| Title |
Embryo wastage rates remain high in assisted reproductive technology (ART): a look at the trends from 2004–2013 in the USA
|
|---|---|
| Published in |
Journal of Assisted Reproduction and Genetics, December 2016
|
| DOI | 10.1007/s10815-016-0858-2 |
| Pubmed ID | |
| Authors |
Sanaz Ghazal, Pasquale Patrizio |
| Abstract |
This work examined the trend in "embryo wastage" rates after ART in USA and its relationship to the number of embryos transferred, live born infants delivered across patient age, and the yearly percentage of embryos wasted. The data were obtained from the US-clinics SART databank for the years 2004-2013. A total of 1,808,082 non-donor embryos were transferred in 748,394 fresh cycles resulting in 358,214 liveborn. During the years of analysis, the mean number of embryos transferred has progressively decreased leading to an overall significant decrease in Embryo Wastage rates (83.2 to 76.5%, p < 0.001) while the percentage of transfers leading to a live born increased (24.8 to 27.8%, p = 0.002). Embryo Wastage negatively correlated with percentage of transfers resulting in live birth (p = 0.001), and the average number of embryos transferred positively correlated with the percentage of embryos wasted (p < 0.001). The overwhelming majority of embryos transferred still do not result into a live birth confirming that only few embryos per ART cycle are competent. The overall "Embryo Wastage" rates have consistently decreased from a high of 90% in 1995 to a rate of 76.5% in 2013. Transferring fewer embryos particularly at the blastocyst-stage and improved methods of embryo selection may further decrease "Embryo Wastage" rates. |
X Demographics
The data shown below were collected from the profiles of 36 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 | 6% |
| Chile | 2 | 6% |
| Panama | 1 | 3% |
| Spain | 1 | 3% |
| Tuvalu | 1 | 3% |
| Netherlands | 1 | 3% |
| Colombia | 1 | 3% |
| New Zealand | 1 | 3% |
| Italy | 1 | 3% |
| Other | 1 | 3% |
| Unknown | 24 | 67% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 34 | 94% |
| Practitioners (doctors, other healthcare professionals) | 1 | 3% |
| Scientists | 1 | 3% |
Mendeley readers
The data shown below were compiled from readership statistics for 19 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 19 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Bachelor | 3 | 16% |
| Lecturer > Senior Lecturer | 2 | 11% |
| Other | 2 | 11% |
| Student > Ph. D. Student | 2 | 11% |
| Student > Master | 2 | 11% |
| Other | 2 | 11% |
| Unknown | 6 | 32% |
| Readers by discipline | Count | As % |
|---|---|---|
| Medicine and Dentistry | 5 | 26% |
| Biochemistry, Genetics and Molecular Biology | 3 | 16% |
| Agricultural and Biological Sciences | 3 | 16% |
| Engineering | 2 | 11% |
| Arts and Humanities | 1 | 5% |
| Other | 0 | 0% |
| Unknown | 5 | 26% |
Attention Score in Context
This research output has an Altmetric Attention Score of 33. 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 08 April 2024.
All research outputs
#1,220,658
of 25,768,270 outputs
Outputs from Journal of Assisted Reproduction and Genetics
#57
of 1,852 outputs
Outputs of similar age
#24,730
of 424,823 outputs
Outputs of similar age from Journal of Assisted Reproduction and Genetics
#1
of 16 outputs
Altmetric has tracked 25,768,270 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 95th percentile: it's in the top 5% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 1,852 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 6.9. This one has done particularly well, scoring higher than 96% 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 424,823 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 94% of its contemporaries.
We're also able to compare this research output to 16 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 93% of its contemporaries.