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Hou X, Wang L, Zhu D, Guo L, Weng J, Zhang M, Zhou Z, Zou D, Ji Q, Guo X, Wu Q, Chen S, Yu R, Chen H, Huang Z, Zhang X, Wu J, Wu J, Jia W. Prevalence of diabetic retinopathy and vision-threatening diabetic retinopathy in adults with diabetes in China. Nat Commun 2023; 14:4296. [PMID: 37463878 DOI: 10.1038/s41467-023-39864-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 06/28/2023] [Indexed: 07/20/2023] Open
Abstract
The current epidemic status of diabetic retinopathy in China is unclear. A national prevalence survey of diabetic complications was conducted. 50,564 participants with gradable non-mydriatic fundus photographs were enrolled. The prevalence rates (95% confidence intervals) of diabetic retinopathy and vision-threatening diabetic retinopathy were 16.3% (15.3%-17.2%) and 3.2% (2.9%-3.5%), significantly higher in the northern than in the southern regions. The differences in prevalence between those who had not attained a given metabolic goal and those who had were more pronounced for Hemoglobin A1c than for blood pressure and low-density lipoprotein cholesterol. The participants with vision-threatening diabetic retinopathy had significantly higher proportions of visual impairment and blindness than those with non-vision-threatening diabetic retinopathy. The likelihoods of diabetic retinopathy and vision-threatening diabetic retinopathy were also associated with education levels, household income, and multiple dietary intakes. Here, we show multi-level factors associated with the presence and the severity of diabetic retinopathy.
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Affiliation(s)
- Xuhong Hou
- Department of Endocrinology and Metabolism, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Clinical Center for Diabetes, Shanghai Key Clinical Center for Metabolic Disease, Shanghai, China
| | - Limin Wang
- National Center for Chronic and Noncommunicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Dalong Zhu
- Department of Endocrinology, Drum Tower Hospital Affiliated to Nanjing University Medical School, Nanjing, Jiangsu Province, China
| | - Lixin Guo
- Department of Endocrinology, Beijing Hospital, Beijing, China
| | - Jianping Weng
- Department of Endocrinology, the First Affiliated Hospital, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui Province, China
| | - Mei Zhang
- National Center for Chronic and Noncommunicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Zhiguang Zhou
- Institute of Metabolism and Endocrinology, Key Laboratory of Diabetes Immunology, Ministry of Education, National Clinical Research Center for Metabolic Diseases, the Second Xiangya Hospital and the Diabetes Center, Central South University, Changsha, Hunan Province, China
| | - Dajin Zou
- Department of Endocrinology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Qiuhe Ji
- Department of Endocrinology, Xijing Hospital, Xi'an, Shaanxi Province, China
| | - Xiaohui Guo
- Department of Endocrinology, Peking University First Hospital, Beijing, China
| | - Qiang Wu
- Department of Ophthalmology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Siyu Chen
- Department of Endocrinology and Metabolism, Suzhou Dushu Lake Hospital (Dushu Lake Hospital Affiliated to Soochow University), Suzhou, Jiangsu Province, China
| | - Rong Yu
- Department of Endocrinology and Metabolism, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Clinical Center for Diabetes, Shanghai Key Clinical Center for Metabolic Disease, Shanghai, China
| | - Hongli Chen
- Department of Endocrinology and Metabolism, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Clinical Center for Diabetes, Shanghai Key Clinical Center for Metabolic Disease, Shanghai, China
| | - Zhengjing Huang
- National Center for Chronic and Noncommunicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Xiao Zhang
- National Center for Chronic and Noncommunicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Jiarui Wu
- Key Laboratory of Systems Health Science of Zhejiang Province, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, Zhejiang Province, China
- Center for Excellence in Molecular Science, Chinese Academy of Sciences, Shanghai, China
| | - Jing Wu
- National Center for Chronic and Noncommunicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China.
| | - Weiping Jia
- Department of Endocrinology and Metabolism, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Clinical Center for Diabetes, Shanghai Key Clinical Center for Metabolic Disease, Shanghai, China.
