Heleen M. Evenhuis, Heidi Hermans, Thessa I. M. Hilgenkamp, Luc P. Bastiaanse, Michael A. Echteld
Objectives: To obtain first insight into prevalence and correlates of frailty in older people with intellectual disability (ID).
Design: Population-based cross-sectional study in persons using formal ID services.
Setting: Three Dutch care provider services.
Participants: Eight hundred forty-eight individuals with borderline to profound ID aged 50 and older participating in the Healthy Ageing and Intellectual Disability (HA-ID) Study.
Measurements: All participants underwent an extensive health examination. Frailty was diagnosed according to Cardiovascular Health Study criteria. Associations between frailty and participant characteristics were investigated using multivariate logistic regression analysis.
Results: Prevalence of frailty was 11% at age 50 to 64 and 18% at age 65 and older. Age, Down syndrome, dementia, motor disability, and severe ID were significantly associated with frailty, but only motor disability had a unique association with frailty. In a regression model with these variables, 25% of the variance of frailty was explained.
Conclusion: At age 50 to 64, prevalence of frailty is as high as in the general population aged 65 and older (7�9%), with a further increase after the age of 65. Motor disability only partially explains frailty. Future studies should address health outcomes, causes, and prevention of frailty in this population.
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