| Title |
Second trimester serum tests for Down's Syndrome screening
|
|---|---|
| Published in |
Cochrane database of systematic reviews, June 2012
|
| DOI | 10.1002/14651858.cd009925 |
| Pubmed ID | |
| Authors |
S Kate Alldred, Jonathan J Deeks, Boliang Guo, James P Neilson, Zarko Alfirevic |
| Abstract |
Down's syndrome occurs when a person has three copies of chromosome 21 - or the specific area of chromosome 21 implicated in causing Down's syndrome - rather than two. It is the commonest congenital cause of mental retardation. Noninvasive screening based on biochemical analysis of maternal serum or urine, or fetal ultrasound measurements, allows estimates of the risk of a pregnancy being affected and provides information to guide decisions about definitive testing. |
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.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 1 | 50% |
| Unknown | 1 | 50% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 2 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 210 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 3 | 1% |
| United Kingdom | 2 | <1% |
| Singapore | 1 | <1% |
| South Africa | 1 | <1% |
| Unknown | 203 | 97% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Master | 33 | 16% |
| Student > Bachelor | 30 | 14% |
| Researcher | 24 | 11% |
| Student > Ph. D. Student | 14 | 7% |
| Student > Postgraduate | 10 | 5% |
| Other | 33 | 16% |
| Unknown | 66 | 31% |
| Readers by discipline | Count | As % |
|---|---|---|
| Medicine and Dentistry | 71 | 34% |
| Nursing and Health Professions | 15 | 7% |
| Agricultural and Biological Sciences | 11 | 5% |
| Social Sciences | 10 | 5% |
| Psychology | 8 | 4% |
| Other | 19 | 9% |
| Unknown | 76 | 36% |
Attention Score in Context
This research output has an Altmetric Attention Score of 5. 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 13 November 2021.
All research outputs
#6,246,238
of 22,668,244 outputs
Outputs from Cochrane database of systematic reviews
#8,070
of 12,296 outputs
Outputs of similar age
#44,475
of 167,239 outputs
Outputs of similar age from Cochrane database of systematic reviews
#97
of 170 outputs
Altmetric has tracked 22,668,244 research outputs across all sources so far. This one has received more attention than most of these and is in the 72nd percentile.
So far Altmetric has tracked 12,296 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 30.3. This one is in the 33rd percentile – i.e., 33% 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 167,239 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 73% of its contemporaries.
We're also able to compare this research output to 170 others from the same source and published within six weeks on either side of this one. This one is in the 42nd percentile – i.e., 42% of its contemporaries scored the same or lower than it.