R ecognizing the considerable excess burden of both cerebrovascular disease and LEAD suffered by individuals with IDDM or NIDDM (1,2), a workshop was convened to 1) provide a current review of the knowledge pertaining to the prevalence, incidence, and risk factor associations of cerebrovascular disease and PVD in diabetes, and 2) review and make recommendations about the methodology for identifying and quantifying LEAD in both clinical and research settings.The workshop focused on the specific problems of measurement of PVD in diabetes and the need for a standard approach to ensure appropriate care and facilitate comparability of research findings across studies and over time. Recommendations for the measurement of LEAD in a primary-care setting and for epidemiological studies were developed, along with recommendations for more detailed assessment after referral to a vascular clinic. Specific recommendations for the assessment of cerebrovascular disease were not addressed.