PREVALENCE OF DIABETIC RETINOPATHY AMONG INDIVIDUALS SCREENED POSITIVE FOR DIABETES IN FIVE COMMUNITY-BASED EYE CAMPS IN NORTHERN KARACHI, PAKISTAN
AbstractBackground: Population-based data on the prevalence of diabetic retinopathy in Pakistan arelacking. We determined the prevalence of diabetic retinopathy among individuals screenedpositive for diabetes in five community-based eye camps in northern Karachi, Pakistan. Methods:In summer 2002, five community-based eye camps were set up in Karachi, Pakistan’s largest city.All individuals aged 30 years or older who visited the camps were requested to participate in thestudy. Those who agreed were screened for diabetes and those found to have the disease werereferred to an eye hospital for diabetic retinopathy screening. Verbal informed consent wasobtained from all participants at the examination site. Our main outcome measure was diabeticretinopathy, which was classified as non-proliferative diabetic retinopathy (NPDR), severe NPDR,and proliferative diabetic retinopathy (PDR). Our grading was based on clinical examination.Results: A total of 912 subjects were screened for diabetes mellitus. Of these, 160(17.5%) haddiabetes- 1.8% had type I diabetes and 15.9% had type II diabetes. One hundred and eightindividuals visited the hospital for ophthalmic examination. Of them, 15.7% had diabeticretinopathy. The prevalence of diabetic retinopathy was higher among individuals with type Idiabetes, with greater duration of diabetes, and among women. The commonest form of diabeticretinopathy was non-proliferative (76.5% [mild: 35.3 %, moderate: 29.4 %, and severe: 11.8 %]),followed by maculopathy (17.6 %) and proliferative diabetic retinopathy (5.9 %). Conclusion:More systematic and population-based research is needed to estimate the prevalence of andidentify risk factors for diabetic retinopathy in Pakistan.Key words: diabetic retinopathy, prevalence, Karachi, Pakistan
Standards of Medical Care for Patients With Diabetes Mellitus.
Diabetes Care 2002;25(90001):33S-49.
Fong DS, Aiello LP, Ferris FL, 3rd, Klein R. Diabetic
retinopathy. Diabetes Care 2004;27(10):2540-53.
Shera AS, Rafique G, Khwaja IA, Baqai S, Khan IA, King H.
Pakistan National Diabetes Survey prevalence of glucose
intolerance and associated factors in North West at Frontier
Province (NWFP) of Pakistan. J Pak Med Assoc 1999;49(9):206-
Shera AS, Rafique G, Khwaja IA, Ara J, Baqai S, King H.
Pakistan national diabetes survey: prevalence of glucose
intolerance and associated factors in Shikarpur, Sindh Province.
Diabet Med 1995;12(12):1116-21.
Shera AS, Rafique G, Khawaja IA, Baqai S, King H. Pakistan
National Diabetes Survey: prevalence of glucose intolerance and
associated factors in Baluchistan province. Diabetes Res Clin Pract
Wild S, Roglic G, Green A, Sicree R, King H. Global
prevalence of diabetes: estimates for the year 2000 and projections
for 2030. Diabetes Care 2004;27(5):1047-53.
Basit A, Hydrie MZ, Hakeem R, Ahmedani MY, Masood Q.
Frequency of chronic complications of type II diabetes. J Coll
Physicians Surg Pak 2004;14(2):79-83.
Shera AS, Jawad F, Maqsood A, Jamal S, Azfar M, Ahmed U.
Prevalence of chronic complications and associated factors in type
diabetes. J Pak Med Assoc 2004;54(2):54-9.
Kayani H, Rehan N, Ullah N. Frequency of retinopathy among
diabetics admitted in a teaching hospital of Lahore. J Ayub Med
Coll Abbottabad 2003;15(4):53-6.
Pardhan S, Gilchrist J, Mahomed I. Impact of age and duration
on sight-threatening retinopathy in South Asians and Caucasians
attending a diabetic clinic. Eye 2004;18(3):233-40.
J Ayub Med Coll Abbottabad 2006;18(3)
Khan AJ. Prevalence of diabetic ret inopathy in Pakistani
subjects. A pilot study. J Pak Med Assoc 1991;41(3):49-50.
Haider Z, Obaidullah S. Clinical diabetes mellitus in Pakistan.
J Trop Med Hyg 1981;84(4):155-8.
Khan AJ. Age sex and duration relationship and prevalence of
diabetic retinopathy in Pakistani population. Pakistan J ophthalmo.
Aziz TM. Incidence of ophthalmic problems in diabetic
patients in Pakistan: A preliminary Report. Ophthalmic practice
Jahangir S. Diabetic retinopathy in Pakistani diabetics.
Pakistan J Ophthalmo. 1989;5:77-79.
Mohammad Z, Khan MD. Incidence of ocular complications of
diabetes mellitus in Pakistan. Pakistan journal of ophthalmology.
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