From:  Novel research in the field of non-invasive diagnostics of Helicobacter pylori utilizing a library of chemical piezoelectric sensors and portable devices

 Pearson parameters and tightness of connection for the signal sample of one bioscanner sensor and a non-selective array of electronic nose sensors at different stages of monitoring.

Control date (curve number on the graph)Dynamics of the change of the signal of the active sensor in an array of ENRelative change in the maximum expiratory response (%) of the lung EN sensors (I) and the skin on the right cheek of the bioscanner sensor (II) on different monitoring daysPearson correlation coefficient, RX, Y
09/07/2020 (1)
14/07/2020 (2)0.196 (1, 2)
16/07/2020 (3)–0.181 (2, 3)
23/07/2020 (4)–0.227 (3, 4)
28/07/2020 (5)0.589 (4, 5)
06/08/2020 (6)0.175 (1, 6)
0.520 (5, 6)
15/07/2020
after meals (7)
–0.326 (1 and 7)

EN: electronic nose.