Table 1. Characteristics of subjects.
ICS: Inhaled corticosteroid; LABA: Long-acting beta-agonist
| Categories | Control subjects | Subjects with asthma |
| Number of subjects | 20 | 42 |
| Sex (male/female) | 11/9 | 23/19 |
| Mean age | 31.08 | 37.06 |
| Duration of asthma (years) | - | 1 to >30 |
| ICS usage LABA usage | 36 6 | |
| Clinical presentation at the time of sampling | ||
| Shortness of breath | No | Increased |
| Cough | A symptomatic coughing | Continuing |
| Wheezing | Normal | Frequently loud |
| Chest tightness | No | Present |
| Mucus production | Not present | Increased |
| Respiratory tract infection (viral, bacterial, and fungal) | Not present | Not present |
| Speaking | Normal | Difficult |
| Mean of heart rate per minute | 96.06 | 109.07 |
| Mean of O2 saturation % | 95.08 | 90.5 |