There are few data on comorbid conditions, but there are some conditions that arise in the same circumstances in which RAD arises, such as institutionalization or maltreatment.
Altogether, functional decline is a common problem that is significantly associated with negative outcomes such as institutionalization, re-hospitalization and subsequent mortality [ 3].
Our previous research has found that older patients may not be willing to divulge information to health care professionals about their dietary behaviours or social risk factors that impact on nutritional status due to fear of potential negative consequences, such as institutionalization and loss of independence [ 30].
At an early period (such as 2002 2003), institutionalization was in process and things were unclear to most people at that time; the year 2005 saw split-share reform, which greatly changed the properties of companies and their interrelations.
Physical performance tests provide a marker of current health and predict subsequent health outcomes, such as disability, institutionalization and mortality in older populations [ 3].
Concurrent and predictive validity were mainly assessed using outcomes such as mortality, institutionalization, activities of daily living (ADL) disability, hospitalization, and quality of life.
Considerable progress had been made already in both horizontal scale up (geographic expansion) and vertical scale up (institutionalization, such as, inclusion in norms, training, supervision, procurement, and reporting systems).
The scores of QoL are lower than American scores, except for the physical scale (PF) [ 15], which could be due to outcomes such as falls, institutionalization, and death [ 38, 39].
Prior studies have also demonstrated that studies utilizing administrative datasets with direct measures of functional status can significantly add to statistical models predicting outcomes such as death, institutionalization, or hospitalization [ 19].
