Survival Prognosis in Very Old Adults

Area of Science:

• Gerontology
• Public Health
• Clinical Medicine

Background:

• Assessing long-term survival prognosis in very old adults is crucial for clinical decision-making.
• Simple functional indicators may offer a practical approach to predicting survival in this demographic.

Purpose of the Study:

• To investigate if basic functional indicators predict survival in individuals aged 92-93.
• To evaluate the combined predictive power of physical and cognitive function on longevity.

Main Methods:

• A cohort of 2,262 very old adults (born 1905) in Denmark participated in an in-person survey in 1998.
• Survival was assessed over a 15-year follow-up period, analyzing factors including activities of daily living, physical performance, and cognition.
• The Mini-Mental State Examination (MMSE) and chair stand test were key functional assessments.

Main Results:

• Men aged 92-93 had a 6.0% chance of reaching 100 years, while women had an 11.4% chance.
• The ability to rise from a chair without using hands significantly increased survival chances for both men (11.2%) and women (22.0%).
• Combining the chair stand test with high MMSE scores (28-30) further elevated survival chances to 21.7% for men and 34.2% for women.

Conclusions:

• The chair stand test and MMSE score together offer a simple, rapid method for estimating survival in the very old.
• This combined assessment is particularly valuable for guiding treatment decisions, especially concerning non-acute conditions with potential side effects.