. The complete can ultimately improve health across ©2018 by the American Diabetes Association. 2019 Standards of Care document, populations; however, for optimal Readers may use this article as long as the work is including all supporting references, outcomes, diabetes care must also be properly cited, the use is educational and not for profit, and the work is not altered. See www. is available at professional.diabetes. individualized for each patient. Thus, diabetesjournals.org/content/license for details. org/standards. efforts to improve population health CLINICAL DIABETES 1 Clinical Diabetes Online Ahead of Print, published online December 17, 2018 POSITION STATEMENT will require a combination of system- Tailoring Treatment for Social 2. CLASSIFICATION AND level and patient-level approaches. Context DIAGNOSIS OF DIABETES Diabetes can be classified into the The proportion of patients with Recommendations diabetes who achieve recommended following general categories: • Providers should assess social A1C, blood pressure, and LDL cho- 1. Type 1 diabetes (due to auto- context, including potential food lesterol levels has increased in recent immune β-cell destruction, insecurity, housing stability, and years. Nevertheless, a 2013 report usually leading to absolute insulin financial barriers, and apply that found that 33–49% of patients still deficiency) information to treatment deci- did not meet general targets for gly- 2. Type 2 diabetes (due to a progres- sions. A cemic, blood pressure, or cholesterol sive loss of β-cell insulin secretion control, and only 14% met targets for • Refer patients to local community frequently on the background of B all three measures while also avoiding resources when available. insulin resistance) smoking. • Provide patients with self- 3. Gestational diabetes mellitus Diabetes poses a significant management support from lay (GDM) (diabetes diagnosed in the financial burden to individuals and health coaches, navigators, or second or third trimester of preg- society. After adjusting for inflation, community health workers when nancy that was not clearly overt A economic costs of diabetes increased available. diabetes prior to gestation) 4. Specific types of diabetes due to by 26% from 2012 to 2017. This is Health inequities related to other causes, e.g., monogenic dia- attributed to the increased prevalence diabetes and its complications are betes syndromes (such as neonatal of diabetes and the increased cost per well documented and are heavily diabetes and maturity-onset diabe- person with diabetes. influenced by social determinants tes of the young), diseases of the The Chronic Care Model (CCM) of health. Social determinants of exocrine pancreas (such as cystic is an effective framework for improv- health are defined as the economic, ing the quality of diabetes care and fibrosis and pancreatitis), and drug- environmental, political, and social or chemical-induced diabetes (such includes six core elements: conditions in which people live and 1. as with glucocorticoid use, in the Delivery system design (moving are responsible for a major part of from a reactive to a proactive care treatment of HIV/AIDS, or after health inequality worldwide. delivery system where planned organ transplantation) Food insecurity (FI) is the unre- visits are coordinated through a liable availability of nutritious food Diagnostic Tests for Diabetes team-based approach) and the inability to consistently 2. Self-management support Recommendations obtain food without resorting to 3. Decision support (basing care • Testing for prediabetes and type socially unacceptable practices. FI on evidence-based, effective care 2 diabetes in asymptomatic peo- affects more than 14% of the U.S. guidelines) ple should be considered in adults population, with higher rates in 4. Clinical information systems of any age who are overweight or some racial/ethnic minority groups, 2 (using registries that can provide obese (BMI ≥25 kg/m or ≥23 patient-specific and population- in low-income households, and in kg/m2 in Asian Americans) and based support to the care team) homes headed by a single mother. who have one or more additional FI is associated with increased 5. Community resources and pol- risk factors for diabetes (Table 1). B icies (identifying or developing risk for type 2 diabetes, subopti- • For all people, testing should begin resources to support healthy mal glycemic control, psychosocial at age 45 years. B lifestyles) conditions, and low treatment • If tests are normal, repeat testing 6. Health systems (to create a quality- adherence. carried out at a minimum of 3-year oriented culture) Community health workers intervals is reasonable. C (CHWs), peer supporters, and lay • In patients with prediabetes and Redefining the roles of the health leaders may assist in the delivery of type 2 diabetes, identify and, if care delivery team and empow- diabetes self-management education appropriate, treat other cardiovas- ering patient self-management and support (DSMES) services, cular disease risk factors. B are fundamental to the success- particularly in underserved com- • Risk-based screening for prediabe- ful implementation of the CCM. munities. CHWs can be part of a tes and/or type 2 diabetes should Collaborative, multidisciplinary cost-effective, evidence-based strat- be considered after the onset of teams are best suited to provide care egy to improve the management of puberty or after 10 years of age, for people with chronic conditions diabetes and cardiovascular risk whichever occurs earlier, in chil- such as diabetes and to facilitate factors in underserved communi- dren and adolescents who are patients’ self-management. ties and health care systems. overweight (BMI ≥85th percentile) 2 CLINICAL.DIABETESJOURNALS.ORG Clinical Diabetes Online Ahead of Print, published online December 17, 2018 ABRIDGED STANDARDS OF CARE 2019 TABLE 1. Criteria for Testing for Diabetes or Prediabetes in Asymptomatic Adults 1. Testing should be considered in overweight or obese (BMI ≥25 kg/m2 or ≥23 kg/m2 in Asian Americans) adults who have one or more of the following risk factors: • First-degree relative with diabetes • High-risk race/ethnicity (e.g., African American, Latino, Native American, Asian American, Pacific Islander) • History of CVD • Hypertension (≥140/90 mmHg or on therapy for hypertension) • HDL cholesterol level <35 mg/dL (0.90 mmol/L) and/or a triglyceride level >250 mg/dL (2.82 mmol/L) • Women with polycystic ovary syndrome • Physical inactivity • Other clinical conditions associated with insulin resistance (e.g., severe obesity, acanthosis nigricans) 2. Patients with prediabetes (A1C ≥5.7% [39 mmol/mol], IGT, or IFG) should be tested yearly. 3. Women who were diagnosed with GDM should have lifelong testing at least every 3 years. 4. For all other patients, testing should begin at age 45 years. 5. If results are normal, testing should be repeated at a minimum of 3-year intervals,