Retinal vascular fractal dimension and risk of early diabetic retinopathy: A prospective study of children and adolescents with type 1 diabetes.
OBJECTIVE
To examine the prospective association of retinal vascular fractal dimension with diabetic retinopathy risk in young people with type 1 diabetes.


METHODS
This was a hospital-based prospective study of 590 patients aged 12-20 years with type 1 diabetes free of retinopathy at baseline. All patients had seven-field retinal photographs taken of both eyes. Incident retinopathy was ascertained from retinal photographs taken at follow-up visits. Fractal dimension was measured from baseline photographs using a computer-based program following a standardized protocol.


RESULTS
Over a mean +/- SD follow-up period of 2.9 +/- 2.0 years, 262 participants developed mild nonproliferative diabetic retinopathy (15.0 per 100 person-years). After adjusting for age, sex, diabetes duration, A1C, and other risk factors, we found no association between retinal vascular fractal dimension and incident retinopathy.


CONCLUSIONS
Retinal vascular fractal dimension was not associated with incident early diabetic retinopathy in this sample of children and adolescents with type 1 diabetes.
Lim
Shueh Wen
SW
Centre for Eye Research Australia, Royal Victorian Eye & Ear Hospital, University of Melbourne, Melbourne, Australia.
Cheung
Ning
N
Wang
Jie J
JJ
Donaghue
Kim C
KC
Liew
Gerald
G
Islam
F M Amirul
FM
Jenkins
Alicia J
AJ
Wong
Tien Y
TY
D000293:Adolescent; D002648:Child; D003922:Diabetes Mellitus, Type 1 / Q000150:complications* / Q000503:physiopathology; D003930:Diabetic Retinopathy / Q000453:epidemiology* / Q000503:physiopathology; D005500:Follow-Up Studies; D017709:Fractals; D007839:Functional Laterality; D006801:Humans; D015994:Incidence; D018579:Patient Selection; D010781:Photography; D016016:Proportional Hazards Models; D011446:Prospective Studies; D012044:Regression Analysis; D012171:Retinal Vessels / Q000503:physiopathology*; D012307:Risk Factors; D055815:Young Adult
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