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Association of Diabetic Retinopathy and Diabetic Kidney Disease With All-Cause and Cardiovascular Mortality in a Multiethnic Asian Population.

ABSTRACT: Importance:The association of diabetic microvascular complications such as diabetic retinopathy (DR) and diabetic kidney disease (DKD) with mortality in populations is not clear. Objective:To examine the association of DR and DKD separately and jointly with all-cause and cardiovascular disease (CVD) mortality in a multiethnic Asian population. Design, Setting, and Participants:A population-based cohort study was conducted including 2964 adults between the ages of 40 and 80 years with diabetes who participated in the Singapore Epidemiology of Eye Diseases study (baseline, 2004-2011). Data analysis was performed from January to May 2018. Exposures:Diabetic retinopathy ascertained from retinal photographs and DKD from estimated glomerular filtration rate. Main Outcomes and Measures:All-cause and CVD mortality obtained by linkage with the National Registry of Births and Deaths until May 2017. Results:Of the 2964 adults (mean [SD] age, 61.8 [10.0] years; 1464 [49.4%] female; 592 Chinese, 1052 Malay, and 1320 Indian), 29.9% of the participants had DR, while 20.7% had DKD. Over a median (interquartile range) follow-up of 8.8 (7.2-11.0) years, 610 deaths occurred (20.6%), of which 267 (9.0%) were due to CVD. In separate models, the multivariable hazard ratios for all-cause and CVD mortality were 1.54 (95% CI, 1.24-1.91) and 1.74 (95% CI, 1.27-2.40), respectively, for DR and 2.04 (95% CI, 1.64-2.56) and 2.29 (95% CI, 1.64-3.19), respectively, for DKD. In models including both DR and DKD, the subgroup with DKD alone (27.1% and 12.6%) followed by DR alone (6.5% and 5.2%) contributed substantially to the excess risk of all-cause and CVD mortality. Compared with those with no DR and DKD, the hazard ratios of all-cause and CVD mortality were 1.89 (95% CI, 1.40-2.57) and 2.26 (95% CI, 1.42-3.61), respectively, for DKD alone and 1.38 (95% CI, 1.03-1.86) and 1.64 (95% CI, 1.06-2.56), respectively, for DR alone. Hazard ratios for all-cause and CVD mortality were 2.76 (95% CI, 2.05-3.72) and 3.41 (95% CI, 2.19-5.32), respectively, for those with both DKD and DR. The relative excess risk associated with the interaction was 0.49 (95% CI, -0.29 to 1.27; P?=?.20) for all-cause mortality and 0.51 (95% CI, -0.83 to 1.85; P?=?.50) for CVD mortality. Conclusions and Relevance:These results suggest that risks of all-cause and CVD mortality were significantly higher in those with DKD and DR, but DKD was more strongly associated with excess risk. The findings underscore the importance of early identification and close monitoring and management of patients with DR and DKD to reduce the risk of death.

SUBMITTER: Sabanayagam C

PROVIDER: S-EPMC6450319 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature

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Association of Diabetic Retinopathy and Diabetic Kidney Disease With All-Cause and Cardiovascular Mortality in a Multiethnic Asian Population.

Sabanayagam Charumathi C Chee Miao Li ML Banu Riswana R Cheng Ching-Yu CY Lim Su Chi SC Tai E Shyong ES Coffman Thomas T Wong Tien Y TY

JAMA network open 20190301 3

<h4>Importance</h4>The association of diabetic microvascular complications such as diabetic retinopathy (DR) and diabetic kidney disease (DKD) with mortality in populations is not clear.<h4>Objective</h4>To examine the association of DR and DKD separately and jointly with all-cause and cardiovascular disease (CVD) mortality in a multiethnic Asian population.<h4>Design, setting, and participants</h4>A population-based cohort study was conducted including 2964 adults between the ages of 40 and 80 ...[more]

