Everything the Spanish National Activity Registry publishes about Instituto Avantia de Fertilidad between 2013 and 2023: 11 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
2013
93
2014
129
2015
168
2016
158
2017
140
2018
162
2019
168
2020
169
2021
207
2022
186
2023
164
Transfers recorded per year — Egg donationSee this chart’s data
Transfers recorded per year — Egg donation
Year
Value
2013
78
2014
62
2015
78
2016
99
2017
70
2018
59
2019
91
2020
27
2021
8
2023
3
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
2013
12.4 – 51.3%
33.1 – 70.1%
2014
31.9 – 80.6%
16.3 – 56.5%
2015
17.2 – 54.8%
13.7 – 50.3%
2016
38.5 – 79.6%
30.1 – 66.5%
2017
35.1 – 88%
30.1 – 66.5%
2018
23.2 – 66.8%
30.1 – 66.5%
2019
31.2 – 83.1%
21.7 – 64%
2020
0 – 41%
41 – 70.1%
2021
7.1 – 48.5%
29.1 – 53.4%
2022
4.9 – 52.2%
34.1 – 65.9%
2023
3.4 – 43.7%
33.2 – 66.8%
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
2013
15.2 – 58.5%
29.2 – 68.4%
2014
17.3 – 47.5%
5.6 – 42%
2015
26.4 – 57.8%
18 – 47%
2016
30.8 – 66%
22.1 – 50.6%
2017
32.4 – 71.6%
10.9 – 36.7%
2018
13.6 – 43.5%
25.7 – 54.3%
2019
7.3 – 40.7%
10.7 – 32.2%
2020
25.7 – 63.2%
23.6 – 51.9%
2021
14.6 – 46%
31 – 56.7%
2022
23.3 – 61.3%
32.4 – 57.6%
2023
8.7 – 45.9%
27 – 53.7%
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
2013
0 – 40.2%
8.7 – 47.1%
2014
14.1 – 55.9%
5.7 – 55.9%
2015
10.4 – 41.2%
0 – 49.4%
2016
0 – 25.6%
0 – 42.9%
2017
4.3 – 49%
8.5 – 54%
2018
3.4 – 43.7%
0 – 28.7%
2019
0 – 12.7%
17.2 – 51.8%
2020
0 – 27.1%
4.6 – 37.1%
2021
0 – 24%
0 – 25.7%
2022
0 – 42.9%
14.1 – 44.7%
2023
—
2.1 – 34.3%
Egg donation · Under 35
Fresh embryos
Frozen embryos
See this chart’s data
Egg donation · Under 35
Year
Fresh embryos
Frozen embryos
2013
0 – 55.1%
0 – 82.9%
2014
17.1 – 100%
0 – 100%
2015
—
0 – 55.1%
2016
10 – 90%
7.9 – 64.8%
2017
—
0 – 86.7%
2018
100 – 100%
0 – 100%
2019
32.6 – 100%
0 – 86.7%
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
2013
24.9 – 69.8%
62.4 – 96.8%
2014
44.1 – 94.3%
—
2015
35.1 – 88%
5.7 – 55.9%
2016
21.7 – 78.3%
0 – 28.6%
2017
40 – 93.3%
0 – 71.1%
2018
35.2 – 92.1%
0 – 55%
2019
15.4 – 84.6%
0 – 49.4%
2021
—
0 – 86.7%
Egg donation · Over 40
Fresh embryos
Frozen embryos
See this chart’s data
Egg donation · Over 40
Year
Fresh embryos
Frozen embryos
2013
29.1 – 70.9%
54.1 – 91.3%
2014
27.4 – 68.2%
31.9 – 80.6%
2015
31.8 – 72.6%
19.2 – 59.1%
2016
42.3 – 75.4%
9.9 – 44%
2017
36.5 – 75.5%
20.4 – 61.5%
2018
19.4 – 68.1%
17.3 – 58.9%
2019
16.3 – 52.9%
13.3 – 40.4%
2020
32.6 – 100%
15.2 – 58.5%
2021
—
17.1 – 100%
2023
—
13.3 – 100%
AIH — artificial insemination (partner’s sperm) · Under 40See this chart’s data
AIH — artificial insemination (partner’s sperm) · Under 40
Year
Under 40
2013
0 – 21.4%
2014
0 – 18.4%
AIH — artificial insemination (partner’s sperm) · Under 35See this chart’s data
AIH — artificial insemination (partner’s sperm) · Under 35
Year
Under 35
2015
0 – 37.9%
2017
0 – 31.6%
2019
0 – 62%
2020
0 – 44.8%
2021
0 – 24%
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 – 18.1%
2016
0 – 24%
2017
0 – 41%
2018
0 – 49.4%
2019
1 – 99%
2020
0 – 46.5%
2022
0 – 86.7%
AID — artificial insemination (donor sperm) · Under 40See this chart’s data
AID — artificial insemination (donor sperm) · Under 40
Year
Under 40
2013
1.2 – 25.5%
2014
1.8 – 31.6%
AID — artificial insemination (donor sperm) · Under 35See this chart’s data
AID — artificial insemination (donor sperm) · Under 35
Year
Under 35
2015
19 – 81%
2016
2.5 – 64.1%
2017
4.9 – 52.2%
2018
6.2 – 79.5%
2021
0 – 46.5%
2023
0 – 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
2.7 – 39.4%
2016
16.4 – 61.4%
2018
4.3 – 49%
2019
0 – 55%
2021
0 – 55%
2022
0 – 46.5%
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
Cycles started
Transfers
Pregnancy per transfer (under 35)
Pregnancy per cycle (insemination)
Attribution
2013
Instituto Avantia de Fertilidad
No data
171
12.4 – 51.3%
0 – 21.4%
Registro Nacional de Actividad 2013-Registro SEF
2014
Instituto Avantia de Fertilidad
100-500
191
31.9 – 80.6%
0 – 18.4%
Registro Nacional de Actividad 2014-Registro SEF
2015
Instituto Avantia de Fertilidad
100-500
246
17.2 – 54.8%
0 – 37.9%
Registro Nacional de Actividad 2015-Registro SEF
2016
Instituto Avantia de Fertilidad
100-500
257
38.5 – 79.6%
0 – 24%
Registro Nacional de Actividad 2016-Registro SEF
2017
Instituto Avantia de Fertilidad
100-500
210
35.1 – 88%
0 – 31.6%
Registro Nacional de Actividad 2017-Registro SEF
2018
Instituto Avantia de Fertilidad
100-500
221
23.2 – 66.8%
0 – 49.4%
Registro Nacional de Actividad 2018-Registro SEF
2019
Instituto Avantia de Fertilidad
100-500
259
31.2 – 83.1%
0 – 62%
Registro Nacional de Actividad 2019-Registro SEF
2020
Instituto Avantia de Fertilidad
100-500
196
0 – 41%
0 – 44.8%
Registro Nacional de Actividad 2020-Registro SEF
2021
Instituto Avantia de Fertilidad
100-500
215
7.1 – 48.5%
0 – 24%
Registro Nacional de Actividad 2021-Registro SEF
2022
Instituto Avantia de Fertilidad
100-500
186
4.9 – 52.2%
0 – 86.7%
Registro Nacional de Actividad 2022-Registro SEF
2023
Instituto Avantia de Fertilidad
100-500
167
3.4 – 43.7%
0 – 100%
Registro Nacional de Actividad 2023-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.