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Andrés-Blasco I, Gallego-Martínez A, Machado X, Cruz-Espinosa J, Di Lauro S, Casaroli-Marano R, Alegre-Ituarte V, Arévalo JF, Pinazo-Durán MD. Oxidative Stress, Inflammatory, Angiogenic, and Apoptotic molecules in Proliferative Diabetic Retinopathy and Diabetic Macular Edema Patients. Int J Mol Sci 2023; 24:ijms24098227. [PMID: 37175931 PMCID: PMC10179600 DOI: 10.3390/ijms24098227] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 03/30/2023] [Accepted: 04/25/2023] [Indexed: 05/15/2023] Open
Abstract
The aim of this study is to evaluate molecules involved in oxidative stress (OS), inflammation, angiogenesis, and apoptosis, and discern which of these are more likely to be implicated in proliferative diabetic retinopathy (PDR) and diabetic macular edema (DME) by investigating the correlation between them in the plasma (PLS) and vitreous body (VIT), as well as examining data obtained from ophthalmological examinations. Type 2 diabetic (T2DM) patients with PDR/DME (PDRG/DMEG; n = 112) and non-DM subjects as the surrogate controls (SCG n = 48) were selected according to the inclusion/exclusion criteria and programming for vitrectomy, either due to having PDR/DME or macular hole (MH)/epiretinal membrane (ERM)/rhegmatogenous retinal detachment. Blood samples were collected and processed to determine the glycemic profile, total cholesterol, and C reactive protein, as well as the malondialdehyde (MDA), 4-hydroxynonenal (4HNE), superoxide dismutase (SOD), and catalase (CAT) levels and total antioxidant capacity (TAC). In addition, interleukin 6 (IL6), vascular endothelial growth factor (VEGF), and caspase 3 (CAS3) were assayed. The VITs were collected and processed to measure the expression levels of all the abovementioned molecules. Statistical analyses were conducted using the R Core Team (2022) program, including group comparisons and correlation analyses. Compared with the SCG, our findings support the presence of molecules involved in OS, inflammation, angiogenesis, and apoptosis in the PLS and VIT samples from T2DM. In PLS from PDRG, there was a decrease in the antioxidant load (p < 0.001) and an increase in pro-angiogenic molecules (p < 0.001), but an increase in pro-oxidants (p < 0.001) and a decline in antioxidants (p < 0.001) intravitreally. In PLS from DMEG, pro-oxidants and pro-inflammatory molecules were augmented (p < 0.001) and the antioxidant capacity diminished (p < 0.001), but the pro-oxidants increased (p < 0.001) and antioxidants decreased (p < 0.001) intravitreally. Furthermore, we found a positive correlation between the PLS-CAT and the VIT-SOD levels (rho = 0.5; p < 0.01) in PDRG, and a negative correlation between the PSD-4HNE and the VIT-TAC levels (rho = 0.5; p < 0.01) in DMEG. Integrative data of retinal imaging variables showed a positive correlation between the central subfield foveal thickness (CSFT) and the VIT-SOD levels (rho = 0.5; p < 0.01), and a negative correlation between the CSFT and the VIT-4HNE levels (rho = 0.4; p < 0.01) in PDRG. In DMEG, the CSFT displayed a negative correlation with the VIT-CAT (rho = 0.5; p < 0.01). Exploring the relationship of the abovementioned potential biomarkers between PLS and VIT may help detecting early molecular changes in PDR/DME, which can be used to identify patients at high risk of progression, as well as to monitor therapeutic outcomes in the diabetic retina.
