Figure 2From: Derivation of a frailty index from the interRAI acute care instrumentFrailty index-acute care versus age plot. Legend: Average FI-AC (blue) and the 99th percentile (red) are shown against age. Best fit regression lines are overlaid to illustrate no accumulation of deficits in the 99th percentile (red) and 0.5% deficit accumulation per year in the average FI-AC (blue).Back to article page