HSPA9 and susceptibility to pneumonia measurement: Patients with CXR-confirmed pneumonia were more likely to have severe pneumonia (33.3% vs. 21.1%, p<0.01), to have pneumococcal bacteremia (11.0% vs. 0.5%, p<0.01) and to have CRP≥40 mg/L (86.4% vs. 44.6%, p<0.01) than those without.