Abstract
As physicians in the 21st century, our approach to the care of intensive care unit (ICU) patients will be shaped dramatically by the most striking demographic population shift of modern time, termed the ‘geriatric demographic imperative’. Many intensivists are already familiar with the ‘graying of the ICU’, which results from the fact that adults over 85 years old are the most rapidly growing segment of our population (Fig. 1). While the ‘oldest old’ (>85 years) are currently estimated at 4 million, this number is expected to double in the U.S. by the year 2030 (accounting for more than one-fifth of the entire population) [1], and by the year 2050 there will be an estimated 15.3 miUion persons in this age group [2] More than half of all ICU days are incurred by those over 65 years old, and the number of days per year spent in the ICU (per 1000 person-years) is 7-fold higher above age 75 as compared to those less than 65 [3]. Among people older than 65, over 10% have chronic lung disease [4] and these people are at particularly high risk for experiencing serious health complications [5]. The rate of hospitalization for pneumonia in the subgroup of elderly who have chronic lung disease, for example, is 2 to 7 times higher than for their counterparts without coexistent pulmonary disease [6].
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Ely, E. (2003). Understanding Outcomes of Critically III Older Patients. In: Angus, D.C., Carlet, J. (eds) Surviving Intensive Care. Update in Intensive Care Medicine, vol 39. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-55733-0_7
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