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Affiliation(s)
- Irene Andrés-Blasco
- Cellular and Molecular Ophthalmo-Biology Group, Department of Surgery, Faculty of Medicine and Odontology, University of Valencia, 46010 Valencia, Spain
- Ophthalmic Research Unit "Santiago Grisolía"/FISABIO, 46017 Valencia, Spain
- Spanish Net of Inflammatory Diseases and Immunopathology of Organs and Systems (REI/RICORS), Institute of Health Carlos III, Ministry of Science and Innovation, 28029 Madrid, Spain
| | - Alex Gallego-Martínez
- Cellular and Molecular Ophthalmo-Biology Group, Department of Surgery, Faculty of Medicine and Odontology, University of Valencia, 46010 Valencia, Spain
- Ophthalmic Research Unit "Santiago Grisolía"/FISABIO, 46017 Valencia, Spain
| | - Ximena Machado
- Cellular and Molecular Ophthalmo-Biology Group, Department of Surgery, Faculty of Medicine and Odontology, University of Valencia, 46010 Valencia, Spain
- Ophthalmic Research Unit "Santiago Grisolía"/FISABIO, 46017 Valencia, Spain
| | | | - Salvatore Di Lauro
- Department of Ophthalmology, University Clinic Hospital, 47003 Valladolid, Spain
| | - Ricardo Casaroli-Marano
- Spanish Net of Inflammatory Diseases and Immunopathology of Organs and Systems (REI/RICORS), Institute of Health Carlos III, Ministry of Science and Innovation, 28029 Madrid, Spain
- Spanish Net of Ophthalmic Pathology Research OFTARED, Institute of Health Carlos III, Ministry of Science and Innovation, 28029 Madrid, Spain
- Department of Ophthalmology, Clinic Hospital, 08036 Barcelona, Spain
| | - Víctor Alegre-Ituarte
- Cellular and Molecular Ophthalmo-Biology Group, Department of Surgery, Faculty of Medicine and Odontology, University of Valencia, 46010 Valencia, Spain
- Ophthalmic Research Unit "Santiago Grisolía"/FISABIO, 46017 Valencia, Spain
- Department of Ophthalmology, University Hospital Dr. Peset, 46017 Valencia, Spain
| | - José Fernando Arévalo
- Spanish Net of Inflammatory Diseases and Immunopathology of Organs and Systems (REI/RICORS), Institute of Health Carlos III, Ministry of Science and Innovation, 28029 Madrid, Spain
- Wilmer at Johns Hopkins Bayview Medical Center, Baltimore, MA 21224, USA
| | - María Dolores Pinazo-Durán
- Cellular and Molecular Ophthalmo-Biology Group, Department of Surgery, Faculty of Medicine and Odontology, University of Valencia, 46010 Valencia, Spain
- Ophthalmic Research Unit "Santiago Grisolía"/FISABIO, 46017 Valencia, Spain
- Spanish Net of Inflammatory Diseases and Immunopathology of Organs and Systems (REI/RICORS), Institute of Health Carlos III, Ministry of Science and Innovation, 28029 Madrid, Spain
- Spanish Net of Ophthalmic Pathology Research OFTARED, Institute of Health Carlos III, Ministry of Science and Innovation, 28029 Madrid, Spain
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Drinkwater JJ, Davis TME, Turner AW, Davis WA. Retinopathy prevalence, incidence and trajectories in type 2 diabetes: The Fremantle diabetes study phase II. Diabet Med 2023; 40:e15032. [PMID: 36537852 PMCID: PMC10947291 DOI: 10.1111/dme.15032] [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: 08/18/2022] [Revised: 11/15/2022] [Accepted: 12/15/2022] [Indexed: 12/24/2022]
Abstract
AIMS To determine diabetic retinopathy (DR) prevalence, incidence, and whether distinct trajectories are associated with DR-complicating Type 2 diabetes. METHODS Retinal photographs from Fremantle Diabetes Study Phase II (FDS2) participants with Type 2 diabetes recruited in 2008-2011 and who attended biennial assessments for up to 6 years were graded as no DR, mild non-proliferative DR (NPDR), moderate NPDR or severe NPDR/proliferative DR. Baseline DR prevalence, and the cumulative incidence of moderate NPDR or worse in those without DR at baseline, were calculated. Group-based DR trajectory modelling was performed. Logistic regression determined independent associates of incident moderate NPDR or worse and trajectory group membership. RESULTS Of 1521 participants (mean age 65.6 years, 52.1% males, median diabetes duration 9.0 years; 98% of all FDS2 participants with Type 2 diabetes) with gradable baseline photographs, 563 (37.0%) had DR. During a median 6.1 years of follow-up, 23 (3.2%) without baseline DR developed at least moderate NPDR (crude incidence 6.1/1000 person-years) with HbA1c the sole independent predictor (odds ratio [95% CI]: 1.62 [1.30-2.02] per 1% [11 mmol/mol] increase). Trajectory analysis showed two distinct groups, those with baseline/persistent DR (20%) and those remaining DR free (80%). Longer diabetes duration, insulin use, higher mean HbA1c , higher mean systolic blood pressure and higher mean urinary albumin: creatinine ratio all increased the odds (p ≤ 0.014) of being in the persistent DR trajectory group. CONCLUSIONS The low incidence of at least moderate NPDR reflects the trajectory analysis. The currently recommended biennial retinal screening frequency for individuals without DR could potentially be extended.
