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Prevalence of diabetic eye disease in patients entering a systematic primary care‐based eye screening programme
Author(s) -
Younis N.,
Broadbent D. M.,
Harding S. P.,
Vora J. P.
Publication year - 2002
Publication title -
diabetic medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.474
H-Index - 145
eISSN - 1464-5491
pISSN - 0742-3071
DOI - 10.1046/j.1464-5491.2002.00854.x
Subject(s) - medicine , diabetic retinopathy , population , ophthalmology , sted microscopy , diabetes mellitus , retinopathy , odds ratio , optometry , endocrinology , laser , physics , environmental health , stimulated emission , optics
Aims Large‐scale, baseline prevalence measurements in a population at the institution of systematic retinal screening are currently unavailable. We report the prevalence of all grades of retinopathy at entry into a systematic primary care‐based diabetic eye screening programme. Methods Primary care‐based photographic screening utilizing mydriasis and three‐field non‐stereoscopic photography for all patients with diabetes (except those under continuing care of an ophthalmologist) in Liverpool. Sight‐threatening diabetic eye disease (STED) was defined as any of: moderate preproliferative retinopathy or worse, circinate maculopathy or exudates within one disc diameter of the centre of fovea. Results Type 1 diabetes mellitus (DM) ( n = 831): baseline prevalence (95% confidence interval (CI)) of any retinopathy, proliferative diabetic retinopathy (PDR) and STED was 45.7% (42.3–49.1), 3.7% (2.4–5.0) and 16.4% (13.9–18.9), respectively. Presence of STED was associated with increased disease duration (odds ratio (OR) 1.09 per year; P < 0.0001) and higher in men (OR 2.15; P = 0.001). Type 2 DM ( n = 7231): baseline prevalence (95% CI) of any retinopathy, PDR and STED was 25.3% (24.3–26.3), 0.5% (0.3–0.7) and 6.0% (5.5–6.5), respectively. Presence of STED was associated with longer time since diagnosis of DM (OR 1.03; P < 0.0001) and insulin use (OR 2.46; P < 0.0001). Conclusion This study provides baseline information for health providers on prevalence of all grades of retinopathy and STED in a large population at the establishment of systematic screening. Baseline prevalence of STED was high and highest in patients with a longer disease duration in both Type 1 and Type 2 DM. Diabet. Med. 19, 1014–1021 (2002)