Article

Understanding the hierarchy of higher-level physical functions to infer
disability level (mild, moderate or severe) is essential for the precise
targeting of preventive interventions and has been examined previously in a
cross-sectional study. Based on longitudinal data, this study evaluated the
hierarchy of higher-level physical functions. METHODS: Data from a cohort of 2729
community-dwelling persons aged over 50 with no initial disability were drawn
from the "Survey of Health and Living Status of the Elderly in Taiwan" from 1996
through 2007. The three-level hierarchy of eight chosen activities was examined
by the median ages to disability onset with survival analyses and by Cox
regressions, which examined the effects of sex and age on the development of this
hierarchy. RESULTS: The progression of incident disability was as follows: mild
level-running, carrying weight, and squatting; moderate level-climbing stairs,
walking, and standing; and severe level-grasping and raising arms up. Women and
older persons were at greater risk of developing more severe levels of
disability. Another Cox regression with one index activity from each hierarchical
level revealed similar results. CONCLUSIONS: The three-level hierarchy of
higher-level physical functions has been validated longitudinally, suggesting
rich research and clinical implications.

Langue : ANGLAIS