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Affiliation(s)
- Jocelyn J. Drinkwater
- Medical SchoolThe University of Western Australia, Fremantle HospitalFremantleWestern AustraliaAustralia
| | - Timothy M. E. Davis
- Medical SchoolThe University of Western Australia, Fremantle HospitalFremantleWestern AustraliaAustralia
| | - Angus W. Turner
- Centre for Ophthalmology and Visual Science (Incorporating Lions Eye Institute)The University of Western AustraliaNedlandsWestern AustraliaAustralia
| | - Wendy A. Davis
- Medical SchoolThe University of Western Australia, Fremantle HospitalFremantleWestern AustraliaAustralia
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Jotte A, Vander Kooi W, French DD. Factors Associated with Annual Vision Screening in Diabetic Adults: Analysis of the 2019 National Health Interview Survey. Clin Ophthalmol 2023; 17:613-621. [PMID: 36843957 PMCID: PMC9946010 DOI: 10.2147/opth.s402082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 02/09/2023] [Indexed: 02/20/2023] Open
Abstract
Purpose To determine the association(s) between receiving an annual eye exam and various economic, social, and geographic factors assessed in the 2019 National Health Interview Survey (NHIS) among adults with diabetes. Patients and Methods Data from adults 18 years of age and older relevant to self-reported non-gestational diabetes diagnosis and eye exam within the last 12 months were extracted from the 2019 NHIS dataset. A multivariate logistic regression model was used to determine associations between receiving an eye exam in the preceding 12 months and various economic, insurance-related, geographic, and social factors. Outcomes were reported as odds ratios (OR) with 95% confidence intervals (CI). Results Among diabetic adults in the US, receiving an eye exam within the last 12 months was significantly associated with female sex (OR 1.29; 95% CI 1.05-1.58), residence in the Midwestern United States (OR 1.39; 95% CI 1.01-1.92), use of Veteran's Health Administration healthcare (OR 2.15; 95% CI 1.34-3.44), having a usual place to go for healthcare (OR 3.89; 95% CI 2.16-7.01), and the use of Private, Medicare Advantage, or other insurance (OR 3.66; 95% CI 2.42-5.53), use of Medicare only excluding Medicare Advantage (OR 3.18; 95% CI 1.95-5.30), dual eligibility for Medicare and Medicaid (OR 3.88; 95% CI 2.21-6.79), and use of Medicaid and other public health insurance (OR 3.04; 95% CI 1.89-4.88) compared to those without insurance. An educational attainment of less than high school (OR 0.66; 95% CI 0.48-0.92), and an educational attainment of high school or GED without any college (OR 0.62; 95% CI 0.47-0.81) reduced the odds of having an annual eye exam. Conclusion Economic, social, and geographic factors are associated with diabetic adults receiving an annual eye exam.
