Table I. Patient Characteristics.
| Enrollment | N = 7 |
|---|---|
| Median age (range) | 41.4 (23–74) |
| Sex, male/female n (%) | 1 (14) / 6 (86) |
| Tobacco use n (%) | |
| Current | 1 (14) |
| Former | 3 (43) |
| Never | 3 (43) |
| Cotton-Meyer grade, n (%) | |
| 1 | 0 (0) |
| 2 | 1 (14) |
| 3 | 6 (86) |
| 4 | 0 (0) |
| Tracheotomy, n (%) | |
| Presented with | 2 (28) |
| Required during biopsy | 0 (0) |
| Etiology, n (%) | |
| Iatrogenic | 7 (100) |
| Congenital | 0 (0) |
| Medication utilization, n (%) | |
| Autoimmune/autosuppressant therapy | 0 (0) |
| Oxygen therapy | 1 (14) |
| Inhaled steroid | 1 (14) |
| PPI | 1 (14) |
| Comorbidities, n (%) | |
| Asthma | 3 (43) |
| Chronic obstructive | 1 (14) |
| Depression | 3 (43) |
| Laryngopharyngeal reflux | 1 (14) |
| Hemiplegia | 1 (14) |
| Hypertension | 3 (43) |
| Obstructive sleep apnea | 1 (14) |
| Solid tumor | 1 (14) |
| Inflammatory tissue disease | 0 (0) |
| Aspiration pneumonia secondary to dysphagia | 0 (0) |
| Months from injury to treatment, average (± SEM) | 14.9 (± 4.8) |
SEM = standard error of the mean; PPI = proton pump inhibitor.