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The significance of the prepubertal diabetes duration for the development of retinopathy and nephropathy in patients with type 1 diabetes

Objective: A Danish nationwide prospective cohort of children and adolescents with type 1 diabetes was followed for 8 years to study the effect of the prepubertal duration of diabetes on early retinopathy and elevated albumin excretion rate (AER) (>20 μg/min). Research Design and Methods: In 1989...

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Published in:Journal of diabetes and its complications 2004-05, Vol.18 (3), p.160-164
Main Authors: Olsen, Birthe S., Sjølie, Anne Katrin, Hougaard, Philip, Johannesen, Jesper, Marinelli, Karin, Jacobsen, Bent Brock, Mortensen, Henrik B.
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cited_by cdi_FETCH-LOGICAL-c358t-3f383a30737e0d88c707ab1ef081c78846b05c7155219f1e388df2417d80c8f73
cites cdi_FETCH-LOGICAL-c358t-3f383a30737e0d88c707ab1ef081c78846b05c7155219f1e388df2417d80c8f73
container_end_page 164
container_issue 3
container_start_page 160
container_title Journal of diabetes and its complications
container_volume 18
creator Olsen, Birthe S.
Sjølie, Anne Katrin
Hougaard, Philip
Johannesen, Jesper
Marinelli, Karin
Jacobsen, Bent Brock
Mortensen, Henrik B.
description Objective: A Danish nationwide prospective cohort of children and adolescents with type 1 diabetes was followed for 8 years to study the effect of the prepubertal duration of diabetes on early retinopathy and elevated albumin excretion rate (AER) (>20 μg/min). Research Design and Methods: In 1989, blood glucose control (HbA1c) and AER was investigated in approximately 80% of all Danish children and adolescents with type 1 diabetes. A cohort of 339 young patients were restudied in 1995 including physical examination, demographic data, HbA1c, AER, and fundus photography with central reading. Among the patients, a number of 304 had a prepubertal onset of diabetes defined as an onset age less than 11.7 years in girls and 12.9 years in boys. Microalbuminuria was defined as an AER of 20–150 μg min−1 and macroalbuminuria as AER >150 μg min−1 in two out of three timed overnight urine samples. Results: At the follow-up in 1995–1996, no patients were younger than 12 years of age. The prevalence of any level of retinopathy was 17.7% in the age group 12–15 years, 45.4% from 16 to 20 years, and increased to 67.6% in patients more than 20 years of age. Diabetic retinopathy was significantly associated to poor long-term metabolic control (HbA1c) (P
doi_str_mv 10.1016/S1056-8727(03)00073-4
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Research Design and Methods: In 1989, blood glucose control (HbA1c) and AER was investigated in approximately 80% of all Danish children and adolescents with type 1 diabetes. A cohort of 339 young patients were restudied in 1995 including physical examination, demographic data, HbA1c, AER, and fundus photography with central reading. Among the patients, a number of 304 had a prepubertal onset of diabetes defined as an onset age less than 11.7 years in girls and 12.9 years in boys. Microalbuminuria was defined as an AER of 20–150 μg min−1 and macroalbuminuria as AER &gt;150 μg min−1 in two out of three timed overnight urine samples. Results: At the follow-up in 1995–1996, no patients were younger than 12 years of age. The prevalence of any level of retinopathy was 17.7% in the age group 12–15 years, 45.4% from 16 to 20 years, and increased to 67.6% in patients more than 20 years of age. Diabetic retinopathy was significantly associated to poor long-term metabolic control (HbA1c) (P&lt;.0001) and to diabetes duration both in patients with a prepubertal onset of disease as well as patients with a pubertal (P&lt;.001) onset of disease. However, the pubertal diabetes duration contributed two times more than the prepubertal diabetes duration. Mean postpubertal diabetes duration to any retinopathy was significantly shorter (9.4 years) in patients with prepubertal onset of the disease compared to patients with postpubertal onset (11.8 years) (P=.0004). In total, the prevalence of elevated AER (&gt;20 μg/min) increased from 4% in 1989 to 13% in 1995. None of the patients younger than 15 years of age had elevated AER, while the prevalence of elevated AER was about 14% from 15 years of age and onwards. Elevated AER in 1995 was significantly related to long-term metabolic control (P&lt;.001) and elevated AER in the preceding years (P&lt;.001) but was not correlated to diabetes duration neither before nor after the age of 12 years. Conclusion: The prepubertal diabetes duration is significantly associated with the development of diabetic retinopathy. The period, however, contributes less compared to the years after puberty. In concert with other studies, we found no association between raised AER and diabetes duration. This may be explained by the fact that other factors are more significant and dilute the significance of diabetes duration. Nonetheless, it seems prudent to optimise blood glucose control irrespective of age.