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. 2020 Mar 13;20:102. doi: 10.1186/s12877-020-1500-9

Fig. 1.

Fig. 1

Frequency histogram for the distribution of Clinical Frailty Scale scores (range 1–9) in the study population. Appended table shows the mean age, GRACE 12-month mortality risk estimation, Charlson comorbidity index and Karnofsky scale score in the study sample with each CFS score. By ANOVA, each of these measures demonstrated a significant change with increasing CFS scores (all p < 0.001)