Fig. 1From: Six underlying health conditions strongly influence mortality based on pneumonia severity in an ageing population of Japan: a prospective cohort studyEnrolment and investigation flow. Enrolment and investigation flow after patients with no chest X ray (CXR) taken and no infiltrate on CXR were excluded, 1772 patients were eligible for the analysis, and 140 patients (7.9%) died within 30Â daysBack to article page