Validation of the portable Air-Smart Spirometer.
The Air-Smart Spirometer is the first portable device accepted by the European Community (EC) that performs spirometric measurements by a turbine mechanism and displays the results on a smartphone or a tablet.In this multicenter, descriptive and cross-sectional prospective study carried out in 2 hos...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2018-01-01
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| Series: | PLoS ONE |
| Online Access: | http://europepmc.org/articles/PMC5825056?pdf=render |
| _version_ | 1818217947927150592 |
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| author | Cristina Ramos Hernández Marta Núñez Fernández Abel Pallares Sanmartín Cecilia Mouronte Roibas Luz Cerdeira Domínguez Maria Isabel Botana Rial Nagore Blanco Cid Alberto Fernández Villar |
| author_facet | Cristina Ramos Hernández Marta Núñez Fernández Abel Pallares Sanmartín Cecilia Mouronte Roibas Luz Cerdeira Domínguez Maria Isabel Botana Rial Nagore Blanco Cid Alberto Fernández Villar |
| author_sort | Cristina Ramos Hernández |
| collection | DOAJ |
| description | The Air-Smart Spirometer is the first portable device accepted by the European Community (EC) that performs spirometric measurements by a turbine mechanism and displays the results on a smartphone or a tablet.In this multicenter, descriptive and cross-sectional prospective study carried out in 2 hospital centers, we compare FEV1, FVC, FEV1/FVC ratio measured with the Air Smart-Spirometer device and a conventional spirometer, and analyze the ability of this new portable device to detect obstructions. Patients were included for 2 consecutive months. We calculate sensitivity, specificity, positive and negative predictive value (PPV and NPV) and likelihood ratio (LR +, LR-) as well as the Kappa Index to evaluate the concordance between the two devices for the detection of obstruction. The agreement and relation between the values of FEV1 and FVC in absolute value and the FEV1/FVC ratio measured by both devices were analyzed by calculating the intraclass correlation coefficient (ICC) and the Pearson correlation coefficient (r) respectively.200 patients (100 from each center) were included with a mean age of 57 (± 14) years, 110 were men (55%). Obstruction was detected by conventional spirometry in 73 patients (40.1%). Using a FEV1/FVC ratio smaller than 0.7 to detect obstruction with the Air Smart-Spirometer, the kappa index was 0.88, sensitivity (90.4%), specificity (97.2%), PPV (95.7%), NPV (93.7%), positive likelihood ratio (32.29), and negative likelihood ratio (0.10). The ICC and r between FEV1, FVC, and FEV1 / FVC ratio measured by the Air Smart Spirometer and the conventional spirometer were all higher than 0.94.The Air-Smart Spirometer is a simple and very precise instrument for detecting obstructive airway diseases. It is easy to use, which could make it especially useful non-specialized care and in other areas. |
| first_indexed | 2024-12-12T07:15:58Z |
| format | Article |
| id | doaj.art-4cb5d27c87214b5c869e76f12227c96e |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-12-12T07:15:58Z |
| publishDate | 2018-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-4cb5d27c87214b5c869e76f12227c96e2022-12-22T00:33:31ZengPublic Library of Science (PLoS)PLoS ONE1932-62032018-01-01132e019278910.1371/journal.pone.0192789Validation of the portable Air-Smart Spirometer.Cristina Ramos HernándezMarta Núñez FernándezAbel Pallares SanmartínCecilia Mouronte RoibasLuz Cerdeira DomínguezMaria Isabel Botana RialNagore Blanco CidAlberto Fernández VillarThe Air-Smart Spirometer is the first portable device accepted by the European Community (EC) that performs spirometric measurements by a turbine mechanism and displays the results on a smartphone or a tablet.In this multicenter, descriptive and cross-sectional prospective study carried out in 2 hospital centers, we compare FEV1, FVC, FEV1/FVC ratio measured with the Air Smart-Spirometer device and a conventional spirometer, and analyze the ability of this new portable device to detect obstructions. Patients were included for 2 consecutive months. We calculate sensitivity, specificity, positive and negative predictive value (PPV and NPV) and likelihood ratio (LR +, LR-) as well as the Kappa Index to evaluate the concordance between the two devices for the detection of obstruction. The agreement and relation between the values of FEV1 and FVC in absolute value and the FEV1/FVC ratio measured by both devices were analyzed by calculating the intraclass correlation coefficient (ICC) and the Pearson correlation coefficient (r) respectively.200 patients (100 from each center) were included with a mean age of 57 (± 14) years, 110 were men (55%). Obstruction was detected by conventional spirometry in 73 patients (40.1%). Using a FEV1/FVC ratio smaller than 0.7 to detect obstruction with the Air Smart-Spirometer, the kappa index was 0.88, sensitivity (90.4%), specificity (97.2%), PPV (95.7%), NPV (93.7%), positive likelihood ratio (32.29), and negative likelihood ratio (0.10). The ICC and r between FEV1, FVC, and FEV1 / FVC ratio measured by the Air Smart Spirometer and the conventional spirometer were all higher than 0.94.The Air-Smart Spirometer is a simple and very precise instrument for detecting obstructive airway diseases. It is easy to use, which could make it especially useful non-specialized care and in other areas.http://europepmc.org/articles/PMC5825056?pdf=render |
| spellingShingle | Cristina Ramos Hernández Marta Núñez Fernández Abel Pallares Sanmartín Cecilia Mouronte Roibas Luz Cerdeira Domínguez Maria Isabel Botana Rial Nagore Blanco Cid Alberto Fernández Villar Validation of the portable Air-Smart Spirometer. PLoS ONE |
| title | Validation of the portable Air-Smart Spirometer. |
| title_full | Validation of the portable Air-Smart Spirometer. |
| title_fullStr | Validation of the portable Air-Smart Spirometer. |
| title_full_unstemmed | Validation of the portable Air-Smart Spirometer. |
| title_short | Validation of the portable Air-Smart Spirometer. |
| title_sort | validation of the portable air smart spirometer |
| url | http://europepmc.org/articles/PMC5825056?pdf=render |
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