Everything the Spanish National Activity Registry publishes about SOMDEX between 2011 and 2022: 8 years with data. Each year carries its own attribution, because each year is a separate publication of the registry.
Volume first
Activity comes before results on purpose: a high percentage over few cycles does not mean what the same percentage over many cycles means. The registry publishes cycles as bands and that is how we show them, never reduced to a single figure; transfers are an exact count.
Transfers recorded per year — IVF/ICSI with own oocytesSee this chart’s data
Transfers recorded per year — IVF/ICSI with own oocytes
Year
Value
2011
41
2014
36
2015
35
2016
44
2017
44
2018
56
Transfers recorded per year — Egg donationSee this chart’s data
Transfers recorded per year — Egg donation
Year
Value
2011
9
2014
25
2015
22
2016
29
2017
27
2018
17
Results, year by year
Each band is the interval the registry published that year: the floor and the ceiling of the estimate, not a point. There is no line joining the years, and that is deliberate — joining the centres of successive intervals would assert a trend the data does not support.
IVF/ICSI with own oocytes · Under 35
Fresh embryos
Frozen embryos
See this chart’s data
IVF/ICSI with own oocytes · Under 35
Year
Fresh embryos
Frozen embryos
2011
9.6 – 70.4%
100 – 100%
2014
0 – 67.4%
53.5 – 100%
2015
0 – 100%
0 – 49.4%
2016
100 – 100%
26.7 – 80.9%
2017
—
31.2 – 83.1%
2018
—
43.1 – 81.9%
IVF/ICSI with own oocytes · Between 35 and 39
Fresh embryos
Frozen embryos
See this chart’s data
IVF/ICSI with own oocytes · Between 35 and 39
Year
Fresh embryos
Frozen embryos
2011
11 – 47.4%
11 – 47.4%
2014
5.7 – 55.9%
—
2015
0 – 41%
4 – 71%
2016
—
0 – 40.2%
2017
—
3 – 41.4%
2018
100 – 100%
9.9 – 50.1%
IVF/ICSI with own oocytes · Over 40
Fresh embryos
Frozen embryos
See this chart’s data
IVF/ICSI with own oocytes · Over 40
Year
Fresh embryos
Frozen embryos
2011
0 – 0%
0 – 0%
2014
0 – 40.2%
—
2015
0 – 86.7%
0 – 100%
2016
0 – 100%
0 – 49.4%
2017
0 – 67.4%
—
2018
0 – 82.9%
0 – 55.1%
Egg donation · Under 35
Fresh embryos
Frozen embryos
See this chart’s data
Egg donation · Under 35
Year
Fresh embryos
Frozen embryos
2011
0 – 0%
0 – 0%
2017
—
100 – 100%
2018
—
100 – 100%
Egg donation · Between 35 and 39
Fresh embryos
Frozen embryos
See this chart’s data
Egg donation · Between 35 and 39
Year
Fresh embryos
Frozen embryos
2011
0 – 55.1%
100 – 100%
2014
0 – 67.4%
—
2015
—
100 – 100%
2016
—
100 – 100%
2017
13.3 – 100%
100 – 100%
2018
100 – 100%
—
Egg donation · Over 40
Fresh embryos
Frozen embryos
See this chart’s data
Egg donation · Over 40
Year
Fresh embryos
Frozen embryos
2011
19 – 81%
71.4 – 100%
2014
46.4 – 99%
—
2015
0 – 55%
0.5 – 49.5%
2016
8.5 – 54%
16 – 74.9%
2017
1.6 – 58.4%
0.5 – 49.5%
2018
0 – 82.9%
0 – 35.4%
AIH — artificial insemination (partner’s sperm) · Under 40See this chart’s data
AIH — artificial insemination (partner’s sperm) · Under 40
Year
Under 40
2011
8.5 – 54%
2014
0 – 32.2%
AIH — artificial insemination (partner’s sperm) · Under 35See this chart’s data
AIH — artificial insemination (partner’s sperm) · Under 35
Year
Under 35
2021
100 – 100%
2022
0 – 100%
AIH — artificial insemination (partner’s sperm) · Between 35 and 39See this chart’s data
AIH — artificial insemination (partner’s sperm) · Between 35 and 39
Year
Between 35 and 39
2015
0 – 49.4%
2017
13.3 – 100%
2021
0 – 86.7%
AID — artificial insemination (donor sperm) · Under 40See this chart’s data
AID — artificial insemination (donor sperm) · Under 40
Year
Under 40
2011
0 – 0%
2014
3.8 – 46.2%
AID — artificial insemination (donor sperm) · Under 35See this chart’s data
AID — artificial insemination (donor sperm) · Under 35
Year
Under 35
2015
0 – 100%
2018
100 – 100%
AID — artificial insemination (donor sperm) · Between 35 and 39See this chart’s data
AID — artificial insemination (donor sperm) · Between 35 and 39
Year
Between 35 and 39
2015
0 – 100%
2018
0 – 55.1%
Year-by-year table
The table is the exact and complete reading: everything in the charts, and more. Each row cites the wording the registry requires for that year.
Year
Name in the registry
Transfers
Pregnancy per transfer (under 35)
Pregnancy per cycle (insemination)
Attribution
2011
SOMDEX Dr. Santiago Dexeus
50
9.6 – 70.4%
8.5 – 54%
Registro Nacional de Actividad 2011-Registro SEF
2012
No data
2013
No data
2014
SOMDEX Dr. Santiago Dexeus
61
0 – 67.4%
0 – 32.2%
Registro Nacional de Actividad 2014-Registro SEF
2015
SOMDEX Dr. Santiago Dexeus
57
0 – 100%
0 – 49.4%
Registro Nacional de Actividad 2015-Registro SEF
2016
SOMDEX Dr. Santiago Dexeus
73
100 – 100%
No data
Registro Nacional de Actividad 2016-Registro SEF
2017
SOMDEX Dr. Santiago Dexeus
71
No data
13.3 – 100%
Registro Nacional de Actividad 2017-Registro SEF
2018
SOMDEX Dr. Santiago Dexeus
73
No data
100 – 100%
Registro Nacional de Actividad 2018-Registro SEF
2019
No data
2020
No data
2021
SOMDEX
No data
No data
100 – 100%
Registro Nacional de Actividad 2021-Registro SEF
2022
SOMDEX
No data
No data
0 – 100%
Registro Nacional de Actividad 2022-Registro SEF
Gaps in the series, and how to read them
The registry’s province-by-province census returns empty for 2009 and 2010, even though the individual profiles for those years do exist and have been recovered one by one. A centre missing from a given year means the registry publishes no profile for it that year — not that it closed.
The registry’s template changed schema in 2014 and again in 2015: up to 2013, cycles, implantation and transfers are published without separating fresh from frozen embryos, and insemination is published for a single age band (“under 40”). That is why some years carry fewer series than others: it is what the source published, not a missing figure.
And most important: a change from one year to the next is not, on its own, an improvement or a decline. The patient mix changes, selection criteria change and, at small volumes, chance changes too. Wide intervals are precisely the signal that the exact number cannot be trusted.
