Association between IADL and physical, mental, and cognitive functions among the elderly living in nursing homes

Abstract

This study aims to clarify the effects that the physical, mental, and cognitive functions have on the Instrument Activity of Daily Living (IADL) of the elderly living in nursing homes, using the covariance structure analysis. The conformity degree of the model was found to be CFI=0.969, TLI=0.955, RMSEA=0.059, SRMR=0.054. Physical and cognitive functions decreased with aging. The physical function was related to the IADL,and the cognitive function was related to the IADL through the physical function. It suggests that to aim for the maintenance and improvement of the IADL, it is important to improve not only the physical functions but also the cognitive functions of the elderly.