Table 2. Distribution of the studied patients according to the type of cardiac disease, chronic diseases, exposure to immunosuppressives, chemotherapy and radiotherapy in the last six months, glucocorticoid use, the application of ventilator, initial and second chest X-ray results, and pneumonia vaccine status.
NA, not applicable; MI, myocardial infarction; HTN, hypertension; DM, diabetes mellitus
| Variable | Number (%) |
| Type of cardiac disease | |
| Heart failure | 363 (72.6) |
| Mitral regurgitation | 5 (1) |
| Mitral stenosis | 5 (1) |
| Aortic regurgitation | 1 (0.2) |
| Aortic stenosis | 10 (2) |
| MI | 113 (22.6) |
| Arrhythmia | 70 (14) |
| Ischemic heart disease | 160 (32) |
| HTN | 400 (80) |
| DM | 346 (69.2) |
| Autoimmune diseases | 13 (2.6) |
| Exposure to immunosuppressives | 27 (5.4) |
| Exposure to chemotherapy within the last six months | 14 (2.8) |
| Exposure to radiation therapy within the last six months | 5 (1) |
| Glucocorticoid use | 97 (19.4) |
| Application of ventilator | |
| NA | 43 (8.6) |
| No | 439 (87.8) |
| Yes | 18 (3.6) |
| Initial chest X-ray | |
| Abnormal | 100 (20) |
| NA | 222 (44.4) |
| Normal | 178 (35.6) |
| Second chest X-ray during hospitalization | |
| Abnormal "consolidation" | 63 (12.6) |
| NA | 324 (64.8) |
| Normal | 113 (22.6) |
| Pneumonia vaccine | |
| NA | 488 (97.6) |
| No | 10 (2) |
| Yes | 2 (0.4) |