Table 2.
Baseline characteristics of the study population.
| Aspiration pneumonia |
P | ||
|---|---|---|---|
| No (n = 27,601) | Yes (n = 315) | ||
| Age (y) | 57.8 ± 18.7291 | 57.95 ± 18.7436 | <0.0001 |
| Male | 13,723 (49.72%) | 187 (59.37%) | 0.001 |
| Myocardial infarction | 600 (2.17%) | 20 (6.35%) | <0.0001 |
| Congestive heart failure | 1247 (4.52%) | 27 (8.57%) | 0.001 |
| Peripheral vascular disease & aneurysm | 89 (0.32%) | 5 (1.59%) | 0.000 |
| CVA: Ischemic | 2150 (7.79%) | 64 (20.32%) | <0.0001 |
| Dementia | 675 (2.45%) | 19 (6.03%) | <0.0001 |
| COPD | 4142 (15.01%) | 106 (33.65%) | <0.0001 |
| Connective tissue disease | 241 (0.87%) | 4 (1.27%) | 0.453 |
| Peptic ulcer | 876 (3.17%) | 8 (2.54%) | 0.523 |
| Liver disease | 3172 (11.49%) | 44 (13.97%) | 0.171 |
| DM without organ damage | 4503 (16.31%) | 76 (24.13%) | 0.000 |
| Hemiplegia | 448 (1.62%) | 14 (4.44%) | <0.0001 |
| CKD | 803 (2.91%) | 17 (5.40%) | 0.009 |
| DM with organ damage | 2633 (9.54%) | 48 (15.24%) | 0.001 |
| Tumor without metastasis, leukemia, lymphoma | 4422 (16.02%) | 59 (18.73%) | 0.193 |
| Metastatic solid tumor | 450 (1.63%) | 12 (3.81%) | 0.003 |
| AIDS | 12 (0.04%) | 0 (0.00%) | 0.003 |
| Dysphagia | 6857 (24.84%) | 122 (38.753%) | <0.0001 |
| Mortality | 4317 (15.64%) | 149 (47.30%) | <0.0001 |
Data are presented as n (%) or mean ± standard deviation. Student t test and X2 tests were used for continuous variables and categorical variables, respectively. CVA = cerebral vascular accident; COPD = chronic obstructive pulmonary disease; DM = diabetes mellitus; CKD = chronic kidney disease; AIDS = acquired immune deficiency syndrome.