Length of stay and prior heart failure admission in frailty and heart failure: A systematic review and meta-analysis.

and Vidan et al., where the mean age difference was around 3 years, showed an 8%–10% difference in re‐hospitalization among frail and non‐frail patients that did not reach statistical significance. 24 , 28 In our sub‐analysis accounting for age, the association between frailty and HHF was attenuated and did not reach statistical significance (OR: 1.28; 95% CI: 0.91–1.82; I 2 = 64%; P = 0.16).

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