Normative Reference Equations for Breathlessness Intensity during Incremental Cardiopulmonary Cycle Exercise Testing
Rationale: Cardiopulmonary exercise testing (CPET) is the gold standard to evaluate exertional breathlessness, a common and disabling symptom. However, the interpretation of breathlessness responses to CPET is limited by a scarcity of normative data. Objectives: We aimed to develop normative reference equations for breathlessness intensity (Borg 0-10 category ratio) response in men and women aged ⩾40 years during CPET, in relation to power output (watts), oxygen uptake, and minute ventilation. Methods: Analysis of ostensibly healthy people aged ⩾40 years undergoing symptom-limited incremental cycle CPET (10 W/min) in the CanCOLD (Canadian Cohort Obstructive Lung Disease) study. Participants had smoking histories <5 pack-years and normal lung function and exercise capacity. The probability of each Borg 0-10 category ratio breathlessness intensity rating by power output, oxygen uptake, and minute ventilation (as an absolute or a relative value [percentage of predicted maximum]) was predicted using ordinal multinomial logistic regression. Model performance was evaluated by fit, calibration, and discrimination (C statistic) and externally validated in an independent sample (n = 86) of healthy Canadian adults. Results: We included 156 participants (43% women) from CanCOLD; the mean age was 65 (range, 42-91) years, and the mean body mass index was 26.3 (standard deviation, 3.8) kg/m2. Reference equations were developed for women and men separately, accounting for age and/or body mass. Model performance was high across all equations, including in the validation sample (C statistic for men = 0.81-0.92, C statistic for women = 0.81-0.96). Conclusions: Normative reference equations are provided to compare exertional breathlessness intensity ratings among individuals or groups and to identify and quantify abnormal breathlessness responses (scores greater than the upper limit of normal) during CPET.
Medienart: |
E-Artikel |
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Erscheinungsjahr: |
2024 |
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Erschienen: |
2024 |
Enthalten in: |
Zur Gesamtaufnahme - volume:21 |
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Enthalten in: |
Annals of the American Thoracic Society - 21(2024), 1 vom: 15. Jan., Seite 56-67 |
Sprache: |
Englisch |
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Beteiligte Personen: |
Ekström, Magnus [VerfasserIn] |
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Links: |
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Themen: |
Dyspnea |
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Anmerkungen: |
Date Completed 01.01.2024 Date Revised 17.02.2024 published: Print Citation Status MEDLINE |
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doi: |
10.1513/AnnalsATS.202305-394OC |
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funding: |
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Förderinstitution / Projekttitel: |
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PPN (Katalog-ID): |
NLM362056226 |
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245 | 1 | 0 | |a Normative Reference Equations for Breathlessness Intensity during Incremental Cardiopulmonary Cycle Exercise Testing |
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520 | |a Rationale: Cardiopulmonary exercise testing (CPET) is the gold standard to evaluate exertional breathlessness, a common and disabling symptom. However, the interpretation of breathlessness responses to CPET is limited by a scarcity of normative data. Objectives: We aimed to develop normative reference equations for breathlessness intensity (Borg 0-10 category ratio) response in men and women aged ⩾40 years during CPET, in relation to power output (watts), oxygen uptake, and minute ventilation. Methods: Analysis of ostensibly healthy people aged ⩾40 years undergoing symptom-limited incremental cycle CPET (10 W/min) in the CanCOLD (Canadian Cohort Obstructive Lung Disease) study. Participants had smoking histories <5 pack-years and normal lung function and exercise capacity. The probability of each Borg 0-10 category ratio breathlessness intensity rating by power output, oxygen uptake, and minute ventilation (as an absolute or a relative value [percentage of predicted maximum]) was predicted using ordinal multinomial logistic regression. Model performance was evaluated by fit, calibration, and discrimination (C statistic) and externally validated in an independent sample (n = 86) of healthy Canadian adults. Results: We included 156 participants (43% women) from CanCOLD; the mean age was 65 (range, 42-91) years, and the mean body mass index was 26.3 (standard deviation, 3.8) kg/m2. Reference equations were developed for women and men separately, accounting for age and/or body mass. Model performance was high across all equations, including in the validation sample (C statistic for men = 0.81-0.92, C statistic for women = 0.81-0.96). Conclusions: Normative reference equations are provided to compare exertional breathlessness intensity ratings among individuals or groups and to identify and quantify abnormal breathlessness responses (scores greater than the upper limit of normal) during CPET | ||
650 | 4 | |a Journal Article | |
650 | 4 | |a dyspnea | |
650 | 4 | |a exercise capacity | |
650 | 4 | |a normal values | |
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700 | 1 | |a Li, Pei Zhi |e verfasserin |4 aut | |
700 | 1 | |a Lewthwaite, Hayley |e verfasserin |4 aut | |
700 | 1 | |a Bourbeau, Jean |e verfasserin |4 aut | |
700 | 1 | |a Tan, Wan C |e verfasserin |4 aut | |
700 | 1 | |a Schiöler, Linus |e verfasserin |4 aut | |
700 | 1 | |a Brotto, Andrew |e verfasserin |4 aut | |
700 | 1 | |a Stickland, Michael K |e verfasserin |4 aut | |
700 | 1 | |a Jensen, Dennis |e verfasserin |4 aut | |
700 | 0 | |a CanCOLD Collaborative Research Group |e verfasserin |4 aut | |
700 | 1 | |a Bourbeau, Jean |e investigator |4 oth | |
700 | 1 | |a Tan, Wan C |e investigator |4 oth | |
700 | 1 | |a FitzGerald, J Mark |e investigator |4 oth | |
700 | 1 | |a Sin, Don D |e investigator |4 oth | |
700 | 1 | |a Marciniuk, Darcy D |e investigator |4 oth | |
700 | 1 | |a O'Donnell, Denis E |e investigator |4 oth | |
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700 | 1 | |a Fortier, Yvan |e investigator |4 oth | |
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700 | 1 | |a To, Teresa |e investigator |4 oth | |
700 | 1 | |a Gershon, Andrea |e investigator |4 oth | |
700 | 1 | |a Song, Zhi |e investigator |4 oth | |
700 | 1 | |a Benedetti, Andrea |e investigator |4 oth | |
700 | 1 | |a Lo, Christine |e investigator |4 oth | |
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