Reliability of Portable Spirometry Performed in the Korea National Health and Nutrition Examination Survey Compared to Conventional Spirometry
Background The Korea National Health and Nutrition Examination Survey (KNHANES) is a well-designed survey to collect national data, which many researchers have used for their studies. In KNHANES, although portable spirometry was used, its reliability has not been verified. Methods We prospectively e...
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The Korean Academy of Tuberculosis and Respiratory Diseases
2021-10-01
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| Series: | Tuberculosis and Respiratory Diseases |
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| Online Access: | http://e-trd.org/upload/pdf/trd-2021-0016.pdf |
| _version_ | 1831572334490681344 |
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| author | Hye Jung Park Chin Kook Rhee Kwang Ha Yoo Yong Bum Park |
| author_facet | Hye Jung Park Chin Kook Rhee Kwang Ha Yoo Yong Bum Park |
| author_sort | Hye Jung Park |
| collection | DOAJ |
| description | Background The Korea National Health and Nutrition Examination Survey (KNHANES) is a well-designed survey to collect national data, which many researchers have used for their studies. In KNHANES, although portable spirometry was used, its reliability has not been verified. Methods We prospectively enrolled 58 participants from four Korean institutions. The participants were classified into normal pattern, obstructive pattern, and restrictive pattern groups according to their previous spirometry results. Lung function was estimated by conventional spirometry and portable spirometry, and the results were compared. Results The intraclass correlation coefficients of forced vital capacity (FVC) (coefficient, 9.993; 95% confidence interval [CI], 0.988–0.996), forced expiratory volume in 1 second (FEV1) (coefficient, 0.997; 95% CI, 0.995–0.998), FEV1/FVC ratio (coefficient, 0.995; 95% CI, 0.992–0.997), and forced expiratory flow at 25–75% (FEF25–75%; coefficient, 0.991; 95% CI, 0.984–0.994) were excellent (all p<0.001). In the subgroup analysis, the results of the three parameters were similar in all groups. In the overall and subgroup analyses, Pearson’s correlation of all the parameters was also excellent in the total (coefficient, 0.986–0.994; p<0.001) and subgroup analyses (coefficient, 0.915–0.995; p<0.001). In the paired t-test, FVC, FEV1/FVC, and FEF25–75% estimated by the two instruments were statistically different. However, FEV1 was not significantly different. Conclusion Lung function estimated by portable spirometry was well-correlated with that estimated by conventional spirometry. Although the values had minimal differences between them, we suggest that the spirometry results from the KNHANES are reliable. |
| first_indexed | 2024-12-17T13:24:31Z |
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| issn | 1738-3536 2005-6184 |
| language | English |
| last_indexed | 2024-12-17T13:24:31Z |
| publishDate | 2021-10-01 |
| publisher | The Korean Academy of Tuberculosis and Respiratory Diseases |
| record_format | Article |
| series | Tuberculosis and Respiratory Diseases |
| spelling | doaj.art-672716953e754981af4847bd04e996b32022-12-21T21:46:46ZengThe Korean Academy of Tuberculosis and Respiratory DiseasesTuberculosis and Respiratory Diseases1738-35362005-61842021-10-0184427428110.4046/trd.2021.00164570Reliability of Portable Spirometry Performed in the Korea National Health and Nutrition Examination Survey Compared to Conventional SpirometryHye Jung Park0Chin Kook Rhee1Kwang Ha Yoo2Yong Bum Park3 Department of Internal Medicine, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Konkuk University School of Medicine, Seoul, Republic of Korea Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Internal Medicine, Hallym University Kangdong Sacred Heart Hospital, Seoul, Republic of KoreaBackground The Korea National Health and Nutrition Examination Survey (KNHANES) is a well-designed survey to collect national data, which many researchers have used for their studies. In KNHANES, although portable spirometry was used, its reliability has not been verified. Methods We prospectively enrolled 58 participants from four Korean institutions. The participants were classified into normal pattern, obstructive pattern, and restrictive pattern groups according to their previous spirometry results. Lung function was estimated by conventional spirometry and portable spirometry, and the results were compared. Results The intraclass correlation coefficients of forced vital capacity (FVC) (coefficient, 9.993; 95% confidence interval [CI], 0.988–0.996), forced expiratory volume in 1 second (FEV1) (coefficient, 0.997; 95% CI, 0.995–0.998), FEV1/FVC ratio (coefficient, 0.995; 95% CI, 0.992–0.997), and forced expiratory flow at 25–75% (FEF25–75%; coefficient, 0.991; 95% CI, 0.984–0.994) were excellent (all p<0.001). In the subgroup analysis, the results of the three parameters were similar in all groups. In the overall and subgroup analyses, Pearson’s correlation of all the parameters was also excellent in the total (coefficient, 0.986–0.994; p<0.001) and subgroup analyses (coefficient, 0.915–0.995; p<0.001). In the paired t-test, FVC, FEV1/FVC, and FEF25–75% estimated by the two instruments were statistically different. However, FEV1 was not significantly different. Conclusion Lung function estimated by portable spirometry was well-correlated with that estimated by conventional spirometry. Although the values had minimal differences between them, we suggest that the spirometry results from the KNHANES are reliable.http://e-trd.org/upload/pdf/trd-2021-0016.pdfpulmonary function testreliabilityspirometry |
| spellingShingle | Hye Jung Park Chin Kook Rhee Kwang Ha Yoo Yong Bum Park Reliability of Portable Spirometry Performed in the Korea National Health and Nutrition Examination Survey Compared to Conventional Spirometry Tuberculosis and Respiratory Diseases pulmonary function test reliability spirometry |
| title | Reliability of Portable Spirometry Performed in the Korea National Health and Nutrition Examination Survey Compared to Conventional Spirometry |
| title_full | Reliability of Portable Spirometry Performed in the Korea National Health and Nutrition Examination Survey Compared to Conventional Spirometry |
| title_fullStr | Reliability of Portable Spirometry Performed in the Korea National Health and Nutrition Examination Survey Compared to Conventional Spirometry |
| title_full_unstemmed | Reliability of Portable Spirometry Performed in the Korea National Health and Nutrition Examination Survey Compared to Conventional Spirometry |
| title_short | Reliability of Portable Spirometry Performed in the Korea National Health and Nutrition Examination Survey Compared to Conventional Spirometry |
| title_sort | reliability of portable spirometry performed in the korea national health and nutrition examination survey compared to conventional spirometry |
| topic | pulmonary function test reliability spirometry |
| url | http://e-trd.org/upload/pdf/trd-2021-0016.pdf |
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