</description><identifier>ISSN: 1056-8727</identifier><identifier>EISSN: 1873-460X</identifier><identifier>DOI: 10.1016/S1056-8727(03)00073-4</identifier><identifier>PMID: 15145327</identifier><language>eng</language><publisher>United States: Elsevier Inc</publisher><subject>Adolescent ; Adolescents ; Adult ; Age of Onset ; Albuminuria - complications ; Albuminuria - physiopathology ; Blood pressure ; Child ; Children &amp; youth ; Cohort Studies ; Confidence intervals ; Denmark - epidemiology ; Diabetes ; Diabetes Mellitus, Type 1 - complications ; Diabetes Mellitus, Type 1 - diagnosis ; Diabetes Mellitus, Type 1 - physiopathology ; Diabetic Nephropathies - complications ; Diabetic Nephropathies - epidemiology ; Diabetic nephropathy ; Diabetic retinopathy ; Diabetic Retinopathy - complications ; Diabetic Retinopathy - epidemiology ; Disease Progression ; Female ; Follow-Up Studies ; Forecasting ; Glycated Hemoglobin A - adverse effects ; Glycated Hemoglobin A - chemistry ; Glycosylated haemoglobin ; Humans ; Male ; Pediatrics ; Pre-pubertal diabetes duration ; Prospective Studies ; Puberty - physiology ; Studies ; Teenagers ; Time Factors ; Type 1 diabetes</subject><ispartof>Journal of diabetes and its complications, 2004-05, Vol.18 (3), p.160-164</ispartof><rights>2004 Elsevier Inc.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c358t-3f383a30737e0d88c707ab1ef081c78846b05c7155219f1e388df2417d80c8f73</citedby><cites>FETCH-LOGICAL-c358t-3f383a30737e0d88c707ab1ef081c78846b05c7155219f1e388df2417d80c8f73</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/15145327$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Olsen, Birthe S.</creatorcontrib><creatorcontrib>Sjølie, Anne Katrin</creatorcontrib><creatorcontrib>Hougaard, Philip</creatorcontrib><creatorcontrib>Johannesen, Jesper</creatorcontrib><creatorcontrib>Marinelli, Karin</creatorcontrib><creatorcontrib>Jacobsen, Bent Brock</creatorcontrib><creatorcontrib>Mortensen, Henrik B.</creatorcontrib><creatorcontrib>the Danish Study Group of Diabetes in Childhood</creatorcontrib><creatorcontrib>Danish Study Group of Diabetes in Childhood</creatorcontrib><title>The significance of the prepubertal diabetes duration for the development of retinopathy and nephropathy in patients with type 1 diabetes</title><title>Journal of diabetes and its complications</title><addtitle>J Diabetes Complications</addtitle><description>Objective: A Danish nationwide prospective cohort of children and adolescents with type 1 diabetes was followed for 8 years to study the effect of the prepubertal duration of diabetes on early retinopathy and elevated albumin excretion rate (AER) (&gt;20 μg/min). Research Design and Methods: In 1989, blood glucose control (HbA1c) and AER was investigated in approximately 80% of all Danish children and adolescents with type 1 diabetes. A cohort of 339 young patients were restudied in 1995 including physical examination, demographic data, HbA1c, AER, and fundus photography with central reading. Among the patients, a number of 304 had a prepubertal onset of diabetes defined as an onset age less than 11.7 years in girls and 12.9 years in boys. Microalbuminuria was defined as an AER of 20–150 μg min−1 and macroalbuminuria as AER &gt;150 μg min−1 in two out of three timed overnight urine samples. Results: At the follow-up in 1995–1996, no patients were younger than 12 years of age. The prevalence of any level of retinopathy was 17.7% in the age group 12–15 years, 45.4% from 16 to 20 years, and increased to 67.6% in patients more than 20 years of age. Diabetic retinopathy was significantly associated to poor long-term metabolic control (HbA1c) (P&lt;.0001) and to diabetes duration both in patients with a prepubertal onset of disease as well as patients with a pubertal (P&lt;.001) onset of disease. However, the pubertal diabetes duration contributed two times more than the prepubertal diabetes duration. Mean postpubertal diabetes duration to any retinopathy was significantly shorter (9.4 years) in patients with prepubertal onset of the disease compared to patients with postpubertal onset (11.8 years) (P=.0004). In total, the prevalence of elevated AER (&gt;20 μg/min) increased from 4% in 1989 to 13% in 1995. None of the