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Assessment of Breathlessness in Lung Cancer: Psychometric Properties of the Dyspnea-12 Questionnaire

Overview of attention for article published in Journal of Pain & Symptom Management, February 2017
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  • Above-average Attention Score compared to outputs of the same age (63rd percentile)
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Title
Assessment of Breathlessness in Lung Cancer: Psychometric Properties of the Dyspnea-12 Questionnaire
Published in
Journal of Pain & Symptom Management, February 2017
DOI 10.1016/j.jpainsymman.2016.08.009
Pubmed ID
Authors

Jing-Yu Tan, Janelle Yorke, Amelie Harle, Jacky Smith, Fiona Blackhall, Mark Pilling, Alex Molassiotis

Abstract

The Dyspnoea-12 (D-12) is a well validated instrument in respiratory illnesses for breathlessness assessment, but its psychometric properties have not been tested in lung cancer. To demonstrate the psychometric properties of the D-12 in lung cancer patients. Baseline data from a lung cancer feasibility trial were adopted for this analysis. D-12 and a series of patient-reported tools including five Numeric Rating Scales (NRS), the Hospital Anxiety and Depression Scale (HADS) and the Lung Cancer Symptom Scale (LCSS) were employed for the psychometric assessment. Spearman's correlation coefficients (rs) were used to estimate the convergent validity of the D-12 with the NRS, HADS and LCSS. Exploratory factor analysis was performed to examine construct validity. Reliability was tested by Cronbach's alpha and item-to-total correlations. D-12 score difference between patients with or without anxiety, depression and COPD was explored to identify its discriminate performance. One hundred and one lung cancer patients were included. There were significantly positive correlations between the D-12 and the HADS, LCSS, and NRS scales measuring the breathlessness severity and its associated affective distress. Factor analysis clearly identified two components (physical and emotional) of the D-12. Cronbach's alpha for D-12 total, physical and emotional subscales was 0.95, 0.92 and 0.94, respectively. Patients with anxiety or depression demonstrated significantly higher D-12 scores than those without it, and patients with COPD reported significantly more severe breathlessness than those without COPD. The D-12 is a valid and reliable self-reported questionnaire for use in breathlessness assessment in lung cancer patients.

Twitter Demographics

The data shown below were collected from the profiles of 5 tweeters who shared this research output. Click here to find out more about how the information was compiled.

Mendeley readers

The data shown below were compiled from readership statistics for 50 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 50 100%

Demographic breakdown

Readers by professional status Count As %
Student > Master 11 22%
Student > Bachelor 7 14%
Researcher 5 10%
Other 5 10%
Student > Postgraduate 3 6%
Other 10 20%
Unknown 9 18%
Readers by discipline Count As %
Nursing and Health Professions 13 26%
Medicine and Dentistry 13 26%
Social Sciences 2 4%
Agricultural and Biological Sciences 2 4%
Psychology 2 4%
Other 5 10%
Unknown 13 26%

Attention Score in Context

This research output has an Altmetric Attention Score of 4. 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 12 April 2017.
All research outputs
#4,297,733
of 14,355,539 outputs
Outputs from Journal of Pain & Symptom Management
#1,066
of 2,556 outputs
Outputs of similar age
#95,480
of 264,449 outputs
Outputs of similar age from Journal of Pain & Symptom Management
#24
of 41 outputs
Altmetric has tracked 14,355,539 research outputs across all sources so far. This one has received more attention than most of these and is in the 69th percentile.
So far Altmetric has tracked 2,556 research outputs from this source. They typically receive more attention than average, with a mean Attention Score of 8.3. This one has gotten more attention than average, scoring higher than 58% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 264,449 tracked outputs that were published within six weeks on either side of this one in any source. This one has gotten more attention than average, scoring higher than 63% of its contemporaries.
We're also able to compare this research output to 41 others from the same source and published within six weeks on either side of this one. This one is in the 41st percentile – i.e., 41% of its contemporaries scored the same or lower than it.