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Affiliation(s)
- Alec Jotte
- Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | | | - Dustin D French
- Feinberg School of Medicine, Northwestern University, Chicago, IL, USA,Departments of Ophthalmology and Medical Social Sciences, Northwestern University, Chicago, IL, USA,Center for Health Services and Outcomes Research, Northwestern University, Chicago, IL, USA,Veterans Affairs Health Services Research and Development Service, Chicago, IL, USA,Correspondence: Dustin D French, 645 N. Michigan Ave., Suite 440, Chicago, IL, 60611, USA, Tel +1 312 503 5590, Fax +1 312 503 8152, Email
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Cai K, Liu YP, Wang D. Prevalence of diabetic retinopathy in patients with newly diagnosed type 2 diabetes: A systematic review and meta-analysis. Diabetes Metab Res Rev 2023; 39:e3586. [PMID: 36286346 DOI: 10.1002/dmrr.3586] [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: 03/13/2022] [Revised: 07/04/2022] [Accepted: 07/30/2022] [Indexed: 01/10/2023]
Abstract
AIMS Type 2 diabetes mellitus (T2DM) can remain undiagnosed for many years, during which micro- and macro-vascular complications may develop. This study aimed to assess the worldwide prevalence of diabetic retinopathy (DR) in patients with newly diagnosed T2DM. MATERIALS AND METHODS We systematically searched electronic databases for relevant studies published from inception to 01 January 2022. Selected studies reported the prevalence of DR among patients with newly diagnosed T2DM, specifying the case definition used. Random-effects meta-analysis was used to derive the pooled prevalence. Subgroup and meta-regression analyses were used to investigate variations in the prevalence estimates in terms of available variables. RESULTS Data from 77 studies including 99,847 patients with newly diagnosed T2DM were included from 26 countries. The pooled prevalence of DR among patients with newly diagnosed T2DM was 13.1% (95% CI, 11.1%-15.1%; I2 = 97.0%). DR was higher in clinic-based samples compared with community-based samples (15.0%, 95% CI = 12.4%-17.8% vs. 11.5%, 95% CI = 8.9%-14.5%; p = 0.05; I2 = 97.0%) and was higher in countries in the WHO African 19.2% (95% CI, 14.6%-24.3%; I2 = 76.0%), South-East Asia 15.4% (95% CI, 10.0%-21.6%; I2 = 79.1%), and European 15.0% (95% CI, 11.2%-19.2%; I2 = 82.0%) regions. A higher proportion of female patients was significantly associated with a lower prevalence of DR in patients with newly diagnosed T2DM. We observed that the prevalence of DR in patients with newly diagnosed T2DM has remained unchanged over time. CONCLUSIONS Globally, DR is a prevalent complication among patients with newly diagnosed T2DM indicating the importance of establishing effective strategies to promote regular screening for the early diagnosis of T2DM alongside routine ophthalmic assessment at the time of T2DM diagnosis to reduce the burden of vision-threatening retinopathy.
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Affiliation(s)
- Ke Cai
- School of Physical Education and Sport Sciences, Fujian Normal University, Provincial University Key Laboratory of Sport and Health Science, Fuzhou, China
| | - Yi-Ping Liu
- School of Physical Education and Sport Sciences, Fujian Normal University, Provincial University Key Laboratory of Sport and Health Science, Fuzhou, China
| | - Dan Wang
- School of Physical Education and Sport Sciences, Fujian Normal University, Provincial University Key Laboratory of Sport and Health Science, Fuzhou, China
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Ma Y, Lin C, Cai X, Hu S, Zhu X, Lv F, Yang W, Ji L. The association between the use of sodium glucose cotransporter 2 inhibitor and the risk of diabetic retinopathy and other eye disorders: a systematic review and meta-analysis. Expert Rev Clin Pharmacol 2022; 15:877-886. [PMID: 35839519 DOI: 10.1080/17512433.2022.2102973] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
OBJECTIVE To assess the association between the use of sodium-glucose cotransporter 2 inhibitor (SGLT2i) and the incidence of diabetic retinopathy (DR). RESEARCH DESIGN AND METHODS Pubmed, Medline, Embase, the Cochrane Central Register of Controlled Trials and Clinicaltrial.gov were searched from inception to October 2021. Randomized controlled trials (RCTs) with reports of incidence of DR and other eye disorders between SGLT2i users and non-SGLT2i users with type 2 diabetes mellitus were included. RESULTS In general, the incidences of DR were comparable between SGLT2i users and non-SGLT2i users (OR=0.80, 95%CI 0.61 to 1.06, P=0.12). However, compared with non-SGLT2i users, the incidence of DR was significantly reduced in SGLT2i users with diabetes duration less than 10 years (OR=0.32, 95%CI 0.13 to 0.76, P=0.01). Weight reduction in SGLT2i users was associated with the decreased risk of retinal detachment. Moreover, longer study duration was associated with lower incidence of cataract and retinal vasculopathy in SGLT2i users. CONCLUSIONS In general, the use of SGLT2i was not associated with the incidence of DR. However, a reduced risk of DR was observed in SGLT2i users with diabetes duration less than 10 years. An early initiation of SGLT2i might be more likely to provide with ocular benefits.
