↓ Skip to main content

Dove Medical Press

Article Metrics

Accelerometer- versus questionnaire-based assessment of physical activity and their changes over time in patients with COPD

Overview of attention for article published in International Journal of Chronic Obstructive Pulmonary Disease, April 2017
Altmetric Badge

About this Attention Score

  • Average Attention Score compared to outputs of the same age

Mentioned by

twitter
2 tweeters

Citations

dimensions_citation
20 Dimensions

Readers on

mendeley
81 Mendeley
Title
Accelerometer- versus questionnaire-based assessment of physical activity and their changes over time in patients with COPD
Published in
International Journal of Chronic Obstructive Pulmonary Disease, April 2017
DOI 10.2147/copd.s130195
Pubmed ID
Authors

Noriane Sievi, Thomas Brack, Martin Brutsche, Martin Frey, Sarosh Irani, Jörg Leuppi, Robert Thurnheer, Malcolm Kohler, Christian Clarenbach

Abstract

Physical activity (PA) is an important outcome parameter in patients with COPD regarding hospitalizations and mortality. Both objective assessment by accelerometers and self-evaluation by questionnaires were used in studies investigating PA in COPD. Whether self-reported questionnaires can adequately reflect PA and its changes over time compared to objective assessments has not been thoroughly investigated in COPD. In this COPD cohort study, we evaluated whether PA measured by accelerometer and its annual changes can also be assessed by self-reported questionnaires. In 178 COPD patients with at least two assessments of PA, the agreement between objectively measured and self-reported activity was analyzed by Bland-Altman plots. Daily PA was assessed by a triaxial activity monitor over 1 week and by the self-reported German PA questionnaire 50+. Comparison between the two methods of measurement revealed no convincing agreement with a mean difference and limits of agreement (±1.96 standard deviation [SD]) of time spent in at least moderate PA (>3 metabolic equivalent of task [MET]) of -77.6 (-340.3/185.2) min/day, indicating a self-reported overestimation of PA by the questionnaire. The mean difference and limits of agreement (±1.96SD) in the annual change of PA was 1.2 min/day (-208.2/282.6 min/day), showing also a poor agreement on an individual level. Evaluation of objectively measured and self-reported PA and their annual changes revealed no agreement in patients with COPD. Therefore, the evaluated questionnaire seems not helpful for measurement of PA and its changes over time.

Twitter Demographics

The data shown below were collected from the profiles of 2 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 81 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 81 100%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 15 19%
Student > Master 14 17%
Student > Bachelor 10 12%
Researcher 8 10%
Student > Doctoral Student 5 6%
Other 13 16%
Unknown 16 20%
Readers by discipline Count As %
Medicine and Dentistry 22 27%
Nursing and Health Professions 16 20%
Sports and Recreations 6 7%
Computer Science 3 4%
Engineering 3 4%
Other 9 11%
Unknown 22 27%

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 20 September 2017.
All research outputs
#9,544,840
of 14,995,047 outputs
Outputs from International Journal of Chronic Obstructive Pulmonary Disease
#1,158
of 1,797 outputs
Outputs of similar age
#154,214
of 265,973 outputs
Outputs of similar age from International Journal of Chronic Obstructive Pulmonary Disease
#40
of 64 outputs
Altmetric has tracked 14,995,047 research outputs across all sources so far. This one is in the 23rd percentile – i.e., 23% of other outputs scored the same or lower than it.
So far Altmetric has tracked 1,797 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 5.3. This one is in the 27th percentile – i.e., 27% of its peers scored the same or lower than it.
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 265,973 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 32nd percentile – i.e., 32% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 64 others from the same source and published within six weeks on either side of this one. This one is in the 25th percentile – i.e., 25% of its contemporaries scored the same or lower than it.