Table 1.
Characteristics of patients with aspiration and non-aspiration pneumonia
| Total | Aspiration pneumonia | Non-aspiration pneumonia | p-value | |
|---|---|---|---|---|
| Number of patients | 1,042 (100) | 148 (14.2) | 894 (85.8) | - |
| Age (yr) 65.3±18.8 | 65.3±18.8 | 73.8±16.7 | 63.9±18.7 | <0.001 |
| Sex, male | 572 (54.9) | 102 (68.9) | 470 (54.6) | <0.001 |
| Intensive care unit admission 127 (12.2) | 127 (12.2) | 39 (26.3) | 88 (9.8) | <0.001 |
| CURB-65 scorea) | 1 (0–2) | 3 (2–3) | 1 (0–2) | <0.001 |
| Confusion | 65 (7.3) | 15 (33.3) | 50 (5.9) | <0.001 |
| Urea (mmol/L) | 15 (10–22) | 28 (21–37) | 14 (10–21) | <0.001 |
| Respiratory rate (breaths/min) | 19 (18–22) | 22 (18–24) | 19 (18–22) | 0.011 |
| Blood pressure (mmHg) | 130 (115–149) | 117 (102–135) | 131 (116–149) | 0.007 |
| Length of stay (day) | 3 (1–10) | 9 (2–15) | 2 (1–9) | <0.001 |
Values are presented as number (%) or mean±standard deviation or median (interquartile range, 25th–75th percentile).
a)
CURB-65 is a community-acquired pneumonia severity score based on confusion, urea (>7 mmol/L), respiratory rate (≥30/min), blood pressure (systolic blood pressure <90 mmHg or diastolic blood pressure ≤60 mmHg), and age (≥65 years). The scores were defined as ‘low’ for CURB-65 total scores of 0–1 point, as ‘moderate’ for scores of 2 points, and as ‘high’ for scores of 3–5 points.