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Affiliation(s)
- Yunke Ma
- Department of Endocrinology and Metabolism, Peking University People's Hospital, Beijing, China
| | - Chu Lin
- Department of Endocrinology and Metabolism, Peking University People's Hospital, Beijing, China
| | - Xiaoling Cai
- Department of Endocrinology and Metabolism, Peking University People's Hospital, Beijing, China
| | - Suiyuan Hu
- Department of Endocrinology and Metabolism, Peking University People's Hospital, Beijing, China
| | - Xingyun Zhu
- Department of Endocrinology and Metabolism, Peking University People's Hospital, Beijing, China
| | - Fang Lv
- Department of Endocrinology and Metabolism, Peking University People's Hospital, Beijing, China
| | - Wenjia Yang
- Department of Endocrinology and Metabolism, Peking University People's Hospital, Beijing, China
| | - Linong Ji
- Department of Endocrinology and Metabolism, Peking University People's Hospital, Beijing, China
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Chung YC, Xu T, Tung TH, Chen M, Chen PE. Early Screening for Diabetic Retinopathy in Newly Diagnosed Type 2 Diabetes and Its Effectiveness in Terms of Morbidity and Clinical Treatment: A Nationwide Population-Based Cohort. Front Public Health 2022; 10:771862. [PMID: 35570930 PMCID: PMC9094682 DOI: 10.3389/fpubh.2022.771862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 03/21/2022] [Indexed: 11/17/2022] Open
Abstract
Purpose To characterize the association between the frequency of screening for diabetic retinopathy (DR) and the detection of DR in patients with newly diagnosed type 2 diabetes mellitus (T2DM). Methods This nationwide population-based cohort study used data from the National Health Insurance Research Database to identify adult patients who were newly diagnosed with T2DM between 2000 and 2004. Data from their follow-up Diabetic retinopathy (DR) treatments over the next 10 years following diagnosis were also analyzed. Results The 41,522 subjects were respectively assigned to a periodic screening group (n = 3850) and nonperiodic screening group (n = 37,672). Significant differences were observed between the two groups in terms of age, Charlson Comorbidity Index (CCI), sex, DR treatment, and the prevalence of DR. The association between periodic screening and DR treatment, only the elderly, female, and patient with severe CCI status showed the significance in the further stratified analysis. Conclusion Periodic screening (annual or biannual screening in the first 5 years) was more effective than nonperiodic screening in detecting instances of DR in the middle-to-advanced aged group but not among younger patients. Screening pattern did not have a significant effect on the likelihood of DR-related treatment during the 5-year follow-up. It appears that a tight screening schedule for the first 5 years after diagnosis with diabetes is not necessary.
