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Bulum T, Tomić M, Vrabec R, Brkljačić N, Ljubić S. Systolic and Diastolic Blood Pressure Are Independent Risk Factors for Diabetic Retinopathy in Patients with Type 2 Diabetes. Biomedicines 2023; 11:2242. [PMID: 37626738 PMCID: PMC10452473 DOI: 10.3390/biomedicines11082242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 08/03/2023] [Accepted: 08/07/2023] [Indexed: 08/27/2023] Open
Abstract
BACKGROUND AND AIMS Diabetic retinopathy (DR) is a microvascular complication of diabetes and represents the leading cause of blindness in working-age adults. The aim of this study was to investigate the risk factors for DR in patients with type 2 diabetes (T2DM) with and without diabetic nephropathy (DN). METHODS A total of 160 patients with T2DM were included in the study. Photodocumented retinopathy status was determined according to the EURODIAB protocol. Renal function was determined using creatinine-based estimated glomerular filtration rate (eGFR) and albumin-to-creatinine ratio (ACR). Binary univariate and multiple logistic regression analyses were performed to determine the main predictors of DR. RESULTS The prevalence of DR in this studied sample was 46.3%. No significant correlation was observed between DR and age, body mass index, serum lipids, and renal function. Binary logistic regression analysis (no DR/DR) showed that longer diabetes duration (p = 0.008), poor glycemic control (HbA1c) (p = 0.008), higher systolic blood pressure (p = 0.001), and diastolic blood pressure (p = 0.003) were the main predictors of DR in patients with T2DM. However, the influence of systolic blood pressure (AOR = 1.06, p = 0.004) and diastolic blood pressure (AOR = 1.12, p = 0.007) on DR development remained significant even after adjustment for diabetes duration and HbA1c. CONCLUSIONS Our results suggest that systolic and diastolic blood pressure are independent risk factors for DR in patients with T2DM.
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Affiliation(s)
- Tomislav Bulum
- Department of Diabetes, Vuk Vrhovac University Clinic for Diabetes, Endocrinology and Metabolic Diseases, Merkur University Hospital, 10000 Zagreb, Croatia
- Medical School, University of Zagreb,10000 Zagreb, Croatia
| | - Martina Tomić
- Department of Ophthalmology, Vuk Vrhovac University Clinic for Diabetes, Endocrinology and Metabolic Diseases, Merkur University Hospital, 10000 Zagreb, Croatia
| | - Romano Vrabec
- Department of Ophthalmology, Vuk Vrhovac University Clinic for Diabetes, Endocrinology and Metabolic Diseases, Merkur University Hospital, 10000 Zagreb, Croatia
| | - Neva Brkljačić
- Department of Cardiology, Vuk Vrhovac University Clinic for Diabetes, Endocrinology and Metabolic Diseases, Merkur University Hospital, 10000 Zagreb, Croatia
| | - Spomenka Ljubić
- Department of Diabetes, Vuk Vrhovac University Clinic for Diabetes, Endocrinology and Metabolic Diseases, Merkur University Hospital, 10000 Zagreb, Croatia
- Medical School, University of Zagreb,10000 Zagreb, Croatia
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Tomić M, Vrabec R, Bulum T, Ljubić S. HDL cholesterol is a protective predictor in the development and progression of retinopathy in type 1 diabetes: A 15-year follow-up study. Diabetes Res Clin Pract 2022; 186:109814. [PMID: 35248652 DOI: 10.1016/j.diabres.2022.109814] [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: 08/14/2021] [Revised: 01/23/2022] [Accepted: 02/28/2022] [Indexed: 11/03/2022]
Abstract
AIMS To evaluate the 15-year incidence of development and progression of diabetic retinopathy (DR) in type 1 diabetic patients (T1DM) and determine the associated risk factors. METHODS 123 T1DM were included in this prospective cohort study and followed for 15 years. Demographic, clinical, laboratory parameters, and retinal photographs were collected and analyzed. Risk factors for DR development and progression were identified using Cox regression analysis. RESULTS At baseline, 87 (71%) patients had no DR, and 36 (29%) had nonproliferative DR (NPDR). After 15 years, 54 patients (43.9%; 29.3/1000 person-years) developed NPDR or progressed to proliferative DR (PDR); 24 (27.6%) developed new NPDR, and 30 (83.3%) progressed to PDR. HbA1c (HR = 1.48, p = 0.008) and urinary albumin excretion rate (AER) (HR = 1.58, p = 0.045) were associated with the risk of DR development and progression, and a protective association was found for HDL cholesterol (HR = 0.17, p = 0.021). The presence of DR at baseline (HR = 2.95, p = 0.023) was associated with the risk of its progression to PDR. CONCLUSIONS The 15-year incidence of DR development and progression in T1DM is still very high, which points to the need for close monitoring of T1DM, especially those with higher HbA1c, higher AER, the initial presence of DR, and lower HDL cholesterol.
