Analysis of high predicted pulmonary function: possibility of overestimation in small elderly examinees
Background/Aims Few studies have attempted to interpret unusually high predicted pulmonary function test results. This study aimed to investigate the demographic features of patients with an unusually high predicted pulmonary function. Methods The demographic data of subjects who underwent pulmonary...
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The Korean Association of Internal Medicine
2020-01-01
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| Series: | The Korean Journal of Internal Medicine |
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| Online Access: | http://www.kjim.org/upload/pdf/kjim-2018-305.pdf |
| _version_ | 1818355808006569984 |
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| author | Youjin Chang Ho Cheol Kim Kyung-Wook Jo Jae Seung Lee Yeon-Mok Oh Sang Do Lee Sei Won Lee |
| author_facet | Youjin Chang Ho Cheol Kim Kyung-Wook Jo Jae Seung Lee Yeon-Mok Oh Sang Do Lee Sei Won Lee |
| author_sort | Youjin Chang |
| collection | DOAJ |
| description | Background/Aims Few studies have attempted to interpret unusually high predicted pulmonary function test results. This study aimed to investigate the demographic features of patients with an unusually high predicted pulmonary function. Methods The demographic data of subjects who underwent pulmonary function testing at a tertiary referral hospital during between January 2011 and December 2011 were retrospectively reviewed. Results Of the 68,693 included patients, 55 (0.08%) had a percent predicted forced expiratory volume in 1 second or forced vital capacity ≥ 140%. These patients had a relatively older median age (72 years vs. 54 years, p < 0.001), female predominance (65.5% vs. 42.5%, p = 0.001), lower body weight (52.5 kg vs. 64.5 kg, p < 0.001) and shorter height (148.4 cm vs. 164.2 cm, p < 0.001). Furthermore, 6.1% of women older than 80 years with weight < 50 kg and height < 150 cm had a high predicted pulmonary function. Conclusions A high predicted pulmonary function is not rare among elderly subjects with a small body size. Physicians should consider the demographics of the examinees, especially those of minority populations, particularly as the test results might be determined using an incorrect reference equation. |
| first_indexed | 2024-12-13T19:47:12Z |
| format | Article |
| id | doaj.art-4d9f85971c4a47b09210b505ad1bffe5 |
| institution | Directory Open Access Journal |
| issn | 1226-3303 2005-6648 |
| language | English |
| last_indexed | 2024-12-13T19:47:12Z |
| publishDate | 2020-01-01 |
| publisher | The Korean Association of Internal Medicine |
| record_format | Article |
| series | The Korean Journal of Internal Medicine |
| spelling | doaj.art-4d9f85971c4a47b09210b505ad1bffe52022-12-21T23:33:32ZengThe Korean Association of Internal MedicineThe Korean Journal of Internal Medicine1226-33032005-66482020-01-0135114214910.3904/kjim.2018.305170247Analysis of high predicted pulmonary function: possibility of overestimation in small elderly examineesYoujin Chang0Ho Cheol Kim1Kyung-Wook Jo2Jae Seung Lee3Yeon-Mok Oh4Sang Do Lee5Sei Won Lee6 Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Inje University Sanggye Paik Hospital, Seoul, Korea Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, KoreaBackground/Aims Few studies have attempted to interpret unusually high predicted pulmonary function test results. This study aimed to investigate the demographic features of patients with an unusually high predicted pulmonary function. Methods The demographic data of subjects who underwent pulmonary function testing at a tertiary referral hospital during between January 2011 and December 2011 were retrospectively reviewed. Results Of the 68,693 included patients, 55 (0.08%) had a percent predicted forced expiratory volume in 1 second or forced vital capacity ≥ 140%. These patients had a relatively older median age (72 years vs. 54 years, p < 0.001), female predominance (65.5% vs. 42.5%, p = 0.001), lower body weight (52.5 kg vs. 64.5 kg, p < 0.001) and shorter height (148.4 cm vs. 164.2 cm, p < 0.001). Furthermore, 6.1% of women older than 80 years with weight < 50 kg and height < 150 cm had a high predicted pulmonary function. Conclusions A high predicted pulmonary function is not rare among elderly subjects with a small body size. Physicians should consider the demographics of the examinees, especially those of minority populations, particularly as the test results might be determined using an incorrect reference equation.http://www.kjim.org/upload/pdf/kjim-2018-305.pdfpulmonary function testspirometryforced expiratory volumeforced vital capacity |
| spellingShingle | Youjin Chang Ho Cheol Kim Kyung-Wook Jo Jae Seung Lee Yeon-Mok Oh Sang Do Lee Sei Won Lee Analysis of high predicted pulmonary function: possibility of overestimation in small elderly examinees The Korean Journal of Internal Medicine pulmonary function test spirometry forced expiratory volume forced vital capacity |
| title | Analysis of high predicted pulmonary function: possibility of overestimation in small elderly examinees |
| title_full | Analysis of high predicted pulmonary function: possibility of overestimation in small elderly examinees |
| title_fullStr | Analysis of high predicted pulmonary function: possibility of overestimation in small elderly examinees |
| title_full_unstemmed | Analysis of high predicted pulmonary function: possibility of overestimation in small elderly examinees |
| title_short | Analysis of high predicted pulmonary function: possibility of overestimation in small elderly examinees |
| title_sort | analysis of high predicted pulmonary function possibility of overestimation in small elderly examinees |
| topic | pulmonary function test spirometry forced expiratory volume forced vital capacity |
| url | http://www.kjim.org/upload/pdf/kjim-2018-305.pdf |
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