Baseline characteristics according to onset-to-hospitalization (OH) time.

Abbreviations: SBP; systolic blood pressure, DBP; diastolic blood pressure, TIA; transient ischemic attack, COPD; chronic obstructive pulmonary disease, EF; ejection fraction, eGFR; estimated glomerular filtration rate, BNP; B-type natriuretic peptide; Data are presented as mean ± standard deviation, median (interquartile range), or percentage, as appropriate.* Pulmonary congestion is defined as presenting with rales in >50% of each lung or pulmonary edema on chest X-ray according to Killip classification.† Assisted ventilation includes both endotracheal and non-invasive mechanical ventilation.Baseline characteristics according to onset-to-hospitalization (OH) time.