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Affiliation(s)
- Martina Tomić
- Department of Ophthalmology, Vuk Vrhovac University Clinic for Diabetes, Endocrinology and Metabolic Diseases, Merkur University Hospital, Dugi dol 4a, Zagreb, Croatia.
| | - Romano Vrabec
- Department of Ophthalmology, Vuk Vrhovac University Clinic for Diabetes, Endocrinology and Metabolic Diseases, Merkur University Hospital, Dugi dol 4a, Zagreb, Croatia
| | - Tomislav Bulum
- Department of Diabetes, Vuk Vrhovac University Clinic for Diabetes, Endocrinology and Metabolic Diseases, Merkur University Hospital, Dugi dol 4a, Zagreb, Croatia; Medical School, University of Zagreb, Šalata 3, Zagreb, Croatia
| | - Spomenka Ljubić
- Department of Diabetes, Vuk Vrhovac University Clinic for Diabetes, Endocrinology and Metabolic Diseases, Merkur University Hospital, Dugi dol 4a, Zagreb, Croatia; Medical School, University of Zagreb, Šalata 3, Zagreb, Croatia
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Bjerg L, Hulman A, Charles M, Jørgensen ME, Witte DR. Clustering of microvascular complications in Type 1 diabetes mellitus. J Diabetes Complications 2018; 32:393-399. [PMID: 29478814 DOI: 10.1016/j.jdiacomp.2018.01.011] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Revised: 11/20/2017] [Accepted: 01/22/2018] [Indexed: 11/30/2022]
Abstract
AIMS To describe to what extent microvascular complications exhibit clustering in persons with Type 1 diabetes, and to assess whether the presence of one complication modified the strength of the association between the other two. METHODS We conducted a cross-sectional analysis of the electronic medical records of 2276 persons with Type 1 diabetes treated in a specialized care hospital in Denmark in 2013. We used log-linear analysis to describe associations between diabetic kidney disease, neuropathy and retinopathy and logistic regression models to quantify the magnitude of associations adjusting for potential confounders. RESULTS The median duration of diabetes was 24 years and median HbA1c was 63 mmol/mol (7.9%). We found strong indication of clustering and found no evidence that presence of one complication modified the association between the other two. In models adjusted for diabetes duration and HbA1c, persons with neuropathy had an OR of 2.15 (95% CI: 1.73-2.66) for concurrent diabetic kidney disease. Those with retinopathy had an OR of 2.49 (1.92-3.24) for diabetic kidney disease and of 2.66 (1.94-3.64) for neuropathy. CONCLUSIONS Microvascular complications in persons with Type 1 diabetes exhibit strong clustering. However, the association between any pair of complications is not modified by the presence of the third.