PMID: 30924904

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Project description:BackgroundDiabetes is prevalent worldwide and is associated with cardiovascular disease (CVD). Furthermore, due to the insulin resistance, diabetic populations are vulnerable to liver fibrosis, which increases the risk of CVD. Fibrosis-4 index (FIB-4)-a non-invasive biomarker for liver fibrosis-is crucial in predicting CVD among patients with liver diseases. However, the association between FIB-4, death, and CVD in the US diabetic population has not yet been investigated.MethodWe conducted a cross-sectional study using the data from the National Health and Nutrition Examination Survey (NHANES) 1999-2008. The mortality status was obtained from the National Death Index through December 31, 2015. Participants were divided into survivor and mortality group to compare the basic characteristics. The association between FIB-4, death, and CVD was analyzed using the restricted cubic spline method and Cox proportional hazards models. In stratified analysis, Participants were stratified based on age, sex, BMI, hypertension, or eGFR respectively.ResultsThe participants (N = 3,471) were divided into survivor (N = 1,785) and mortality groups (N = 1,632), with the mortality group exhibiting significantly higher FIB-4 values. Moreover, the risk of all-cause mortality (HR 1.24; 95% CI, 1.17-1.32) and CVD mortality (HR 1.17; 95% CI, 1.04-1.31) increased with each FIB-4 SD increase after adjusting for all covariates. However, except for myocardial infarction, FIB-4 had no significant effect on the incidence of the other three CVD subtypes (congestive heart failure, coronary heart disease, and angina pectoris). In stratified analysis, we found that the effect of FIB-4 on CVD mortality was influenced by age, and FIB-4 is a risk factor for people older than 60 years (HR 1.14; 95% CI, 1.01-1.29).ConclusionUsing data from NHANES 1999-2008, FIB-4 was found to be associated with all-cause and CVD mortality in the diabetic population, and this association was significantly affected by age. However, FIB-4 only affected the incidence of myocardial infarction. Future work should investigate the association between FIB-4 and CVD in the diabetic population.

Project description:Importance:The comorbidity of chronic kidney disease and diabetic retinopathy (DR) is well known. However, to our knowledge, no cohort study has demonstrated the effect of chronic kidney disease on the development or progression of DR. Objective:To investigate the association of chronic kidney disease with the development of DR and diabetic macular edema (DME) in type 2 diabetes. Design, Setting, and Participants:This 8-year prospective cohort study that was conducted in 2 medical centers in Taiwan included 2135 patients with type 2 diabetes. Exposures:The baseline and mean follow-up renal profiles including serum creatinine level, estimated glomerular filtration rate (eGFR), and urinary albumin/creatinine ratio (ACR). Main Outcomes and Measures:Diabetic retinopathy and DME were detected with nonmydriatic fundus photography. Cox regression analyses was used to evaluate the hazard ratios (HRs) for the renal profiles of new-onset DR, proliferative DR, and DME. Results:The mean (SD) age of the study participants was 63.4 (11.9) years and 1025 (48%) were women. A higher serum creatinine level (HR of 2.358 for an increase of 1 mg/dL [to convert to micromoles per liter, multiply by 76.25]; 95% CI, 1.901-2.924; P < .001), an estimated glomerular filtration rate of less than 60 mL/min/1.73m2 (40-60: HR, 2.235; 95% CI, 1.351-4.035; P = .002; 30-45: HR, 2.625; 95% CI, 1.436-4.798; P = .002; <30: HR, 5.488; 95% CI, 2.739-10.993; P < .001), and a urinary albumin to creatinine ratio (ACR) of more than 30 mg/g (31-300: HR, 3.202; 95% CI, 2.029-5.053; P < .001; >300: HR, 6.652; 95% CI, 3.922-11.285; P < .001) at baseline were all associated with the development of proliferative DR. A baseline urinary ACR of more than 30 mg/g (31-300: HR, 1.563; 95% CI, 1.078-2.267; P = .02; >300: HR, 2.707; 95% CI, 1.640-4.470; -2.707; P < 0.001) was associated with the development of DME. After adjusting the baseline values, the mean follow-up renal profiles, including a higher serum creatinine level (HR, 2.369 per mg/dL; 95% CI, 1.704-3.293; P < .001), an estimated glomerular filtration rate of less than 30 mL/min/1.73m2 (HR, 4.215; 95% CI, 1.265-14.039; P = .02), and a urinary ACR of more than 30 mg/g (31-300: HR, 2.344; 95% CI, 1.200-4.503; P = .01; >300: HR, 4.193; 95% CI, 1.638-10.735; P = .003) were still correlated with new-onset PDR during the follow-up periods. Conclusions and Relevance:Abnormal renal profiles at baseline, including a high serum creatinine level, low estimated glomerular filtration rate, and high urinary ACR, were associated with the development of PDR in patients with type 2 diabetes. A high baseline urinary ACR was associated with DME. Abnormal mean follow-up renal profiles were still correlated with new-onset PDR after adjusting for baseline values. Aggressive treatment for chronic kidney disease may have a role in preventing the deterioration of DR.

