© American Diabetes Association ®, Inc., 2003
Familial Clustering of Diabetic Nephropathy: Perceptions and Risk Recognition Among Mexican-American Patients With a Family History of DiabetesAddress correspondence and reprint requests to Nedal Arar, PhD, Assistant Professor, Department of Medicine/Nephrology, University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Dr., San Antonio, TX 78229-3900, or e-mail him at ararn{at}uthscsa.edu. Abstract Objective. Diabetic nephropathy (DN) clusters in families with type 2 diabetes, suggesting a genetic susceptibility for its development and progression. We investigated DN probands and relatives: 1) perceptions of the causes and clustering of DN and 2) recognition of their genetic susceptibility and of other selected risk factors. Research methods. Structured interviews were conducted with 246 Mexican-American participants in the Family Investigation of Nephropathy and Diabetes (FIND) study using the Contextual Assessment Approach Questionnaire (CAA-Q). A total of 105 (43%) DN probands and 141 (57%) first-degree relatives were enrolled. Subjects averaged 56 years of age (range: 3376; SD: 9.04); 62% were females. Data analysis included both qualitative and quantitative methods using Atlas.ti and SPSS 9.0 software packages.
Results. Eighty-three percent of subjects recognized that type 2 diabetes clusters in their family, while 63% asserted that DN did not. Fifty-three percent of diabetic relatives presented with a high urinary albumin/creatinine ratio ( Conclusion. Participants viewed type 2 diabetes and DN in the context of health behaviors related to their everyday activities. They considered DN to be part of diabetes with no direct genetic predisposition and not a separate entity. Diabetic relatives under-estimated their risks for developing DN and were not engaged in preventive measures to reduce these risks. We recommend that health professionals consider these findings when interacting with high-risk diabetic patients. DN is a serious complication of diabetes that requires special care, education, prevention, and management.
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