spirometry_validation
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spirometry_validation [2021/05/06 17:25] laura |
spirometry_validation [2022/08/01 15:30] (current) laura [Validation] |
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| ===== Validation ===== | ===== Validation ===== | ||
| - | [[Pulmonary Function Test|Spirometry]] is performed according to Standard Operating Procedures using the WEllch Allyn SpiroPerfect device. Judgment on technical correctness is performed by a Lifelines assistant, a pulmonologist, or both, according to a standard review procedure. Only data from pulmonary function tests that are judged to be technically correct should be used in the analyses. Technically correct is defined as: | + | [[Pulmonary Function Test|Spirometry]] is performed according to Standard Operating Procedures using the Welch Allyn SpiroPerfect device. Judgment on technical correctness is performed by a Lifelines assistant, a pulmonologist, or both, according to a standard review procedure. Only data from pulmonary function tests that are judged to be technically correct should be used in the analyses. Technically correct is defined as: |
| * Test performed according to ATS criteria or | * Test performed according to ATS criteria or | ||
| * Test not performed according to ATS criteria, but clinically reliable. | * Test not performed according to ATS criteria, but clinically reliable. | ||
| In case both the pulmonologist and the Lifelines assistant judged the technical correctness, the priority is given to the judgment of the pulmonologist.\\ | In case both the pulmonologist and the Lifelines assistant judged the technical correctness, the priority is given to the judgment of the pulmonologist.\\ | ||
| **Important:** part of the spirometry results have been listed as technically invalid, as a result the researchers from the UMCG recommend you to __NOT__ use these results in analyses.\\ | **Important:** part of the spirometry results have been listed as technically invalid, as a result the researchers from the UMCG recommend you to __NOT__ use these results in analyses.\\ | ||
| - | \\ | + | |
| === Validation rules === | === Validation rules === | ||
| To select only technically valid measurements the following rules were applied: | To select only technically valid measurements the following rules were applied: | ||
| Line 21: | Line 21: | ||
| |Other case|Spirometry is not technically correct| | |Other case|Spirometry is not technically correct| | ||
| - | \\ | ||
| - | \\ | ||
| ===== Reference values ===== | ===== Reference values ===== | ||
| Reference values based on age, height, and sex are calculated based on the Global Lung Function Initiative (GLI) using the [[https://www.ers-education.org/guidelines/global-lung-function-initiative.aspx|GLI provided syntax codes and databases]]. | Reference values based on age, height, and sex are calculated based on the Global Lung Function Initiative (GLI) using the [[https://www.ers-education.org/guidelines/global-lung-function-initiative.aspx|GLI provided syntax codes and databases]]. | ||
| - | |||
| === Remarks UMCG researcher === | === Remarks UMCG researcher === | ||
| * It is important to note that ethnicity has not been taken into account. Everyone has been treated as Caucasian. | * It is important to note that ethnicity has not been taken into account. Everyone has been treated as Caucasian. | ||
