Table 2.
Analysis of the mean PIF in patients with suboptimal PIF who used dry powder inhalers (DPI) as a function of the degree of resistance.
| Resistance * | Number of Patients | PIF (L/min) | Sub-Optimal PIF |
|---|---|---|---|
| R1 | 49 | 95 (21) | 5 (10.2%) |
| R2 | 33 | 74 (18) | 6 (18.1%) |
| R3 | 17 | 74 (19) | 2 (11.7%) |
| R4 | 65 | 62 (14) | 26 (40%) |
| R5 | 22 | 40 (12) | 3 (13.6%) |
Values are expressed as the mean ± standard deviation or absolute (relative) frequencies according to the nature of the variable. * The values are defined in the text. PIF: peak inspiratory flow.