Table 1.
Characteristics of elderly patients with CAP
| Patient characteristics | Number of patients (%) | P-value | |
|---|---|---|---|
| P. aeruginosa group (n = 81) | Non-P. aeruginosa group (n = 104) | ||
| Male | 50 (61.73) | 58 (55.77) | 0.415 |
| Severe CAP | 55 (67.90) | 32 (30.77) | 0.000 |
| Chronic obstructive pulmonary diseases | 28 (34.57) | 25 (24.04) | 0.116 |
| Bronchiectasis | 14 (17.28) | 5 (4.81) | 0.007 |
| Chronic respiratory diseases (atelectasis, lung fibrosis, and lung bleb) | 26 (32.10) | 12 (11.54) | 0.001 |
| Tracheostomy before hospitalization | 12 (14.81) | 2 (1.92) | 0.001 |
| Nasogastric tube feeding prior to admission | 18 (22.22) | 1 (0.96) | 0.000 |
| Taking inhaled corticosteroids before hospitalization | 21 (25.93) | 17 (16.35) | 0.142 |
| Receiving intravenous antimicrobials within the past 3 months | 29 (35.80) | 15 (14.42) | 0.001 |
| History of hospitalization within the previous 3 months | 40 (49.38) | 25 (24.04) | 0.001 |
| Use of a ventilator within the past 3 months | 13 (16.05) | 5 (1.81) | 0.013 |
| Receiving proton pump inhibitors before hospitalization | 13 (16.05) | 21 (20.19) | 0.567 |
| Malnutrition | 26 (32.10) | 20 (19.23) | 0.059 |
| Bedridden status | 21 (25.93) | 16 (15.38) | 0.095 |
| Chronic heart failure | 5 (6.17) | 9 (8.65) | 0.587 |
| Cerebrovascular diseases | 19 (23.46) | 19 (18.27) | 0.464 |
| Chronic neurological disorders | 15 (18.52) | 16 (15.38) | 0.692 |
| Chronic kidney diseases (GFR < 35 mL/min/1.73 m2) | 8 (9.88) | 15 (14.42) | 0.380 |
| Diabetes mellitus type 2 | 26 (32.10) | 31 (29.81) | 0.738 |
| Immunocompromised status | 21 (25.93) | 8 (7.69) | 0.001 |
| Alcohol drinking | 1 (1.23) | 7 (6.73) | 0.081 |
| Smoking | 6 (7.41) | 9 (8.65) | 0.794 |