[Anemia and frailty in older adults from Spain. The FRADEA Study]. / Anemia y fragilidad en ancianos españoles. Estudio FRADEA.

INTRODUCTION: The objective was to examine the prevalence of anemia according to the state of frailty and to analyze the relationship between anemia, hemoglobin concentration and frailty in a cohort of Spanish older adults. MATERIAL AND METHODS: Cross-sectional substudy of the FRADEA (Frailty and Dependency in Albacete) cohort, a population-based concurrent cohort study conducted in people older than 69 years of Albacete (Spain). Of the 993 participants included in the first wave, 790 were selected with valid data on anemia and frailty. Anemia was defined according to the criteria of the World Health Organization (hemoglobin less than 13 g/dL in men and 12 g/dL in women). Frailty was assessed using the Fried's phenotype. The association between anemia, hemoglobin concentration and frailty was determined by binary logistic regression adjusted for age, sex, educational level, institutionalization, comorbidity, cognitive status, body mass index, polypharmacy, creatinine, glucose and total white blood cell count. RESULTS: The mean age was 79 years. The prevalence of anemia was 19.6%. The prevalence of anemia was significantly higher in frail subjects (29.6%) compared to prefrail (16.6%) and robust ones (6%), p<0.001. The average hemoglobin concentrations were significantly lower in frail (12.7 g/dL), compared to the prefrail (13.5 g/dL) and robust participants (14.4 g/dL), p < 0.001. In the fully adjusted regression model, anemia was associated with frailty (OR 1.95; 95% CI: 1.02-3.73, p<0.05), and similarly, the average hemoglobin concentrations showed a significant association with frailty (OR 0.79; 95% CI: 0.66-0.96, p < 0.05). CONCLUSION: Anemia in older adults, defined according to WHO criteria, is independently associated with frailty.

Fragilidad y dependencia en Albacete (estudio FRADEA): razonamiento, diseño y metodología / Frailty and dependence in Albacete (FRADEA study): reasoning, design and methodology

Objetivo. Obtener una cohorte de sujetos con edad igual o mayor a 70 años, representativa de una población urbana española, para estimar la prevalencia de fragilidad y seguirla en el tiempo para analizar factores asociados. Material y métodos. Estudio de cohortes concurrente de base poblacional. Sobre un universo de 18.137 ancianos, se realizó un muestreo aleatorio estratificado para obtener una muestra representativa de 1.172. Aceptaron participar 993 personas (84,7%). Se recogieron variables sociodemográficas, de comorbilidad, funcionales (n=825), cognitivas, afectivas y de calidad de vida. A los sujetos que aceptaron se les determinó la composición corporal por bioimpedanciometría (n=557), el gasto energético basal por calorimetría indirecta (n=450) y se obtuvo muestra de sangre para la determinación de biomarcadores (n=859). La fragilidad se definió por la presencia de 3 o más de los criterios Fried: pérdida de peso no intencionada, baja fuerza, cansancio, lentitud al caminar y baja actividad física. La cohorte será seguida en el tiempo hasta el fallecimiento de los sujetos. Resultados. Edad media±desviación estándar 79,4±6,4 años, con 601 (60,5%) mujeres. Institucionalizados el 21,3%. Fueron frágiles el 16,9%, prefrágiles 48,5%, no frágiles 21,8%, y no se dispuso de 3 criterios para poder determinar su estado en el 12,8%, de los cuales el 9,5% tenía una discapacidad moderada-severa, por lo que la prevalencia de fragilidad podría aumentar hasta el 26,4%. Conclusiones. Se ha construido la cohorte FRADEA, representativa de los mayores de una población urbana de España. La prevalencia de fragilidad en la cohorte fue del 16,9%(AU)

Objective. To obtain a cohort of subjects of equal to or greater than 70 years, representative of a Spanish urban population, to estimate the prevalence of frailty and follow it up over time to analyse associated factors. Material and methods. A prospective, population-based cohort study. From a population of 18,137 elderly persons, a representative sample of 1172 was randomly stratified, of which 993 (84.7%) agreed to take part. The variables collected were; sociodemographic, comorbidity, functional (n=825), cognitive, affective and quality of life. On the patients who agreed, body composition was determined by bioimpedance analysis (n=557), basal metabolic rate by indirect calorimetry (n=450) and a blood sample was obtained for biomarkers (n=859). Frailty was defined by the presence of 3 or more Fried criteria: unintentional weight loss, low energy, exhaustion, slow walking, and low physical activity. The cohort will be followed up over time until the death of the subjects. Results. Mean age 79.4 (SD 6.4) years, with 601 (60.5%) women. A total of 21.3% were institutionalised; 16.9% were frail, 48.5% pre-frail, 21.3% non-frail, and 12.8% did not have the 3 criteria to be able to determine their state, of which 9.5% had moderate-severe incapacity, which would increase the prevalence of frailty to 26.4%. Conclusions. A FRADEA cohort has been constructed, representative of an urban population in Spain. The prevalence of frailty in the cohort was 16.9%(AU)

[Frailty and dependence in Albacete (FRADEA study): reasoning, design and methodology]. / Fragilidad y dependencia en Albacete (estudio FRADEA): razonamiento, diseño y metodología.

OBJECTIVE: To obtain a cohort of subjects of equal to or greater than 70 years, representative of a Spanish urban population, to estimate the prevalence of frailty and follow it up over time to analyse associated factors. MATERIAL AND METHODS: A prospective, population-based cohort study. From a population of 18,137 elderly persons, a representative sample of 1172 was randomly stratified, of which 993 (84.7%) agreed to take part. The variables collected were; sociodemographic, comorbidity, functional (n=825), cognitive, affective and quality of life. On the patients who agreed, body composition was determined by bioimpedance analysis (n=557), basal metabolic rate by indirect calorimetry (n=450) and a blood sample was obtained for biomarkers (n=859). Frailty was defined by the presence of 3 or more Fried criteria: unintentional weight loss, low energy, exhaustion, slow walking, and low physical activity. The cohort will be followed up over time until the death of the subjects. RESULTS: Mean age 79.4 (SD 6.4) years, with 601 (60.5%) women. A total of 21.3% were institutionalised; 16.9% were frail, 48.5% pre-frail, 21.3% non-frail, and 12.8% did not have the 3 criteria to be able to determine their state, of which 9.5% had moderate-severe incapacity, which would increase the prevalence of frailty to 26.4%. CONCLUSIONS: A FRADEA cohort has been constructed, representative of an urban population in Spain. The prevalence of frailty in the cohort was 16.9%.