Table 1.
Comorbidities of the study and control groups.
| Tracheostomy no. (%) | Non tracheostomy no. (%) | p | |
|---|---|---|---|
| Smoker | 0 (0) | 2 (1.6) | >0.99 |
| Past smoker | 3 (10) | 8 (6.3) | 0.44 |
| COPD | 0 (0) | 13 (9.4) | 0.13 |
| Hypertension | 16 (53.3) | 72 (56.7) | 0.74 |
| Diabetes | 10 (33.3) | 53 (41.7) | 0.40 |
| IHD | 10 (33.3) | 24 (18.9) | 0.08 |
| CHF | 2 (6.7) | 16 (12.6) | 0.53 |
| Active malignancy | 0 (0) | 8 (6.3) | 0.36 |
| Past malignancy | 3 (10) | 10 (7.9) | 0.72 |
| Chronic renal failure | 3 (10) | 21 (16.5) | 0.57 |
| Dementia | 2 (6.7) | 21 (16.5) | 0.25 |
| Immunodefficiency | 1 (3.3) | 5 (3.9) | >0.99 |
| Chronic liver disease (cirhossis, hepatitis, hepatic transplantation) | 0 (0) | 1 (1.6) | >0.99 |
| Dialysis | 0 (0) | 1 (0.8) | >0.99 |
| Overweight (BMI > 25) | 11 (73.3) | 26 (52) | 0.23 |
Abbreviations: COPD- chronic obstructive pulmonary disease; IHD- ischemic heart disease; CHF- congestive heart failure; BMI- body mass index.