Development and validation of a frailty index based on data routinely collected across multiple domains in NSW hospitals.
Sarita Y LoMeggie ZhangRuth E HubbardDanijela GnjidicMitchell R RedstonSarah Nicole HilmerPublished in: Australasian journal on ageing (2020)
This multi-domain FI is comparable to REFS, with adequate redundancy to exclude deficits for specific analyses.