patients younger than 15 years of age had elevated AER, while the prevalence of elevated AER was about 14% from 15 years of age and onwards. Elevated AER in 1995 was significantly related to long-term metabolic control (P&lt;.001) and elevated AER in the preceding years (P&lt;.001) but was not correlated to diabetes duration neither before nor after the age of 12 years. Conclusion: The prepubertal diabetes duration is significantly associated with the development of diabetic retinopathy. The period, however, contributes less compared to the years after puberty. In concert with other studies, we found no association between raised AER and diabetes duration. This may be explained by the fact that other factors are more significant and dilute the significance of diabetes duration. 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Research Design and Methods: In 1989, blood glucose control (HbA1c) and AER was investigated in approximately 80% of all Danish children and adolescents with type 1 diabetes. A cohort of 339 young patients were restudied in 1995 including physical examination, demographic data, HbA1c, AER, and fundus photography with central reading. Among the patients, a number of 304 had a prepubertal onset of diabetes defined as an onset age less than 11.7 years in girls and 12.9 years in boys. Microalbuminuria was defined as an AER of 20–150 μg min−1 and macroalbuminuria as AER &gt;150 μg min−1 in two out of three timed overnight urine samples. Results: At the follow-up in 1995–1996, no patients were younger than 12 years of age. The prevalence of any level of retinopathy was 17.7% in the age group 12–15 years, 45.4% from 16 to 20 years, and increased to 67.6% in patients more than 20 years of age. Diabetic retinopathy was significantly associated to poor long-term metabolic control (HbA1c) (P&lt;.0001) and to diabetes duration both in patients with a prepubertal onset of disease as well as patients with a pubertal (P&lt;.001) onset of disease. However, the pubertal diabetes duration contributed two times more than the prepubertal diabetes duration. Mean postpubertal diabetes duration to any retinopathy was significantly shorter (9.4 years) in patients with prepubertal onset of the disease compared to patients with postpubertal onset (11.8 years) (P=.0004). In total, the prevalence of elevated AER (&gt;20 μg/min) increased from 4% in 1989 to 13% in 1995. None of the patients younger than 15 years of age had elevated AER, while the prevalence of elevated AER was about 14% from 15 years of age and onwards. Elevated AER in 1995 was significantly related to long-term metabolic control (P&lt;.001) and elevated AER in the preceding years (P&lt;.001) but was not correlated to diabetes duration neither before nor after the age of 12 years. Conclusion: The prepubertal diabetes duration is significantly associated with the development of diabetic retinopathy. The period, however, contributes less compared to the years after puberty. In concert with other studies, we found no association between raised AER and diabetes duration. This may be explained by the fact that other factors are more significant and dilute the significance of diabetes duration. Nonetheless, it seems prudent to optimise blood glucose control irrespective of age.</abstract><cop>United States</cop><pub>Elsevier Inc</pub><pmid>15145327</pmid><doi>10.1016/S1056-8727(03)00073-4</doi><tpages>5</tpages></addata></record>
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identifier ISSN: 1056-8727
ispartof Journal of diabetes and its complications, 2004-05, Vol.18 (3), p.160-164
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subjects Adolescent
Adolescents
Adult
Age of Onset
Albuminuria - complications
Albuminuria - physiopathology
Blood pressure
Child
Children & youth
Cohort Studies
Confidence intervals
Denmark - epidemiology
Diabetes
Diabetes Mellitus, Type 1 - complications
Diabetes Mellitus, Type 1 - diagnosis
Diabetes Mellitus, Type 1 - physiopathology
Diabetic Nephropathies - complications
Diabetic Nephropathies - epidemiology
Diabetic nephropathy
Diabetic retinopathy
Diabetic Retinopathy - complications
Diabetic Retinopathy - epidemiology
Disease Progression
Female
Follow-Up Studies
Forecasting
Glycated Hemoglobin A - adverse effects
Glycated Hemoglobin A - chemistry
Glycosylated haemoglobin
Humans
Male
Pediatrics
Pre-pubertal diabetes duration
Prospective Studies
Puberty - physiology
Studies
Teenagers
Time Factors
Type 1 diabetes
title The significance of the prepubertal diabetes duration for the development of retinopathy and nephropathy in patients with type 1 diabetes
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