PIKO-6® vs. forced spirometry in asthmatic children

Summary Background The PIKO‐6® is an electronic device that measures forced expiratory volume at seconds 1 (FEV1) and 6 (FEV6) of a forced vital capacity (FVC) maneuver. This device could aid in diagnosing obstructive respiratory diseases. Objectives To determine the concordance of FEV1, FEV6, and the FEV1/FEV6 quotient achieved with PIKO‐6® versus spirometric values from asthmatic patients, and compare results with measures from healthy children. Methods A cross‐sectional study with asthmatic and healthy 6‐to‐14‐year‐old children, all of whom performed a forced spirometry as well as a PIKO‐6® test. Results The study included 82 subjects (58 asthmatics, 24 healthy children). Except for the functional parameters, the basal characteristics of the two groups were similar. The concordance correlation coefficient (CCC) for FEV1 was 0.938 (P