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Introduction: The purpose of this study was to evaluate, with classification-regression tree analysis, the structure of the associations between nutritional and health care services and the cumulative prevalence of the classical cardiovascular disease (CVD) risk factors of older individuals living in Greek islands and Cyprus. Methods: During 2005-2009, 744 men and 742 women (>65 years) from nine Greek islands and Cyprus Republic were voluntarily enrolled in the Mediterranean Islands study; various socio-demographic, clinical and lifestyle characteristics were recorded. Moreover, information regarding practising dieticians ( n = 88) and nutritional services provided in these islands was also recorded. Results: Both medical and nutrition services act more effectively to elders' cardiovascular health. For example, older individuals living in areas with nutritional services' support for at least five years, with collaboration between dieticians and physicians, reduced the CVD risk factors (CVD RF) burden by 42%. Whereas, in areas with dietetic support less than five years, but more than two, the presence of advanced health care system seemed to control the CVD RF burden to the population average. Conclusions: Despite the fact that the present work shares some limitations mainly because of its cross-sectional design, the classification and regression tree approach has clearly demonstrated the interrelation between nutritional services and the health care system towards achieving benefits among the elders' quality of life. [ABSTRACT FROM AUTHOR]

Background: The aim of the present work was to evaluate the relationships between sociodemographic, clinical, lifestyle and psychological characteristics and the presence of obesity, among elderly individuals without known cardiovascular disease. Methods: During 2005-2007, 553 elderly men and 637 elderly women (mean age 74±7 years) from eight Mediterranean Islands in Greece and Cyprus were enrolled. The retrieved information included demographic, bio-clinical and dietary characteristics. The MedDietScore assessed adherence to the Mediterranean dietary pattern. Results: The prevalence of obesity was 27% in males and 41% in females (P <0.001), while 48% of males and 39% of females were overweight. The prevalence of diabetes, hypercholesterolemia and hypertension was higher in the obese elderly than in the overweight or normal (P <0.001). After adjusting for various confounders, one unit increase in the MedDietScore was associated with 88% (P =0.07) lower likelihood of being obese; similarly, physical activity was associated with 81% lower likelihood of obesity (P <0.001). Conclusions: Roughly seven out of 10 of our elderly were overweight or obese, while the majority of them presented other co-morbidities, too. Greater adherence to the Mediterranean diet may reduce the burden of obesity among elderly individuals. [ABSTRACT FROM AUTHOR]