Quality of spirometry in the workplace; reproducibility and practical considerations, including comorbidity

Unreproducible spirometry in this study was associated with lower body mass index and the presence of work-related respiratory symptoms, with B estimates and p values respectively of -0.103 (p=0.036) and –0.994 (p=0.021), after correction for the effects of age, and smoking. Gender was not included in the final logistic model as all the small number of female workers attained reproducible results. Brick manufacturers and stone workers were asked specific physical activity questions. Early analysis indicates workers with reproducible spirometry and a BMI between 18.5-30 had the highest number of days of physical activity between 5 and 7 days (52%, 85/165). Quality of spirometry in the workplace; reproducibility and practical considerations, including comorbidity