id author title date pages extension mime words sentences flesch summary cache txt cord-333078-8cto831y Kruizinga, Matthijs D. Technical validity and usability of a novel smartphone‐connected spirometry device for pediatric patients with asthma and cystic fibrosis 2020-07-08 .txt text/plain 2795 173 53 title: Technical validity and usability of a novel smartphone‐connected spirometry device for pediatric patients with asthma and cystic fibrosis The average difference between the Air Next and conventional spirometry was 40 mL for forced expiratory volume in 1 second (FEV1) and 3 mL for forced vital capacity (FVC). CONCLUSION: The Air Next device shows validity for the measurement of FEV1 and FVC in a pediatric patient population. 2, 3 Researchers have investigated the clinical value of home-based measurements of several devices for pediatric asthma and cystic fibrosis (CF). The aim of this study is to determine the agreement between the Air Next spirometer and conventional spirometry and to evaluate the usability of the device for children and parents when used at home. A total of 2047 spirometry measurements were performed with the Air Next device during the course of the study, resulting in an average compliance of 78%. ./cache/cord-333078-8cto831y.txt ./txt/cord-333078-8cto831y.txt