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Affiliation(s)
- Lasse Bjerg
- Clinical Epidemiology, Steno Diabetes Center Copenhagen, Gentofte, Denmark.; Department of Public Health, Section of General Practice, Aarhus University, Denmark.; Danish Diabetes Academy, Odense, Denmark.
| | - Adam Hulman
- Danish Diabetes Academy, Odense, Denmark; Department of Public Health, Section for Epidemiology, Aarhus University, Denmark
| | - Morten Charles
- Department of Public Health, Section of General Practice, Aarhus University, Denmark
| | - Marit Eika Jørgensen
- Clinical Epidemiology, Steno Diabetes Center Copenhagen, Gentofte, Denmark.; National Institute of Public Health, Southern Denmark University, Denmark
| | - Daniel Rinse Witte
- Danish Diabetes Academy, Odense, Denmark; Department of Public Health, Section for Epidemiology, Aarhus University, Denmark
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Bulum T, Tomić M, Duvnjak L. Total Serum Cholesterol Increases Risk for Development and Progression of Nonproliferative Retinopathy in Patients with Type 1 Diabetes Without Therapeutic Intervention: Prospective, Observational Study. Arch Med Res 2017; 48:467-471. [PMID: 29089151 DOI: 10.1016/j.arcmed.2017.10.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Accepted: 10/17/2017] [Indexed: 01/05/2023]
Abstract
INTRODUCTION Results from studies investigating relationship between serum lipids and risk of development and progression of diabetic retinopathy (DR) in patients with type 1 diabetes (T1DM) are not consistent. The objective of this study was to explore the relationship between serum lipids and risk of development and progression of nonproliferative diabetic retinopathy (NPDR) in T1DM with normal renal function and with no therapeutic intervention that might influence on retinopathy and serum lipids status. METHODS A total of 103 T1DM with normal renal function (urinary albumin excretion rate <30 mg/24 h, estimated glomerular filtration rate (eGFR) >60 mL min‒11.73m‒2), and before any interventions with lipid-lowering therapy, ACE inhibitors or angiotensin II receptor blockers were included in this study and followed for 41 months. Photodocumented retinopathy status was made according to the EURODIAB protocol. RESULTS Patients who developed NPDR or progressed to proliferative retinopathy were older (44 vs. 33 years, p <0.001), had longer duration of diabetes (21.1 vs. 13.3 years, p <0.001), and higher serum total cholesterol level (5.1 vs. 4.5 mM/L, p = 0.02) compared to patients without retinopathy. In a backward stepwise Cox's multiple regression analysis serum total cholesterol was significantly associated with risk of development or progression of NPDR in our subjects (p = 0.04), with odds ratios of 1.27-1.91. CONCLUSION These data suggest that serum total cholesterol levels are associated with risk of development and progression of NPDR in T1DM and normal renal function. The study was conducted in patients with no therapeutic interventions.
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Affiliation(s)
- Tomislav Bulum
- Vuk Vrhovac Clinic for Diabetes, Endocrinology and Metabolic Diseases, University Hospital Merkur, Zagreb, Croatia; Medical School, University of Zagreb, Zagreb, Croatia.
| | - Martina Tomić
- Vuk Vrhovac Clinic for Diabetes, Endocrinology and Metabolic Diseases, University Hospital Merkur, Zagreb, Croatia
| | - Lea Duvnjak
- Vuk Vrhovac Clinic for Diabetes, Endocrinology and Metabolic Diseases, University Hospital Merkur, Zagreb, Croatia; Medical School, University of Zagreb, Zagreb, Croatia
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Reilly NR, Lebwohl B, Mollazadegan K, Michaëlsson K, Green PHR, Ludvigsson JF. Celiac Disease Does Not Influence Fracture Risk in Young Patients with Type 1 Diabetes. J Pediatr 2016; 169:49-54. [PMID: 26589343 PMCID: PMC4729630 DOI: 10.1016/j.jpeds.2015.10.032] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Revised: 09/14/2015] [Accepted: 10/08/2015] [Indexed: 01/03/2023]
Abstract
OBJECTIVES To examine the risk of any fractures in patients with both type 1 diabetes (T1D) and celiac disease (CD) vs patients with T1D only. STUDY DESIGN We performed a population-based cohort study. We defined T1D as individuals aged ≤30 years who had a diagnosis of diabetes recorded in the Swedish National Patient Register between 1964 and 2009. Individuals with CD were identified through biopsy report data between 1969 and 2008 from any of Sweden's 28 pathology departments. Some 958 individuals had both T1D and CD and were matched for sex, age, and calendar period with 4598 reference individuals with T1D only. We then used a stratified Cox regression analysis, where CD was modeled as a time-dependent covariate, to estimate the risk of any fractures and osteoporotic fractures (hip, distal forearm, thoracic and lumbar spine, and proximal humerus) in patients with both T1D and CD compared with that in patients with T1D only. RESULTS During follow-up, 12 patients with T1D and CD had a fracture (1 osteoporotic fracture). CD did not influence the risk of any fracture (adjusted hazard ratio = 0.77; 95% CI = 0.42-1.41) or osteoporotic fractures (adjusted hazard ratio = 0.46; 95% CI = 0.06-3.51) in patients with T1D. Stratification for time since CD diagnosis did not affect risk estimates. CONCLUSION Having a diagnosis of CD does not seem to influence fracture risk in young patients with T1D. Follow-up in this study was, however, too short to ascertain osteoporotic fractures which traditionally occur in old age.
