de van der Schueren MAE, et al. – The association between weight loss and one–year mortality was assessed in hospitalized patients, stratified by BMI and FFMI subgroups. Compared to patients with no critical weight loss, patients with critical weight loss had a higher one–year mortality. As normal weight patients with normal FFMI had lower mortality rates than their counterparts with low FFMI, FFMI appeared to play a crucial role in this association.