Fig. 4From: The hanging chin sign as a mortality predictor in geriatric patients at the emergency department: a retrospective cohort studyKaplan-Meier plot of estimated survival in patients with. A. Hanging chin sign vs. no hanging chin sign, B. PA-view vs. AP-view, C. Lateral view present vs. lateral view absent, D. 90-day mortality risk according the APOP study, high risk vs. low risk. Abbreviations: PA posteroanterior, AP anteroposterior, APOP acute presenting older patient [8]Back to article page