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Risk of late (>30 days after TAVI) mortality amongst frail patients. Summary meta-estimates presented grouped by type of frailty assessment used (subjective vs. objective), adjustment for confounders (unadjusted vs. adjusted) and study quality with regard to frailty reporting (high vs. low). All summary meta-estimate calculations based on random-effects model analysis. Individual study level data are presented in Supplementary material online, Figure S1.
