Care of vision and ocular health in diabetic members of a national diabetes organization: a cross-sectional study
Regular examination and early treatment of diabetic retinopathy can prevent visual loss. The aim of the study was to describe the care of vision and ocular health in people with diabetes in Norway.
Methods: A cross-sectional questionnaire survey of a random sample (n= 1,887) of the Norwegian Diabetic Associations' (NDA) members was carried out in 2005.
Questions were asked about care of vision and ocular health, history of ocular disease and visual symptoms, general medical history and diabetes management. The study was approved by the Regional Committee for Medical Research Ethics.
Results: The response rate was 74%.
Forty-four questionnaires with incomplete data regarding gender, age or type of diabetes were excluded, leaving 1352 cases (52% females) for analysis. 451 (33%) had type 1 and 901 (67%) had type 2 diabetes, the mean duration of diabetes was respectively, 22 (sd+/-14) and 10 (sd+/-9) years.
In all 1,052 (78%) had their eyes examined according to guidelines and 1,169 (87%) confirmed to have received information about regular eye examinations. One in two recalled to have received such information from their general practitioner.
To have received information about the importance of eye examinations (PR 3.1, 95% CI 2.4 to 4.0), and diabetes duration > 10 years (PR 1.2, 95% CI 1.2 to 1.3), were independently associated with reporting regular eye examinations. A history of diabetic retinopathy was reported by 178 (13%) responders, of which 101 (57%) reported a history of laser treatment.
Responders who had regular eye examinations reported more frequently a history of diabetic retinopathy (19% vs. 5%, p<0.001).
The frequency of retinopathy was significantly higher in responders with reported HbA1c values above treatment target (23% vs. 13%, p=0.001).
However, in responders who were not regularly examined, there was no difference in reported frequency of retinopathy with regard to HbA1c level.
Conclusions: Eight out of ten diabetic members of the NDA had their eyes examined according to current guidelines and the majority was well informed about the risk of vision loss due to diabetes.
The results indicate that the reported history of diabetic retinopathy likely underestimates the prevalence of retinopathy.
Author: Vibeke Sundling, Pal Gulbrandsen, Jak Jervell and Jorund Straand
Credits/Source: BMC Health Services Research 2008, 8:159
Published on: 2008-07-28
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