Creating a Frailty Index for Older Adults
Author Information
Author(s): Searle Samuel D, Mitnitski Arnold, Gahbauer Evelyne A, Gill Thomas M, Rockwood Kenneth
Primary Institution: Dalhousie University & Capital District Health Authority
Hypothesis
A standard procedure for constructing a frailty index can be systematically described.
Conclusion
The study presents a reproducible method for creating a frailty index that relates deficit accumulation to mortality risk in older adults.
Supporting Evidence
- The frailty index was constructed using 40 health variables.
- The study found that the rate of deficit accumulation increased with age.
- The frailty index was shown to be a significant predictor of mortality.
Takeaway
This study shows how to measure frailty in older people by counting health problems, which helps us understand their health risks better.
Methodology
Secondary analysis of the Yale Precipitating Events Project cohort study with health variables assessed at baseline and follow-up.
Potential Biases
Potential bias due to the non-random selection of variables for the frailty index.
Limitations
The sample size is small, and not all items had established cut-points.
Participant Demographics
Participants were community-dwelling, English-speaking, non-disabled individuals aged 70 years or older, predominantly white and female.
Statistical Information
P-Value
0.020
Confidence Interval
0.014–0.026
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website