| Title |
Modified Medical Research Council scale vs Baseline Dyspnea Index to evaluate dyspnea in chronic obstructive pulmonary disease
|
|---|---|
| Published in |
International Journal of Chronic Obstructive Pulmonary Disease, August 2015
|
| DOI | 10.2147/copd.s82408 |
| Pubmed ID | |
| Authors |
Thierry Perez, Pierre Régis Burgel, Jean-Louis Paillasseur, Denis Caillaud, Gaetan Deslée, Pascal Chanez, Nicolas Roche |
| Abstract |
Assessment of dyspnea in COPD patients relies in clinical practice on the modified Medical Research Council (mMRC) scale, whereas the Baseline Dyspnea Index (BDI) is mainly used in clinical trials. Little is known on the correspondence between the two methods. Cross-sectional analysis was carried out on data from the French COPD cohort Initiatives BPCO. Dyspnea was assessed by the mMRC scale and the BDI. Spirometry, plethysmography, Hospital Anxiety-Depression Scale, St George's Respiratory Questionnaire, exacerbation rates, and physician-diagnosed comorbidities were obtained. Correlations between mMRC and BDI scores were assessed using Spearman's correlation coefficient. An ordinal response model was used to examine the contribution of clinical data and lung function parameters to mMRC and BDI scores. Data are given as median (interquartile ranges, [IQR]). Two-hundred thirty-nine COPD subjects were analyzed (men 78%, age 65.0 years [57.0; 73.0], forced expiratory volume in 1 second [FEV1] 48% predicted [34; 67]). The mMRC grade and BDI score were, respectively, 1 [1-3] and 6 [4-8]. Both BDI and mMRC scores were significantly correlated at the group level (rho =-0.67; P<0.0001), but analysis of individual data revealed a large scatter of BDI scores for any given mMRC grade. In multivariate analysis, both mMRC grade and BDI score were independently associated with lower FEV1% pred, higher exacerbation rate, obesity, depression, heart failure, and hyperinflation, as assessed by the inspiratory capacity/total lung capacity ratio. The mMRC dyspnea grade was also associated with the thromboembolic history and low body mass index. Dyspnea is a complex symptom with multiple determinants in COPD patients. Although related to similar factors (including hyperinflation, depression, and heart failure), BDI and mMRC scores likely explore differently the dyspnea intensity in COPD patients and are clearly not interchangeable. |
X Demographics
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Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 1 | 100% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Practitioners (doctors, other healthcare professionals) | 1 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 131 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United Kingdom | 1 | <1% |
| Unknown | 130 | 99% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Master | 23 | 18% |
| Student > Bachelor | 18 | 14% |
| Student > Doctoral Student | 10 | 8% |
| Other | 9 | 7% |
| Researcher | 9 | 7% |
| Other | 22 | 17% |
| Unknown | 40 | 31% |
| Readers by discipline | Count | As % |
|---|---|---|
| Medicine and Dentistry | 42 | 32% |
| Nursing and Health Professions | 23 | 18% |
| Sports and Recreations | 4 | 3% |
| Psychology | 4 | 3% |
| Neuroscience | 2 | 2% |
| Other | 9 | 7% |
| Unknown | 47 | 36% |
Attention Score in Context
This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 19 August 2015.
All research outputs
#19,944,091
of 25,373,627 outputs
Outputs from International Journal of Chronic Obstructive Pulmonary Disease
#1,937
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Outputs of similar age
#188,876
of 276,419 outputs
Outputs of similar age from International Journal of Chronic Obstructive Pulmonary Disease
#64
of 87 outputs
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