scholarly journals Presence and Determinants of Cardiovascular Disease and Mortality in Individuals With Type 1 Diabetes of Long Duration: The FinnDiane 50 Years of Diabetes Study

2021 ◽  
Author(s):  
Valma Harjutsalo ◽  
Drazenka Pongrac Barlovic ◽  
Daniel Gordin ◽  
Carol Forsblom ◽  
George King ◽  
...  

<b>Objective</b> <p>The aim of this study was to determine the incidence of cardiovascular disease (CVD) and mortality as well as their risk factors in type 1 diabetes (T1D) with more than 50-years duration. </p> <p><b>Methods</b><b></b></p> <p>From 5,396 individuals included in the Finnish Diabetic Nephropathy Study, 729 diagnosed in 1967 or earlier survived with T1D for more than 50 years. In this FinnDiane 50-year cohort, cumulative incidence of CVD events was assessed from the diagnosis of diabetes, and the excess CVD risk, compared to matched 12,710 individuals without diabetes, was calculated by Fine and Gray’s method. In addition, at the baseline visit (median duration of diabetes of 39 years) risk factors for different types of CVD (both non-fatal and fatal) and mortality were analyzed and cause-specific hazard ratios were estimated during a median follow-up of 16.6 years from the baseline visit. </p> <p><b>Results</b> </p> <p>In individuals with diabetes duration of more than 50 years, the 60-year cumulative incidence of CVD from the diagnosis of diabetes was 64.3% (62.5-66.0). Compared to individuals without diabetes, the standardized incidence ratio for CVD was 7.4 (6.5-8.3) and was in persons with normoalbuminuria 4.9 (4.0-5.9). Mean HbA<sub>1c</sub> and HbA<sub>1c</sub> variability, dyslipidemia, BMI, kidney disease, age and diabetes duration were the variables associated with incident CVD. In particular, HbA<sub>1c </sub>was associated with peripheral artery disease (PAD). Standardized mortality ratio compared with the Finnish background population was 3.2 (2.8-3.7). The factors, associated with mortality were diabetes duration, increased HbA<sub>1c</sub> variability, inflammation, insulin resistance, kidney disease and PAD.</p> <p><b> </b></p> <p><b>Conclusions</b></p> <p>Individuals with T1D of very long duration are at a high risk of CVD. In addition, throughout the lifespan, optimal glycemic control remains central to CVD and excess mortality prevention. </p>

2021 ◽  
Author(s):  
Valma Harjutsalo ◽  
Drazenka Pongrac Barlovic ◽  
Daniel Gordin ◽  
Carol Forsblom ◽  
George King ◽  
...  

<b>Objective</b> <p>The aim of this study was to determine the incidence of cardiovascular disease (CVD) and mortality as well as their risk factors in type 1 diabetes (T1D) with more than 50-years duration. </p> <p><b>Methods</b><b></b></p> <p>From 5,396 individuals included in the Finnish Diabetic Nephropathy Study, 729 diagnosed in 1967 or earlier survived with T1D for more than 50 years. In this FinnDiane 50-year cohort, cumulative incidence of CVD events was assessed from the diagnosis of diabetes, and the excess CVD risk, compared to matched 12,710 individuals without diabetes, was calculated by Fine and Gray’s method. In addition, at the baseline visit (median duration of diabetes of 39 years) risk factors for different types of CVD (both non-fatal and fatal) and mortality were analyzed and cause-specific hazard ratios were estimated during a median follow-up of 16.6 years from the baseline visit. </p> <p><b>Results</b> </p> <p>In individuals with diabetes duration of more than 50 years, the 60-year cumulative incidence of CVD from the diagnosis of diabetes was 64.3% (62.5-66.0). Compared to individuals without diabetes, the standardized incidence ratio for CVD was 7.4 (6.5-8.3) and was in persons with normoalbuminuria 4.9 (4.0-5.9). Mean HbA<sub>1c</sub> and HbA<sub>1c</sub> variability, dyslipidemia, BMI, kidney disease, age and diabetes duration were the variables associated with incident CVD. In particular, HbA<sub>1c </sub>was associated with peripheral artery disease (PAD). Standardized mortality ratio compared with the Finnish background population was 3.2 (2.8-3.7). The factors, associated with mortality were diabetes duration, increased HbA<sub>1c</sub> variability, inflammation, insulin resistance, kidney disease and PAD.</p> <p><b> </b></p> <p><b>Conclusions</b></p> <p>Individuals with T1D of very long duration are at a high risk of CVD. In addition, throughout the lifespan, optimal glycemic control remains central to CVD and excess mortality prevention. </p>


