Abstract
Longitudinal cohort which included 326 institutionalized subjects aged 65 and over. Frailty was defined by the presence of three or more Fried criteria. Frailty state was recorded at baseline, after one year of follow-up and after three years of follow-up. Mean age of the cohort was 83.9with 213 women (65.1%). At baseline, 218 subjects were frail (66.9%). Among these, 39 died after one year of follow-up and 23 subjects had missing data. 138 of the frail subjects remained frail after oneyear of follow-up with 74 remaining frail after three years and 2 subjects improving to non-frail. 18 of the frail subjects at baseline improve to non-frail after one year of follow-up with 7 of them worsening to frail at three-year analysis and 4 remaining non-frail. At baseline, 108 subjects were non-frail (33.1%). Among these, 11 died after oneyear of follow-up and 15 had missing data. 57 of the non-frail subjects remained non-frail after one year of follow-up with 26 remaining non-frail after three years and 13 worsening to frail state. 25 of the non-frail subjects worsened to frail after one year with 10 of them remaining frail at three-year analysis and 7 improving to non-frail. To conclude, frailty is a dynamic state which changes over time. To determine frailty status in institutionalized older adults may help to implement prevention or intervention programs.