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Title

Single-Field Fundus Photography for Screening of Diabetic Retinopathy: The Prevalence and Associated Factors in a Population-Based Study.

Authors

Soleimani, Mohammadreza; Alipour, Fateme; Taghavi, Yousef; Fatemipour, Marjan; Hakimi, Hamid; Jamali, Zahra; Khalili, Parvin; Ayoobi, Fatemeh; Sheikh, Maryam; Tavakoli, Roya; Zand, Amin

Abstract

Introduction: We aimed to determine the prevalence and risk factors for diabetic retinopathy (DR) in a multi-primary healthcare facilities-based DR screening project by analyzing single-field fundus photographs among patients with diabetes in Rafsanjan City, Iran, based on the Rafsanjan Cohort Study, as a part of the prospective epidemiological research studies in IrAN (PERSIAN). Methods: Of all participants in the Rafsanjan Cohort Study (performed in four primary healthcare facilities across Rafsanjan City from August 2015 to December 2017), patients with diabetes were recruited in this study. All participants underwent a standardized interview and clinical and paraclinical examinations for demographic characteristics, and medical conditions according to the PERSIAN's protocols. In addition, digital fovea-centered and single-field fundus photography was performed for DR identification and grading. For assessment of agreement, a subgroup of participants underwent fundus examination, randomly. DR was graded as nonproliferative (NPDR) or proliferative (PDR). Results: Of 8414 screened participants, 1889 had diabetes. The total prevalence of DR was 6.93% [131 individuals including 110 (5.82%) with NPDR, and 21 (1.11%) with PDR] based on single-field fundus photographs, with almost perfect agreement with fundus examinations (κ = 0.82). On adjusted multivariate analysis, duration of diabetes (OR 1.16, 95% CI 1.13–1.19), positive family history for diabetes (OR 1.73, 95% CI 1.09–2.75), fasting plasma glucose (FPG) ≥ 126 mg/dL (OR 1.98, 95% CI 1.16–3.39), and serum creatinine level (OR 1.79, 95% CI 1.08–2.98) were associated with DR. Factors including age, education level, physical activity, body mass index, hypertension, and cardiovascular and renal diseases did not have association with DR on adjusted multivariate analysis. Conclusions: Single-field fundus photography can be used for screening of DR in primary healthcare facilities. In individuals with diabetes, duration of diabetes, positive family history for diabetes, FPG ≥ 126 mg/dL, and serum creatinine level may be associated with DR.

Subjects

IRAN; DIABETIC retinopathy; MEDICAL screening; HEALTH facilities; BODY mass index; BLOOD sugar

Publication

Diabetes Therapy, 2023, Vol 14, Issue 1, p205

ISSN

1869-6953

Publication type

Academic Journal

DOI

10.1007/s13300-022-01348-3

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