Main Outcome Measures: Mean morning peak expiratory flow over the 8 weeks of treatment, recorded daily, adjusted for baseline, age, height and sex. Results: The 90% CI for the treatment difference ...

Ten healthy men and seven women aged 20-36 years (mean(s.d.) 27.2(5.2) years) were used as subjects. Forced expiratory air volume at 1 s (FEV1) and peak expiratory flow rates (PEF) were measured on ...

Many outpatients with moderate to severe COPD had suboptimal peak inspiratory flow and had inappropriate devices for measured PIF.