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Affiliation(s)
- Yu-Chien Chung
- Department of Ophthalmology, Fu Jen Catholic University Hospital, Fu Jen Catholic University, New Taipei City, Taiwan.,Graduate Institute of Business Administration, Fu Jen Catholic University, New Taipei City, Taiwan.,School of Medicine, Fu Jen Catholic University, New Taipei City, Taiwan
| | - Ting Xu
- Department Endocrinology and Metabolism, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Taizhou, China
| | - Tao-Hsin Tung
- Evidence-Based Medicine Center, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Taizhou, China
| | - Mingchih Chen
- Graduate Institute of Business Administration, Fu Jen Catholic University, New Taipei City, Taiwan.,Artificial Intelligence Development Center, Fu Jen Catholic University, New Taipei City, Taiwan
| | - Pei-En Chen
- Institute of Health Policy and Management, National Taiwan University, Taipei, Taiwan.,Taiwan Association of Health Industry Management and Development, Taipei, Taiwan
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Aikaeli F, Njim T, Gissing S, Moyo F, Alam U, Mfinanga SG, Okebe J, Ramaiya K, Webb EL, Jaffar S, Garrib A. Prevalence of microvascular and macrovascular complications of diabetes in newly diagnosed type 2 diabetes in low-and-middle-income countries: A systematic review and meta-analysis. PLOS GLOBAL PUBLIC HEALTH 2022; 2:e0000599. [PMID: 36962416 PMCID: PMC10021817 DOI: 10.1371/journal.pgph.0000599] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 05/19/2022] [Indexed: 11/19/2022]
Abstract
There is an excessive burden of diabetes complications in low-resource settings. We conducted a systematic review to determine the nature and frequency of diabetes complications in newly diagnosed with type 2 diabetes. A systematic search was performed using Medline, CINAHL and Global Health online databases from inception to July 2020. Articles reporting prevalence of microvascular or macrovascular complications within six months of type 2 diabetes diagnosis and published in English or French from low- and middle-income countries (LMICs) were eligible for analysis. Data were extracted using a standardized data extraction tool. Descriptive statistics were used to describe the prevalence of micro and macrovascular complications in newly diagnosed type 2 diabetes. Assessment of heterogeneity was conducted using the inconsistency index (I2) and Cochran-Q chi2 statistical tests. Publication bias was assessed by the Funnel plot and Egger test. A total of 3 292 records underwent title or abstract screening and 95 articles underwent full text review. Thirty-three studies describing 13 283 participants (aged 20 years and older) met the inclusion criteria. The eligible studies were from Asia (n = 24), Africa (n = 4), Oceania (n = 2), South America (n = 2) and the Caribbean (n = 1). For microvascular complications, the median prevalence (interquartile range) of retinopathy, nephropathy and neuropathy were 12% (6%-15%), 15% (7%-35%) and 16% (10%25%) respectively. For macrovascular complications, the median prevalence (interquartile range) was 10% (7%-17%) for ischaemic heart disease, 6% (1%-20%) for peripheral arterial disease and 2% (1%-4%) for stroke. There was evidence of substantial heterogeneity between studies for all outcomes (I2 > 90%. We found a high prevalence of complications in newly diagnosed type 2 diabetes in LMICs. Findings suggest that many people live with diabetes and are only diagnosed when they present with complications in LMICs. Research is needed to guide timely and effective identification of people living with diabetes in these settings.
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Affiliation(s)
- Faith Aikaeli
- Muhimbili Medical Research Centre, National Institute for Medical Research, Dar Es Salaam, Tanzania
| | - Tsi Njim
- Department of International Public Health, Liverpool School of Tropical Medicine, Liverpool, United Kingdom
| | - Stefanie Gissing
- School of Public Health Yorkshire & Humber, Leeds Teaching Hospitals NHS Trust, Leeds, United Kingdom
| | - Faith Moyo
- Department of International Public Health, Liverpool School of Tropical Medicine, Liverpool, United Kingdom
| | - Uazman Alam
- Institute of Life Course and Medical Sciences and the Pain Research Institute, University of Liverpool and Liverpool University Hospital NHS Foundation Trust, Liverpool, United Kingdom
- Division of Endocrinology, Diabetes and Gastroenterology, University of Manchester, Manchester, United Kingdom
| | - Sayoki G Mfinanga
- Muhimbili Medical Research Centre, National Institute for Medical Research, Dar Es Salaam, Tanzania
- Department of International Public Health, Liverpool School of Tropical Medicine, Liverpool, United Kingdom
| | - Joseph Okebe
- Department of International Public Health, Liverpool School of Tropical Medicine, Liverpool, United Kingdom
| | | | - Emily L Webb
- Medical Research Council International Statistics and Epidemiology Group, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Shabbar Jaffar
- Department of International Public Health, Liverpool School of Tropical Medicine, Liverpool, United Kingdom
| | - Anupam Garrib
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, United Kingdom
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