2021 ◽  
Author(s):  
Rachel G. Miller ◽  
Trevor J. Orchard ◽  
Tina Costacou

<b>Objective:</b> We hypothesized that there is heterogeneity in long-term patterns of glycemic control with respect to cardiovascular disease (CVD) development in type 1 diabetes and that risk factors for CVD differ by glycemic control pattern. Thus, we estimated associations between data-derived latent HbA1c trajectories and 30-year CVD risk in the Pittsburgh Epidemiology of Diabetes Complications (EDC) study of childhood-onset (<17 years old) type 1 diabetes.<b> </b> <p><b>Research Design and Methods: </b>Participants (n=536 with ≥2 HbA1c measurements [median 6] and CVD-free at baseline; mean age 27 and diabetes duration 18 years) were followed from 1986-88 to 2016-18 to ascertain CVD incidence (CVD death, myocardial infarction, stroke, coronary revascularization or blockage ≥50%, ischemic ECG, or angina). Latent HbA1c trajectories and their association with time-to-CVD incidence were simultaneously assessed using Joint Latent Class Mixed Models.</p> <p><b>Results:</b> Two HbA1c trajectories with respect to differential CVD risk were identified: Low (HbA1c ~8% [64 mmol/mol] and improving over follow-up, 76% of cohort) and High (HbA1c ~10% [86 mmol/mol] and stable, 24%). Overall, 30-year CVD incidence was 47.4% (n=253); MACE incidence 31.0% (n=176). High HbA1c was associated with 3-fold increased CVD risk versus Low HbA1c. Both groups had similar age and diabetes duration. Non-HDLc and estimated glomerular filtration rate were associated with CVD risk only in Low HbA1c; albumin excretion rate was associated with CVD risk only in High HbA1c.<b> </b></p> <p><b>Conclusions: </b>These risk factor differences suggest that pathways to CVD may differ by glycemic control, potentially resulting in important implications for prognosis in type 1 diabetes.</p>


Diabetologia ◽  
2019 ◽  
Vol 63 (3) ◽  
pp. 636-647 ◽  
Author(s):  
Marco Colombo ◽  
◽  
Stuart J. McGurnaghan ◽  
Samira Bell ◽  
Finlay MacKenzie ◽  
...  

Abstract Aims/hypothesis The aim of this study was to provide data from a contemporary population-representative cohort on rates and predictors of renal decline in type 1 diabetes. Methods We used data from a cohort of 5777 people with type 1 diabetes aged 16 and older, diagnosed before the age of 50, and representative of the adult population with type 1 diabetes in Scotland (Scottish Diabetes Research Network Type 1 Bioresource; SDRNT1BIO). We measured serum creatinine and urinary albumin/creatinine ratio (ACR) at recruitment and linked the data to the national electronic healthcare records. Results Median age was 44.1 years and diabetes duration 20.9 years. The prevalence of CKD stages G1, G2, G3 and G4 and end-stage renal disease (ESRD) was 64.0%, 29.3%, 5.4%, 0.6%, 0.7%, respectively. Micro/macroalbuminuria prevalence was 8.6% and 3.0%, respectively. The incidence rate of ESRD was 2.5 (95% CI 1.9, 3.2) per 1000 person-years. The majority (59%) of those with chronic kidney disease stages G3–G5 did not have albuminuria on the day of recruitment or previously. Over 11.6 years of observation, the median annual decline in eGFR was modest at −1.3 ml min−1 [1.73 m]−2 year−1 (interquartile range [IQR]: −2.2, −0.4). However, 14% experienced a more significant loss of at least 3 ml min−1 [1.73 m]−2. These decliners had more cardiovascular disease (OR 1.9, p = 5 × 10−5) and retinopathy (OR 1.3 p = 0.02). Adding HbA1c, prior cardiovascular disease, recent mean eGFR and prior trajectory of eGFR to a model with age, sex, diabetes duration, current eGFR and ACR maximised the prediction of final eGFR (r2 increment from 0.698 to 0.745, p < 10−16). Attempting to model nonlinearity in eGFR decline or to detect latent classes of decliners did not improve prediction. Conclusions These data show much lower levels of kidney disease than historical estimates. However, early identification of those destined to experience significant decline in eGFR remains challenging.


Diabetes ◽  
2018 ◽  
Vol 67 (Supplement 1) ◽  
pp. 15-LB
Author(s):  
SANJEEV N. MEHTA ◽  
MENGDI WU ◽  
NICOLE C. FOSTER ◽  
RODICA POP-BUSUI ◽  
MICHELLE KATZ ◽  
...  

Diabetes Care ◽  
2021 ◽  
pp. dc202816
Author(s):  
Valma Harjutsalo ◽  
Drazenka Pongrac Barlovic ◽  
Daniel Gordin ◽  
Carol Forsblom ◽  
George King ◽  
...  

2000 ◽  
Vol 50 ◽  
pp. 298
Author(s):  
Marino M Noutsou ◽  
Anastasia C Thanopoulou ◽  
Athanasios J Kofinis ◽  
Charalambos D Tountas ◽  
Nikolaos A Papazoglou ◽  
...  

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