Table 3. Mean peak inspiratory flow rates in the asthma group, by clinical characteristics.a .
| Variable | p* | ||||
|---|---|---|---|---|---|
| PIF, L/s | BMI | ||||
| Underweight | Normal weight | Overweight | Obese | ||
| 4 (4.4 ± 1.2) | 24 (4.6 ± 0.8) | 9 (4.2 ± 1.0) | 7 (3.8 ± 0.6) | 0.165 | |
| Level of physical activity (HLPA score) | |||||
| Sedentary lifestyle | Regular physical activity (≤ 2 h/week) | Physical activity > 2 h/week | |||
| 14 (4.2 ± 0.6) | 16 (4.0 ± 0.7) | 14 (4.8 ± 1.1) | 0.045 | ||
| Asthma control (ACT) | |||||
| Controlled asthma | Partly controlled asthma | Uncontrolled asthma | |||
| 27 (4.5 ± 0.9) | 11 (4.3 ± 0.7) | 6 (3.6 ± 0.6) | 0.060 | ||
| Sex | |||||
| Female | Male | ||||
| 24 (4.28 ± 0.61) | 20 (4.42 ± 1.12) | 0.60 | |||
| Daily inhaled corticosteroid dose | |||||
| Low | Intermediate | High | |||
| 22 (4.46 ± 0.87) | 14 (4.46 ± 0.85) | 8 (4.44 ± 0.89) | 0.74 | ||
| Inhaler technique | |||||
| Correct | Incorrect | ||||
| 25 (4.30 ± 0.93) | 19 (4.40 ± 0.81) | 0.70 | |||
PIF: peak inspiratory flow; HLPA: habitual level of physical activity; and ACT: Asthma Control Test. aValues expressed as n of participants and (mean ± SD) PIF. *ANOVA.