Table 3.
Comparison of prevalence of insomnia among the participants who were or were not using specific inhalers regularly
| Inhaler (number of patients using) | Insomnia among users (%) | Insomnia among non-users (%) | P |
|---|---|---|---|
| Ipratropium (33) | 33.3 | 26.7 | 0.67 |
| Combivent (22) | 36.4 | 26.1 | 0.22 |
| Tiotropium (68) | 20.6 | 31.3 | 0.13 |
| Albuterol (88) | 22.7 | 31.6 | 0.19 |
| Formoterol (86) | 20.9 | 33.0 | 0.09 |
| Steroid inhaler: mometasone/flunisolide/fluticasone (86) | 22.1 | 32.0 | 0.18 |
| β-agonist; albuterol or formoterol (119) | 21.8 | 37.5 | 0.03 |
| Anticholinergic inhaler; ipratropium or tiotropium (101) | 24.0 | 30.8 | 0.37 |
| Long-acting inhalers; tiotropium or formoterol (105) | 21.0 | 35.9 | 0.03 |