Residual congestion at discharge assessed by bioelectrical impedance and its prognostic value in acute heart failure: a multi-centre, prospective registry study.

Although higher haemoglobin levels showed a trend towards a lower OR, statistical significance was not achieved for the 90-day outcome (OR, 0.89; 95% CI, 0.78–1.03 for 90 days; OR, 0.88; 95% CI, 0.79–0.99 for 180 days).

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Although our results were generally robust after accounting for adjusted variables, the aHRs for all-cause mortality in the high-risk group did not reach statistical significance.

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