Table 1. Clinical characteristic comparisons between patients with or without pulmonary abscess.
| Variables | Patients with pulmonary abscess (N = 190) |
Patients without pulmonary abscess (N = 12,174) |
P |
|---|---|---|---|
| Age, years, M ± SD | 60.1 ± 15.2 | 63.7 ± 15.9 | <0.01 |
| Sex, N (%) | |||
| Male | 142 (74.7%) | 7,775 (63.9%) | <0.01 |
| Female | 48 (25.3%) | 4,399 (36.1%) | |
| Baseline medical conditions, N (%) | |||
| Yes | 114 (60.0%) | 8,260 (67.9%) | 0.02 |
| Underlying extrapulmonary disease, N (%) | |||
| Yes | 83 (43.7%) | 6,131 (50.4%) | 0.07 |
| Diabetes | 49 (25.8%) | 1,919 (15.8%) | <0.01 |
| Coronary artery disease | 16 (8.4%) | 2,135 (17.5%) | <0.01 |
| Hypertension | 50 (26.3%) | 4,101 (33.7%) | 0.03 |
| Cerebrovascular disease | 17 (8.9%) | 1,735 (14.3%) | 0.04 |
| Baseline pulmonary disease, N (%) | |||
| Yes | 44 (23.2%) | 4,403 (36.2%) | <0.01 |
| Bronchiectasis | 28 (14.7%) | 1,802 (14.8%) | 0.98 |
| Asthma | 7 (3.7%) | 1,091 (9.0%) | 0.01 |
| COPD | 26 (13.7%) | 2,883 (23.7%) | <0.01 |
| Clinical symptoms, N (%) | |||
| Respiratory failure/hypoxemia | 68 (35.8%) | 4,931 (40.5%) | 0.19 |
| Laboratory tests, N (%) | |||
| Renal insufficiency | 6 (3.2%) | 712 (5.8%) | 0.12 |
| Liver dysfunction | 42 (22.1%) | 1,499 (12.3%) | <0.01 |
| Anemia | 23 (12.1%) | 954 (7.8%) | 0.03 |
| Electrolyte imbalance | 33 (17.4%) | 1,616 (13.3%) | 0.10 |
| Cardiac insufficiency | 19 (10.0%) | 3,326 (27.3%) | <0.01 |
| Hypoproteinemia | 41 (21.6%) | 1,651 (13.6%) | <0.01 |
| Length of hospital stay, days, M ± SD | 21.8 ± 19.5 | 12.7 ± 9.3 | <0.01 |
| Medical expenses, CNY, M ± SD | 35,325 ± 56,871 | 27,818 ± 171,658 | 0.55 |
Note:
COPD, chronic obstructive pulmonary disease; CNY, Chinese yuan; M ± SD, mean ± standard deviation.