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Affiliation(s)
- Norelle R Reilly
- Division of Pediatric Gastroenterology, Columbia University Medical Center, New York, NY; Celiac Disease Center, Department of Medicine, Columbia University Medical Center, New York, NY
| | - Benjamin Lebwohl
- Celiac Disease Center, Department of Medicine, Columbia University Medical Center, New York, NY; Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Kaziwe Mollazadegan
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Karl Michaëlsson
- Department of Surgical Sciences, Uppsala University, Uppsala, Sweden
| | - Peter H R Green
- Celiac Disease Center, Department of Medicine, Columbia University Medical Center, New York, NY
| | - Jonas F Ludvigsson
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden; Department of Pediatrics, Örebro University Hospital, Örebro University, Örebro, Sweden.
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Cichosz SL, Johansen MD, Knudsen ST, Hansen TK, Hejlesen O. A classification model for predicting eye disease in newly diagnosed people with type 2 diabetes. Diabetes Res Clin Pract 2015; 108:210-5. [PMID: 25765665 DOI: 10.1016/j.diabres.2015.02.020] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2014] [Revised: 01/19/2015] [Accepted: 02/19/2015] [Indexed: 01/19/2023]
Abstract
Diabetic retinopathy may be present at the time type 2 diabetes is diagnosed, and initial screening encompassing an eye examination performed by an ophthalmologist or optometrist is therefore recommended. However, proper screening for retinopathy may be challenging in many parts of the world. We hypothesized that simple, commonly available patient characteristics can be used to identify patients at high risk for having retinopathy. We investigated data from multiple years extracted from the National Health and Nutrition Examination Survey which holds information about blood glucose and eye examinations. Individuals with hitherto undiagnosed diabetes were classified according to the presence or absence of retinopathy. Linear classification was used to predict which patients had retinopathy at the time of diagnosis. A total of 266 individuals with undiagnosed diabetes were identified from the cohorts. Of these, 222 individuals had no sign of retinopathy, whereas 44 had mild or moderate non-proliferative retinopathy. Using information regarding HbA1c, BMI, waist circumference, age, systolic blood pressure, urinary albumin, and urinary creatinine, we were able to construct a model that predicts the presence of retinopathy with a positive predictive value of 22% and a negative predictive value of 99%. Only one true positive (1/44) with mild non-proliferative retinopathy was falsely classified. A classification model using readily available patient information and routine biochemical measures can be used to identify patients at high risk of having retinopathy at the time their diabetes is diagnosed. The model may be used to identify high-risk patients for retinopathy screening.
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Affiliation(s)
- Simon Lebech Cichosz
- Department of Health Science and Technology, Aalborg University, Denmark; Department of Endocrinology, Aarhus University Hospital, Denmark.
| | | | | | | | - Ole Hejlesen
- Department of Health Science and Technology, Aalborg University, Denmark
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