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X Demographics
Mendeley readers
Attention Score in Context
| Title |
Hyperventilation in asthma: A validation study of the Nijmegen Questionnaire – NQ
|
|---|---|
| Published in |
Journal of Asthma, May 2014
|
| DOI | 10.3109/02770903.2014.922190 |
| Pubmed ID | |
| Authors |
Eirini P. Grammatopoulou, Emmanouil K. Skordilis, Georgios Georgoudis, Aikaterini Haniotou, Afroditi Evangelodimou, George Fildissis, Theodoros Katsoulas, Panagiotis Kalagiakos |
| Abstract |
Abstract Introduction: The Nijmegen questionnaire (NQ) has previously been used for screening the hyperventilation syndrome (HVS) in asthmatics. However, no validity study has been reported so far. Objective: To examine the validity and reliability of the NQ in asthma patients and identify the prevalence of HVS. Methods: The NQ (n = 162) was examined for translation, construct, cross-sectional and discriminant validity as well as for internal consistency and test-retest reliability. Results: Principal component analysis and exploratory factor analysis revealed a single factor solution with 11 items and 58.6% of explained variability. These 11 NQ items showed high internal consistency (Cronbach's alpha = 0.92) and test-retest reliability (IR = 0.98). Higher NQ scores were found in the following subgroups: women versus men (p < 0.01); participants with moderate versus mild asthma (p < 0.001) or uncontrolled versus controlled asthma (p < 0.001), and participants with breath-hold time (BHT) < 30 versus ≥ 30 s (p < 0.01) or end-tidal CO2 (ETCO2) ≤35 versus >35 mmHg (p < 0.001). A cut-off score of >17 discriminated the participants with regard to the presence of HVS. The NQ showed 92.73% sensitivity and 91.59% specificity. The total NQ score was found significantly correlated with ETCO2 (r = -0.68), RR (r = 0.66) and BHT (r = -0.65). The prevalence of HVS was found 34%. Conclusion: The NQ is a valid and reliable questionnaire for screening HVS in patients with stable mild-to-moderate asthma. |
X Demographics
The data shown below were collected from the profiles of 4 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Switzerland | 1 | 25% |
| Saudi Arabia | 1 | 25% |
| Unknown | 2 | 50% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 3 | 75% |
| Science communicators (journalists, bloggers, editors) | 1 | 25% |
Mendeley readers
The data shown below were compiled from readership statistics for 65 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United Kingdom | 1 | 2% |
| Spain | 1 | 2% |
| Unknown | 63 | 97% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Bachelor | 11 | 17% |
| Researcher | 8 | 12% |
| Student > Master | 7 | 11% |
| Student > Ph. D. Student | 5 | 8% |
| Student > Doctoral Student | 3 | 5% |
| Other | 10 | 15% |
| Unknown | 21 | 32% |
| Readers by discipline | Count | As % |
|---|---|---|
| Medicine and Dentistry | 22 | 34% |
| Nursing and Health Professions | 10 | 15% |
| Agricultural and Biological Sciences | 3 | 5% |
| Engineering | 2 | 3% |
| Psychology | 2 | 3% |
| Other | 3 | 5% |
| Unknown | 23 | 35% |
Attention Score in Context
This research output has an Altmetric Attention Score of 6. 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 December 2022.
All research outputs
#5,583,113
of 23,377,816 outputs
Outputs from Journal of Asthma
#411
of 2,057 outputs
Outputs of similar age
#51,314
of 228,079 outputs
Outputs of similar age from Journal of Asthma
#10
of 38 outputs
Altmetric has tracked 23,377,816 research outputs across all sources so far. Compared to these this one has done well and is in the 76th percentile: it's in the top 25% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 2,057 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 5.5. This one has done well, scoring higher than 79% 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 228,079 tracked outputs that were published within six weeks on either side of this one in any source. This one has done well, scoring higher than 77% of its contemporaries.
We're also able to compare this research output to 38 others from the same source and published within six weeks on either side of this one. This one has gotten more attention than average, scoring higher than 73% of its contemporaries.