[Prevalence of cardiovascular diseases and cardiovascular risk factors in older than 65 years persons in an urban area: DERIVA study]. / Prevalencia de enfermedades cardiovasculares y de factores de riesgo cardiovascular en mayores de 65 años de un área urbana: estudio DERIVA.

ABSTRACT

OBJECTIVE: To estimate the prevalence of cardiovascular diseases, cardiovascular risk factors, and the psychosocial characteristics associated with them in an urban population aged 65 years and older. DESIGN: Descriptive cross-sectional study of the population. SETTING: City of Salamanca (Spain). PARTICIPANTS: A total of 480 participants aged 65 and older were selected using a stratified randomized sampling method. A health questionnaire was completed in the participants' homes. MAIN MEASUREMENTS Weight, height, waist circumference, arterial pressure, blood glucose and cholesterol, were measured, and the standardized prevalence for a European population was estimated. RESULTS: A total of 327 participants were interviewed (68.10% of those selected), mean age of participants was 76 (SD 7.33). Of the total, 64.5% were women and 20.2% (15.8-24.5) had some cardiovascular disease. In males, the most prevalent cardiovascular disease was ischemic heart disease (12.1% [6.1-18]), while in females it was heart failure (10.4% [6.3-14.6]). Hypertension was the most frequent cardiovascular risk factor for males (63.8% [53.2-70.9]) and females (69.7%.[63.5-75.9]), followed by diabetes in males (36.2% [27.5-45]), and sedentary lifestyle in females (36.0% [29.5-42.5]). Those with cardiovascular diseases were more dependent and had a worse prognosis (Charlson's Comorbility Index). CONCLUSIONS: Ischemic heart disease is the most prevalent heart disease in males, while heart failure is the most prevalent disease for females. Almost 80% of the population aged 65 and older did not suffer any of the three cardiovascular diseases that are the main causes of mortality in this group of age. Participants who had a CVD were more dependent for activities of daily living.