Fig. 2
From: Frailty and pre-frailty in cardiac surgery: a systematic review and meta-analysis of 66,448 patients
Forest Plot for adjusted operative mortality. Individual study and pooled adjusted odds ratios (ORs) of frail vs non-frail patients undergoing primarily CABG and valve surgery. The pooled RR and OR with 95% CI were calculated using random-effects models. Sensitivity analyses – Adjusted risk of operative mortality is also higher if study with largest weighting [14] is excluded: adjusted OR 1.72, 95% CI 1.08–2.75, p = 0.02, I2 = 0%