Gaps in public knowledge of peripheral arterial disease : The first national PAD public awareness survey

• Published in: Circulation (New York, N.Y.) Vol. 116; no. 18; pp. 2086 - 2094
• Main Authors: HIRSCH, Alan T, MURPHY, Timothy P, HOWARD, W. James, SCHROEDER, Paul, CRIQUI, Michael H, LOVELL, Marge B, TWILLMAN, Gwen, TREAT-JACOBSON, Diane, HARWOOD, Eileen M, MOHLER, Emile R, CREAGER, Mark A, HOBSON, Robert W, ROBERTSON, Rose Marie
• Format: Journal Article
• Language: English
• Published: Hagerstown, MD Lippincott Williams & Wilkins 30.10.2007
• Subjects: Adult; Aged; Aged, 80 and over; Awareness; Biological and medical sciences; Blood and lymphatic vessels; Cardiology. Vascular system; Cross-Sectional Studies; Diseases of the peripheral vessels. Diseases of the vena cava. Miscellaneous; Female; General and cellular metabolism. Vitamins; Health Knowledge, Attitudes, Practice; Humans; Male; Medical sciences; Middle Aged; Peripheral Vascular Diseases - epidemiology; Peripheral Vascular Diseases - pathology; Pharmacology. Drug treatments; Risk Factors; Sarcoidosis. Granulomatous diseases of unproved etiology. Connective tissue diseases. Elastic tissue diseases. Vasculitis; United States - epidemiology; United States; Myocardial infarction; Claudication; risk factors; Awareness; Cardiovascular disease; Myocardial disease; peripheral vascular disease; Arterial disease; Prevention; Vascular disease; Heart disease; Risk factor; Occlusive arterial disease
• ISSN: 0009-7322; 1524-4539
• DOI: 10.1161/CIRCULATIONAHA.107.725101

Lower-extremity peripheral arterial disease (PAD) is associated with decreased functional status, diminished quality of life, amputation, myocardial infarction, stroke, and death. Nevertheless, public knowledge of PAD as a morbid and mortal disease has not been previously assessed. We performed a cross-sectional, population-based telephone survey of a nationally representative sample of 2501 adults > or = 50 years of age, with oversampling of blacks and Hispanics. The survey instrument measured the demographic, risk factor, and cardiovascular disease characteristics of the study population; prevalent leg symptoms; PAD awareness relative to atherosclerosis risk factors and other cardiovascular and noncardiovascular diseases; perceived causes of PAD; and perceived systemic and limb consequences of PAD. Respondents were 67.2+/-12.6 years of age with a high prevalence of risk factors but only a modest burden of known coronary or cerebrovascular disease. Twenty-six percent of respondents expressed familiarity with PAD, a rate significantly lower than that for any other cardiovascular disease or atherosclerosis risk factor. Within the "PAD-aware" cohort, knowledge was poor. Half of these individuals were not aware that diabetes and smoking increase the risk for PAD; 1 in 4 knew that PAD is associated with increased risk of heart attack and stroke; and only 14% were aware that PAD could lead to amputation. All knowledge domains were lower in individuals with lower income and education levels. The public is poorly informed about PAD, with major knowledge gaps regarding the definition of PAD, risk factors that lead to PAD, and associated limb symptoms and amputation risk. The public is not aware that PAD imposes a high short-term risk of heart attack, stroke, and death. For the national cardiovascular disease burden to be reduced, public PAD knowledge could be improved by national PAD public education programs designed to reduce critical knowledge gaps.