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de Vries SAG, Sas TCJ, Bak JCG, Mul D, Nieuwdorp M, Wouters MWJM, Verheugt CL. Socio-economic disparities in hospital care among Dutch patients with diabetes mellitus. Diabetes Obes Metab 2024; 26:1386-1394. [PMID: 38229451 DOI: 10.1111/dom.15440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 12/05/2023] [Accepted: 12/14/2023] [Indexed: 01/18/2024]
Abstract
AIM Socio-economic status (SES) influences diabetes onset, progression and treatment. In this study, the associations between SES and use of hospital care were assessed, focusing on hospitalizations, technology and cardiovascular complications. MATERIALS AND METHODS This was an observational cohort study comprising 196 695 patients with diabetes (all types and ages) treated in 65 hospitals across the Netherlands from 2019 to 2020 using reimbursement data. Patients were stratified in low, middle, or high SES based on residential areas derived from four-digit zip codes. RESULTS Children and adults with low SES were hospitalized more often than patients with middle or high SES (children: 22%, 19% and 15%, respectively; p < .001, adults: 28%, 25% and 23%; p < .001). Patients with low SES used the least technology: no technology in 48% of children with low SES versus 40% with middle SES and 38% with high SES. In children, continuous subcutaneous insulin infusion (CSII) and real-time continuous glucose monitoring (rtCGM) use was higher in high SES {CSII: odds ratio (OR) 1.54 [95% confidence interval (CI) 1.35-1.76]; p < .001; rtCGM OR 1.39 [95% CI 1.20-1.61]; p < .001} and middle SES [CSII: OR 1.41 (95% CI 1.24-1.62); p < .001; rtCGM: OR 1.27 (95% CI 1.09-1.47); p = .002] compared with low SES. Macrovascular (OR 0.78 (95% CI 0.75-0.80); p < .001) and microvascular complications [OR 0.95 (95% CI 0.93-0.98); p < .001] occurred less in high than in low SES. CONCLUSIONS Socio-economic disparities were observed in patients with diabetes treated in Dutch hospitals, where basic health care is covered. Patients with low SES were hospitalized more often, used less technology, and adults with high SES showed fewer cardiovascular complications. These inequities warrant attention to guarantee equal outcomes for all.
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Affiliation(s)
- Silvia A G de Vries
- Department of Vascular Medicine, Amsterdam University Medical Centers, Amsterdam, The Netherlands
- Scientific bureau, Dutch Institute for Clinical Auditing, Leiden, The Netherlands
| | - Theo C J Sas
- Diabeter, Center for Pediatric and Adult Diabetes Care and Research, Rotterdam, The Netherlands
- Department of Pediatrics, Division of Pediatric Endocrinology, Erasmus University Medical Center, Sophia Children's Hospital, Rotterdam, The Netherlands
| | - Jessica C G Bak
- Department of Vascular Medicine, Amsterdam University Medical Centers, Amsterdam, The Netherlands
- Scientific bureau, Dutch Institute for Clinical Auditing, Leiden, The Netherlands
| | - Dick Mul
- Diabeter, Center for Pediatric and Adult Diabetes Care and Research, Rotterdam, The Netherlands
| | - Max Nieuwdorp
- Department of Vascular Medicine, Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Michel W J M Wouters
- Scientific bureau, Dutch Institute for Clinical Auditing, Leiden, The Netherlands
- Department of Biomedical Data Sciences, Leiden University Medical Center, Leiden, The Netherlands
| | - Carianne L Verheugt
- Department of Vascular Medicine, Amsterdam University Medical Centers, Amsterdam, The Netherlands
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Sebastian-Valles F, Martínez-Alfonso J, Arranz Martin JA, Jiménez-Díaz J, Hernando Alday I, Navas-Moreno V, Joya TA, Fandiño García MDM, Román Gómez GL, Garai Hierro J, Lander Lobariñas LE, Martínez de Icaya P, Sampedro-Nuñez MA, Martínez-Vizcaíno V, Marazuela M. Impact of socioeconomic status on chronic control and complications of type 1 diabetes mellitus in users of glucose flash systems: a follow-up study. BMC Med 2024; 22:37. [PMID: 38273326 PMCID: PMC10809494 DOI: 10.1186/s12916-024-03254-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 01/10/2024] [Indexed: 01/27/2024] Open
Abstract