Project description:ImportanceThicker or thinner central corneas may lead to either overestimation or underestimation of intraocular pressure, which is the most important causal and treatable risk factor for glaucoma. However, the findings on the associations between diabetes, random glucose, and glycated hemoglobin A1c (HbA1c) with central corneal thickness (CCT) are conflicting.ObjectiveTo evaluate the associations between diabetes, random glucose, and HbA1c with CCT in a multiethnic Asian population.Design, setting, and participantsCross-sectional analysis of the Singapore Epidemiology of Eye Diseases (SEED) Study conducted from 2004 to 2011. A total of 10?033 Chinese, Malay, and Indian individuals 40 years or older residing in Singapore were recruited. Participants with incomplete information on diabetes status (448 participants), prior refractive or cataract surgery (1940 eyes), and corneal edema or dystrophy (29 eyes) were excluded. A meta-analysis was conducted to estimate the overall association of diabetes with CCT.ExposuresStandardized clinical examinations and interviewer-administered questionnaire to collect information about demographic, systemic, and ocular factors.Main outcomes and measuresMeasurement of CCT using ultrasound pachymetry.ResultsA total of 8846 adults (mean [SD] age, 57.9 [9.9] years; 4447 women [50.3%]) (17?201 eyes) were included in the final analyses. The CCT profile was similar among participants with and without diabetes (mean [SD] CCT, 545.3 [33.7] ?m vs 544.8 [33.9] ?m; P?=?.39). Following adjustments of age, sex, ethnicity, corneal curvature, axial length, and body mass index, CCT was a mean (SD) of 4.9 (0.8) ?m (95% CI, 3.3-6.5 ?m) thicker in patients with diabetes than those without diabetes. Multivariable analyses also showed that thicker CCT was associated with higher random glucose (per 10 mg/dL [to convert to mmol/L, multiply by 0.0555], ??=?0.3; 95% CI, 0.2-0.4) and higher HbA1c (per percentage, ??=?1.5; 95% CI, 1.0-2.1) (all P?<?.001). These associations were significant in the subgroup with diabetes but not in the subgroup without diabetes. A meta-analysis including 12 previous population- and clinical-based studies showed that CCT was 12.8 ?m (95% CI, 8.2-17.5 ?m) thicker in eyes of patients with diabetes.Conclusions and relevanceThese findings suggest that diabetes and hyperglycemia were associated with thicker CCT. This study provides useful information on the interpretation of intraocular pressure in patients with diabetes.

Dataset Information

Association of Diabetic Retinopathy and Diabetic Kidney Disease With All-Cause and Cardiovascular Mortality in a Multiethnic Asian Population.

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Association of Diabetic Retinopathy and Diabetic Kidney Disease With All-Cause and Cardiovascular Mortality in a Multiethnic Asian Population.

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