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Figure 1 Cumulative probability of death in relation to the level of N-terminal pro-brain natriuretic peptide (NT-proBNP) and treatment strategy in (A) all patients, (B) patients with interleukin-6 (IL-6) <5 ng/l, and (C) patients with IL-6 5 ng/l. 1) First or second tertile of NT-proBNP plus non-invasive strategy; 2) first or second tertile of NT-proBNP plus invasive strategy; 3) third tertile of NT-proBNP plus non-invasive strategy; 4) third tertile of NT-proBNP plus invasive strategy—whole group: n = 655, 691, 353, and 320; IL-6 <5 ng/l group: n = 520, 540, 190, and 187; IL-6 5 ng/l group: n = 122, 140, 156, and 129, respectively.