BACKGROUND This study investigates the association between socioeconomic status (SES) and glycemic control in individuals with type 1 diabetes (T1D) using flash glucose monitoring (FGM) devices within a public health system where these technologies are freely available and utilized according to recommended guidelines. METHODS A follow-up study of 1060 adults (mean age 47.4 ± 15.0 years, 49.0% women) with T1D, receiving care at three Spanish university hospitals that regularly employ the FGM system. SES was assessed using the Spanish Deprivation Index and the average annual net income per person. Glycemic data were collected over a 14-day follow-up period, including baseline glycated hemoglobin (HbA1c) levels prior to sensor placement, the last available HbA1c levels, and FGM-derived glucose metrics. Individuals with sensor usage time < 70% were excluded. Chronic micro and macrovascular complications related to diabetes were documented. Regression models, adjusted for clinical variables, were employed to determine the impact of SES on optimal sensor control (defined as time in range (TIR) ≥ 70% with time below range < 4%) and disease complications. RESULTS The average follow-up was of 2 years. The mean TIR and the percentage of individuals with optimal control were higher in individuals in the highest SES quartile (64.9% ± 17.8% and 27.9%, respectively) compared to those in the lowest SES quartile (57.8 ± 17.4% and 12.1%) (p < 0.001). Regression models showed a higher risk of suboptimal control (OR 2.27, p < 0.001) and ischemic heart disease and/or stroke (OR 3.59, p = 0.005) in the lowest SES quartile. No association was observed between SES and the risk of diabetic nephropathy and retinopathy. FGM system improved HbA1c levels across all SES quartiles. Although individuals in the highest SES quartile still achieved a significantly lower value at the end of the follow-up 55 mmol/mol (7.2%) compared to those in the lowest SES quartile 60 mmol/mol (7.6%) (p < 0.001), the significant disparities in this parameter between the various SES groups were significantly reduced after FGM technology use. CONCLUSIONS Socioeconomic status plays a significant role in glycemic control and complications in individuals with T1D, extending beyond access to technology and its proper utilization. The free utilization of FGM technology helps alleviate the impact of social inequalities on glycemic control.
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Affiliation(s)
- Fernando Sebastian-Valles
- Department of Endocrinology and Nutrition, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria de La Princesa, Universidad Autónoma de Madrid, 28006, Madrid, Spain.
| | - Julia Martínez-Alfonso
- Department of Family and Community Medicine, Centro de Salud Daroca, 28006, Madrid, Spain
| | - Jose Alfonso Arranz Martin
- Department of Endocrinology and Nutrition, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria de La Princesa, Universidad Autónoma de Madrid, 28006, Madrid, Spain
| | - Jessica Jiménez-Díaz
- Department of Endocrinology and Nutrition, Hospital Universitario Severo Ochoa, Leganés, 28194, Madrid, Spain
| | - Iñigo Hernando Alday
- Department of Endocrinology and Nutrition, Hospital Universitario Basurto, 48013, Bilbao, Spain
| | - Victor Navas-Moreno
- Department of Endocrinology and Nutrition, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria de La Princesa, Universidad Autónoma de Madrid, 28006, Madrid, Spain
| | - Teresa Armenta Joya
- Department of Endocrinology and Nutrition, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria de La Princesa, Universidad Autónoma de Madrid, 28006, Madrid, Spain
| | | | - Gisela Liz Román Gómez
- Department of Endocrinology and Nutrition, Hospital Universitario Severo Ochoa, Leganés, 28194, Madrid, Spain
| | - Jon Garai Hierro
- Department of Endocrinology and Nutrition, Hospital Universitario Basurto, 48013, Bilbao, Spain
| | | | | | - Miguel Antonio Sampedro-Nuñez
- Department of Endocrinology and Nutrition, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria de La Princesa, Universidad Autónoma de Madrid, 28006, Madrid, Spain
| | - Vicente Martínez-Vizcaíno
- Health and Social Care Research Center, Universidad de Castilla-La Mancha, 16071, Cuenca, Spain
- Facultad de Ciencias de La Salud, Universidad Autónoma de Chile, Talca, Chile
| | - Mónica Marazuela
- Department of Endocrinology and Nutrition, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria de La Princesa, Universidad Autónoma de Madrid, 28006, Madrid, Spain
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