| - | * There are a few adults subjects with a huge difference in height between [[1a_visit_1|1A visit 1]] and [[2a_visit_1|2A visit 1]] resulting in a huge difference in reference values. It is recommended to exclude the adult subjects with a height difference of more than 5 cm using the height variable. | + | * There are a few adults subjects with a huge difference in height between [[1a_visit_1|1A visit 1]] and [[2a_visit_1|2A visit 1]] resulting in a huge difference in reference values. It is recommended to exclude the adult subjects with a height difference of more than 5 cm using the height variable.\\ |
| + | ===== Article ===== | ||
| + | * Mahon, G. M., Koppelman, G. H., & Vonk, J. M. (2021). Grandmaternal smoking, asthma and lung function in the offspring: the Lifelines cohort study. Thorax, 76(5), 441-447. DOI: 10.1136/thoraxjnl-2020-215232\\ | ||
| ===== Variables ===== | ===== Variables ===== | ||
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| | FEF75 % predicted | FEF75 % voorspeld | fef75_percpredicted_all_c_1 | fef75pp | [[1A visit 1|1A]] [[2A visit 1|2A]] | 18+ | | | FEF75 % predicted | FEF75 % voorspeld | fef75_percpredicted_all_c_1 | fef75pp | [[1A visit 1|1A]] [[2A visit 1|2A]] | 18+ | | ||
| | FEF25_75 % predicted | FEF25_75 % voorspeld | fef2575_percpredicted_all_c_1 | fef2575pp | [[1A visit 1|1A]] [[2A visit 1|2A]] | 18+ | | | FEF25_75 % predicted | FEF25_75 % voorspeld | fef2575_percpredicted_all_c_1 | fef2575pp | [[1A visit 1|1A]] [[2A visit 1|2A]] | 18+ | | ||
| - | | change in FEV1 2A versus 1A (liter per year) | verandering in FEV1 2A versus 1A (liter per jaar) | fev1_change_all_c_1 | dfev1 | [[1A visit 1|1A]] [[2A visit 1|2A]] | 18+ | | + | | change in FEV1 2A versus 1A (liter per year) | verandering in FEV1 2A versus 1A (liter per jaar) | fev1_change_all_c_1 | dfev1 | [[2A visit 1|2A]] | 18+ | |
| - | | change in FEV1FVC 2A versus 1A (liter per year) | verandering in FEV1FVC 2A versus 1A (liter per jaar) | fev1fvc_change_all_c_1 | dfev1fvc | [[1A visit 1|1A]] [[2A visit 1|2A]] | 18+ | | + | | change in FEV1FVC 2A versus 1A (liter per year) | verandering in FEV1FVC 2A versus 1A (liter per jaar) | fev1fvc_change_all_c_1 | dfev1fvc | [[2A visit 1|2A]] | 18+ | |
| - | | change in FVC 2A versus 1A (liter per year) | verandering in FVC1 2A versus 1A (liter per jaar) | fvc_change_all_c_1 | dfvc | [[1A visit 1|1A]] [[2A visit 1|2A]] | 18+ | | + | | change in FVC 2A versus 1A (liter per year) | verandering in FVC1 2A versus 1A (liter per jaar) | fvc_change_all_c_1 | dfvc | [[2A visit 1|2A]] | 18+ | |
| - | | change in FEF75 2A versus 1A (liter per second per year) | verandering in FEF75 2A versus 1A (liter per seconde per jaar) | fef75_change_all_c_1 | dfef75 | [[1A visit 1|1A]] [[2A visit 1|2A]] | 18+ | | + | | change in FEF75 2A versus 1A (liter per second per year) | verandering in FEF75 2A versus 1A (liter per seconde per jaar) | fef75_change_all_c_1 | dfef75 | [[2A visit 1|2A]] | 18+ | |
| - | | change in FEF25_75 2A versus 1A (liter per second per year) | verandering in FEF25_75 2A versus 1A (liter per seconde per jaar) | fef2575_change_all_c_1 | dfef2575 | [[1A visit 1|1A]] [[2A visit 1|2A]] | 18+ | | + | | change in FEF25_75 2A versus 1A (liter per second per year) | verandering in FEF25_75 2A versus 1A (liter per seconde per jaar) | fef2575_change_all_c_1 | dfef2575 | [[2A visit 1|2A]] | 18+ | |
| - | | difference in body length adults 2A versus 1A | verschil in lichaamslengte volwassenen 2A versus 1A | spirometry_bodylength_all_c_1 | heightdifference_adults | [[1A visit 1|1A]] [[2A visit 1|2A]] | 18+ | | + | | difference in body length adults 2A versus 1A | verschil in lichaamslengte volwassenen 2A versus 1A | spirometry_bodylength_all_c_1 | heightdifference_adults | [[2A visit 1|2A]] | 18+ | |
spirometry_validation.1620314722.txt.gz · Last modified: 2021/05/06 17:25 by laura
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