Chronic kidney disease (CKD) is a leading risk factor for cardiovascular and all-cause mortality among the elderly. Mecklenburg-Western Pomerania has the largest prevalence of CKD in Germany and Europe. The CKD impact in primary care strategies to reduce frailty syndrome in the elderly is unknown. For this purpose, about 820 elderly participants will be included in an observational study (MV-FIT), who will undergo an multi-factorial geriatric assessment, monitoring \& management program, specifically designed to avoid frailty. The goal of the full-scale study is to evaluate the impact of CKD in multi-component primary care strategies to reduce frailty among elderly persons in rural Mecklenburg-Western Pomerania. MV-FIT will be conducted on individuals in rural Mecklenburg-Western Pomerania, who will be observed over a period of 3 years. The Study of Health in Pomerania (SHIP) is a population-based epidemiological, two independent-cohort, study (SHIP and SHIP-TREND). SHIP cohorts have been followed for \>24 years. SHIP/SHIP TEND participants \>60 years or older will studied by a follow-up survey. The aim is to gain new insights into the development of frailty and to develop strategies for keeping those affected healthy.