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[Potential false-positive rate among the 'asymptomatic infected individuals' in close contacts of COVID-19 patients].

Overview of attention for article published in Zhonghua liu xing bing xue za zhi Zhonghua liuxingbingxue zazhi, March 2020
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About this Attention Score

  • In the top 5% of all research outputs scored by Altmetric
  • One of the highest-scoring outputs from this source (#1 of 458)
  • High Attention Score compared to outputs of the same age (99th percentile)
  • High Attention Score compared to outputs of the same age and source (96th percentile)

Mentioned by

news
31 news outlets
blogs
8 blogs
twitter
7348 tweeters
facebook
29 Facebook pages
video
17 video uploaders

Citations

dimensions_citation
9 Dimensions

Readers on

mendeley
337 Mendeley
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Title
[Potential false-positive rate among the 'asymptomatic infected individuals' in close contacts of COVID-19 patients].
Published in
Zhonghua liu xing bing xue za zhi Zhonghua liuxingbingxue zazhi, March 2020
DOI 10.3760/cma.j.cn112338-20200221-00144
Pubmed ID
Authors

Zhuang, G H, Shen, M W, Zeng, L X, Mi, B B, Chen, F Y, Liu, W J, Pei, L L, Qi, X, Li, C, G H Zhuang, M W Shen, L X Zeng, B B Mi, C Li, Zhuang GH, Shen MW, Zeng LX, Mi BB, Chen FY, Liu WJ, Pei LL, Qi X, Li C

Abstract

Objective: As the prevention and control of COVID-19continues to advance, the active nucleic acid test screening in the close contacts of the patients has been carrying out in many parts of China. However, the false-positive rate of positive results in the screening has not been reported up to now. But to clearify the false-positive rate during screening is important in COVID-19 control and prevention. Methods: Point values and reasonable ranges of the indicators which impact the false-positive rate of positive results were estimated based on the information available to us at present. The false-positive rate of positive results in the active screening was deduced, and univariate and multivariate-probabilistic sensitivity analyses were performed to understand the robustness of the findings. Results: When the infection rate of the close contacts and the sensitivity and specificity of reported results were taken as the point estimates, the positive predictive value of the active screening was only 19.67%, in contrast, the false-positive rate of positive results was 80.33%. The multivariate-probabilistic sensitivity analysis results supported the base-case findings, with a 75% probability for the false-positive rate of positive results over 47%. Conclusions: In the close contacts of COVID-19 patients, nearly half or even more of the 'asymptomatic infected individuals' reported in the active nucleic acid test screening might be false positives.

Twitter Demographics

The data shown below were collected from the profiles of 7,348 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 337 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 337 100%

Demographic breakdown

Readers by professional status Count As %
Researcher 60 18%
Student > Master 40 12%
Student > Ph. D. Student 33 10%
Other 30 9%
Student > Bachelor 27 8%
Other 81 24%
Unknown 66 20%
Readers by discipline Count As %
Medicine and Dentistry 77 23%
Nursing and Health Professions 21 6%
Biochemistry, Genetics and Molecular Biology 20 6%
Agricultural and Biological Sciences 17 5%
Engineering 15 4%
Other 95 28%
Unknown 92 27%

Attention Score in Context

This research output has an Altmetric Attention Score of 5217. 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 24 October 2020.
All research outputs
#260
of 16,094,382 outputs
Outputs from Zhonghua liu xing bing xue za zhi Zhonghua liuxingbingxue zazhi
#1
of 458 outputs
Outputs of similar age
#44
of 259,351 outputs
Outputs of similar age from Zhonghua liu xing bing xue za zhi Zhonghua liuxingbingxue zazhi
#1
of 30 outputs
Altmetric has tracked 16,094,382 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 99th percentile: it's in the top 5% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 458 research outputs from this source. They receive a mean Attention Score of 3.3. This one has done particularly well, scoring higher than 99% 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 259,351 tracked outputs that were published within six weeks on either side of this one in any source. This one has done particularly well, scoring higher than 99% of its contemporaries.
We're also able to compare this research output to 30 others from the same source and published within six weeks on either side of this one. This one has done particularly well, scoring higher than 96% of its contemporaries.