| Title |
Associations Between the 2nd to 4th Digit Ratio and Autism Spectrum Disorder in Population-Based Samples of Boys and Girls: Findings from the Study to Explore Early Development
|
|---|---|
| Published in |
Journal of Autism and Developmental Disorders, February 2018
|
| DOI | 10.1007/s10803-018-3495-z |
| Pubmed ID | |
| Authors |
Laura A. Schieve, Lin Tian, Nicole Dowling, Lisa Croen, Julie Hoover-Fong, Aimee Alexander, Stuart K. Shapira |
| Abstract |
The ratio of the index (2nd) finger to ring (4th) finger lengths (2D:4D) is a proxy for fetal testosterone and estradiol. Studies suggesting 2D:4D is inversely associated with autism spectrum disorder (ASD) in males were limited by lack of confounder and subgroup assessments. Studies of females are sparse. We examined associations between ASD and 2D:4D among children in the Study to Explore Early Development; we considered case subgroups and numerous potential demographic and maternal-perinatal health confounders. We observed a modest inverse association between ASD and right-hand 2D:4D in males; subgroup analyses indicated associations were limited to ASD cases with birth defects/genetic syndromes or dysmorphic features. We observed a positive association between ASD and left-hand 2D:4D in females, overall and within most case subgroups. |
X Demographics
The data shown below were collected from the profiles of 8 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 2 | 25% |
| United Kingdom | 2 | 25% |
| Canada | 1 | 13% |
| Georgia | 1 | 13% |
| Unknown | 2 | 25% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 4 | 50% |
| Scientists | 2 | 25% |
| Practitioners (doctors, other healthcare professionals) | 1 | 13% |
| Science communicators (journalists, bloggers, editors) | 1 | 13% |
Mendeley readers
The data shown below were compiled from readership statistics for 53 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 53 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Master | 7 | 13% |
| Researcher | 7 | 13% |
| Student > Ph. D. Student | 7 | 13% |
| Student > Postgraduate | 3 | 6% |
| Student > Doctoral Student | 3 | 6% |
| Other | 4 | 8% |
| Unknown | 22 | 42% |
| Readers by discipline | Count | As % |
|---|---|---|
| Psychology | 10 | 19% |
| Neuroscience | 4 | 8% |
| Nursing and Health Professions | 3 | 6% |
| Social Sciences | 3 | 6% |
| Medicine and Dentistry | 3 | 6% |
| Other | 4 | 8% |
| Unknown | 26 | 49% |
Attention Score in Context
This research output has an Altmetric Attention Score of 4. 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 19 February 2018.
All research outputs
#7,646,547
of 25,253,876 outputs
Outputs from Journal of Autism and Developmental Disorders
#2,672
of 5,437 outputs
Outputs of similar age
#157,151
of 486,790 outputs
Outputs of similar age from Journal of Autism and Developmental Disorders
#63
of 108 outputs
Altmetric has tracked 25,253,876 research outputs across all sources so far. This one has received more attention than most of these and is in the 69th percentile.
So far Altmetric has tracked 5,437 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 13.2. This one has gotten more attention than average, scoring higher than 50% 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 486,790 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 67% of its contemporaries.
We're also able to compare this research output to 108 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.