Prognostic value of the Surprise Question for one-year mortality in older patients: a prospective multicenter study in acute geriatric and cardiology units

Objectives To determine the prognostic value of the Surprise Question (SQ) in older persons. Methods A multicenter prospective study, including patients aged 75 years or older admitted to acute geriatric (AGU) or cardiology unit (CU). The SQ was answered by the treating physician. Patients or relatives were contacted after 1 year to determine 1-year survival. Logistic regression was used to explore parameters associated with SQ. Summary ROC curves were constructed to obtain the pooled values of sensitivity and specificity based on a bivariate model. Results The SQ was positive (death within 1 year is no surprise) in 34.7% AGU and 33.3% CU patients (p = 0.773). Parameters associated with a positive SQ were more severe comorbidity, worse functionality, significant weight loss, refractory symptoms and the request for palliative care by patient or family. One-year mortality was, respectively, 24.9% and 20.2% for patients hospitalized on AGU and CU (p = 0.319). There was no difference in sensitivity or specificity, respectively, 64% and 77% (AUC 0.635) for AGU versus 63% and 76% (AUC 0.758) for CU (p = 0.870). A positive SQ is associated with a significant shorter time until death (HR 5.425 (95% CI 3.332-8.834), p < 0.001) independently from the ward. Conclusion The Surprise Question is moderately accurate to predict 1-year mortality in older persons hospitalized on acute geriatric and cardiologic units.