Mortality in the very old is rapidly declining in many countries, but development and change in health and functioning in this age group is poorly understood. In the Vitality 901 Study, we investigated functional status, multimorbidity, and self-rated health (SRH) in nonagenarians in 2001, 2003, 2007, and 2010 in one geographic area of Finland. At each time, all inhabitants aged 90 years and older were included, and the response rate was high. We found minor improvement over time in independence in performing activities of daily living (ADL), no change in mobility or chronic conditions, and declining SRH. During the study period, both survival until the age of 90 years and the life expectancy at the age of 90 years clearly increased. Longer lives in very old age are likely to include both healthy and disabled years, and the number of those in need of help will grow. Studies of the oldest old are challenging because of poor health, cognitive problems, and a high rate of institutionalization; but more information on their health trends is urgently needed.
ANNUAL REVIEW OF GERONTOLOGY AND GERIATRICS