The data shown below were collected from the profiles of 367 X users who shared this research output. Click here to find out more about how the information was compiled.
As of 1 July 2024, you may notice a temporary increase in the numbers of X profiles with Unknown location. Click here to learn more.
You are seeing a free-to-access but limited selection of the activity Altmetric has collected about this research output.
Click here to find out more.
X Demographics
Mendeley readers
Attention Score in Context
| Title |
Factors influencing estimated effectiveness of COVID-19 vaccines in non-randomised studies
|
|---|---|
| Published in |
BMJ Evidence-Based Medicine, March 2022
|
| DOI | 10.1136/bmjebm-2021-111901 |
| Pubmed ID | |
| Authors |
John P A Ioannidis |
X Demographics
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| France | 8 | 2% |
| Netherlands | 6 | 2% |
| Canada | 6 | 2% |
| South Africa | 6 | 2% |
| Poland | 4 | 1% |
| Indonesia | 3 | <1% |
| United States | 3 | <1% |
| United Kingdom | 2 | <1% |
| Spain | 2 | <1% |
| Other | 9 | 2% |
| Unknown | 318 | 87% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 339 | 92% |
| Scientists | 13 | 4% |
| Practitioners (doctors, other healthcare professionals) | 11 | 3% |
| Science communicators (journalists, bloggers, editors) | 4 | 1% |
Mendeley readers
The data shown below were compiled from readership statistics for 46 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 46 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Bachelor | 6 | 13% |
| Researcher | 5 | 11% |
| Other | 4 | 9% |
| Student > Postgraduate | 4 | 9% |
| Lecturer | 2 | 4% |
| Other | 7 | 15% |
| Unknown | 18 | 39% |
| Readers by discipline | Count | As % |
|---|---|---|
| Medicine and Dentistry | 15 | 33% |
| Nursing and Health Professions | 2 | 4% |
| Agricultural and Biological Sciences | 2 | 4% |
| Pharmacology, Toxicology and Pharmaceutical Science | 1 | 2% |
| Biochemistry, Genetics and Molecular Biology | 1 | 2% |
| Other | 4 | 9% |
| Unknown | 21 | 46% |
Attention Score in Context
This research output has an Altmetric Attention Score of 234. 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 August 2024.
All research outputs
#172,953
of 26,557,556 outputs
Outputs from BMJ Evidence-Based Medicine
#33
of 1,479 outputs
Outputs of similar age
#5,339
of 453,645 outputs
Outputs of similar age from BMJ Evidence-Based Medicine
#2
of 18 outputs
Altmetric has tracked 26,557,556 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 1,479 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 28.1. This one has done particularly well, scoring higher than 97% 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 453,645 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 98% of its contemporaries.
We're also able to compare this research output to 18 others from the same source and published within six weeks on either side of this one. This one has done well, scoring higher than 88% of its contemporaries.