Short-term and long-term mortality according to underlying aetiologies
| Pathogen | Short-term mortality | Long-term mortality | ||||
| Patients with CAP≥65 years (n=2569) | Patients with NHAP≥65 years (n=518) | p Value | Patients with CAP≥65 years (n=2569) | Patients with NHAP≥65 years (n=518) | p Value | |
| Streptococcus pneumonia, n (%) | 17/244 (7.0) | 8/29 (27.6) | <0.001 | 99/244 (11.9) | 10/29 (34.5) | 0.001 |
| Mycoplasma pneumonia, n (%) | 2/34 (5.9) | 0/0 | NC | 5/34 (14.7) | 0/0 | NC |
| Legionella spp., n (%) | 5/95 (5.3) | 2/12 (16.7) | 0.132 | 13/95 (13.7) | 4/12 (33.3) | 0.079 |
| Haemophilus influenza, n (%) | 1/29 (3.4) | 0/1 (0.0) | 0.850 | 1/29 (3.4) | 0/1 (0.0) | 0.850 |
| Enterobacteriaceae, n (%) | 7/67 (10.4) | 4/11 (36.4) | 0.022 | 11/67 (16.4) | 5/11 (45.5) | 0.027 |
| Pseudomonas spp., n (%) | 2/22 (9.1) | 1/3 (33.3) | 0.225 | 2/22 (9.1) | 1/3 (33.3) | 0.225 |
| Staphylococcus aureus*, n (%) | 2/17 (11.8) | 4/10 (40.0) | 0.088 | 6/17 (35.3) | 8/10 (80.0) | 0.025 |
| Moraxella catarrhalis, n (%) | 1/8 (12.5) | 0/1 (0.0) | 0.708 | 2/8 (25.0) | 1/1 (100.0) | 0.134 |
| Influenza A, n (%) | 5/55 (9.1) | 1/8 (12.5) | 0.759 | 6/55 (10.9) | 2/8 (25.0) | 0.263 |
↵* n=1 accounted for methicillin-resistant S aureus.
CAP, community-acquired pneumonia; NC, not calculable; NHAP, nursing-home-acquired pneumonia.