Everything the Spanish National Activity Registry publishes about IVI Zaragoza 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
214
2014
270
2015
301
2016
365
2017
147
2018
278
2019
175
2020
219
2021
389
2022
331
2023
360
Transfers recorded per year — Egg donationSee this chart’s data
Transfers recorded per year — Egg donation
Year
Value
2013
95
2014
122
2015
113
2016
177
2017
97
2018
86
2019
96
2020
126
2021
131
2022
129
2023
142
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
44.9 – 88.4%
56.1 – 80.5%
2014
46.1 – 80.6%
39.5 – 65.9%
2015
38.8 – 86.2%
42 – 64.6%
2016
25.5 – 74.5%
49.3 – 70.7%
2017
20.5 – 93.8%
32 – 63%
2018
35.2 – 84.8%
45.7 – 69.9%
2019
1.6 – 58.4%
40.2 – 64.5%
2020
—
43.3 – 69.5%
2021
21.4 – 71.9%
47 – 65.1%
2022
30.4 – 86.2%
41.9 – 65.4%
2023
23.3 – 70.8%
44.9 – 69.4%
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
21.7 – 64%
38.6 – 62.4%
2014
20.3 – 55.6%
43.8 – 62.9%
2015
32.2 – 59.8%
40.2 – 58.9%
2016
28 – 59.2%
36.6 – 51.4%
2017
16.9 – 68.8%
27.1 – 50.5%
2018
7.9 – 64.8%
40 – 57.6%
2019
39.2 – 89.4%
32.4 – 57.6%
2020
10.6 – 60.8%
40.6 – 60.5%
2021
31.8 – 72.6%
43.1 – 58.9%
2022
16.9 – 68.8%
43.8 – 59.4%
2023
21.7 – 64%
36.6 – 52.3%
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
3.8 – 46.2%
7.7 – 28.7%
2014
3.4 – 43.7%
19.2 – 51.4%
2015
3.4 – 43.7%
19.2 – 51.4%
2016
1.6 – 58.4%
32.1 – 61.2%
2017
—
10.7 – 52.5%
2018
—
21.5 – 46.3%
2019
—
17.3 – 58.9%
2020
—
36.8 – 65.4%
2021
0 – 67.4%
41.5 – 63.6%
2022
0 – 62%
44.1 – 67%
2023
0 – 46.5%
35.2 – 54.8%
Egg donation · Under 35
Fresh embryos
Frozen embryos
See this chart’s data
Egg donation · Under 35
Year
Fresh embryos
Frozen embryos
2013
100 – 100%
100 – 100%
2014
100 – 100%
0 – 86.7%
2015
100 – 100%
100 – 100%
2016
13.3 – 100%
0 – 71.1%
2017
—
100 – 100%
2018
44.9 – 100%
0 – 55.1%
2019
100 – 100%
17.1 – 100%
2020
44.9 – 100%
100 – 100%
2021
1 – 99%
0 – 55%
2022
100 – 100%
12 – 76.9%
2023
53.5 – 100%
0 – 55.1%
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
35.1 – 88%
100 – 100%
2014
4 – 71%
11 – 47.4%
2015
35.2 – 84.8%
17.3 – 58.9%
2016
31.2 – 83.1%
40.7 – 74.4%
2017
40 – 93.3%
21.4 – 71.9%
2018
100 – 100%
15.4 – 84.6%
2019
54 – 99.8%
13.8 – 69.6%
2020
73.9 – 100%
20.4 – 61.5%
2021
23.1 – 88%
23.3 – 70.8%
2022
50.5 – 99.5%
21.4 – 71.9%
2023
21.7 – 78.3%
26.3 – 69%
Egg donation · Over 40
Fresh embryos
Frozen embryos
See this chart’s data
Egg donation · Over 40
Year
Fresh embryos
Frozen embryos
2013
43.5 – 83.7%
94 – 100%
2014
36 – 78.3%
35.5 – 59.8%
2015
44.1 – 94.3%
31.2 – 55.9%
2016
15.3 – 54.2%
29.1 – 48.4%
2017
28.1 – 71.9%
39.1 – 67%
2018
42.8 – 80.2%
40.7 – 73.5%
2019
38.6 – 83.6%
40 – 68.7%
2020
29.1 – 70.9%
40.2 – 64.5%
2021
33.5 – 69.9%
37.8 – 62.2%
2022
46.5 – 82%
27.1 – 51.6%
2023
39.2 – 72.6%
36.2 – 60.7%
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 – 0%
AIH — artificial insemination (partner’s sperm) · Under 35See this chart’s data
AIH — artificial insemination (partner’s sperm) · Under 35
Year
Under 35
2016
0 – 62%
2017
13.3 – 100%
2018
1 – 53.6%
2019
3.8 – 46.2%
2020
0 – 26.8%
2021
0 – 20.6%
2022
0 – 20.6%
2023
0 – 37.9%
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 – 35%
2016
0 – 62%
2018
0 – 62%
2019
4 – 71%
2021
0 – 12.2%
2023
0 – 67.4%
AID — artificial insemination (donor sperm) · Under 40See this chart’s data
AID — artificial insemination (donor sperm) · Under 40
Year
Under 40
2013
12.4 – 51.3%
2014
10.7 – 52.5%
AID — artificial insemination (donor sperm) · Under 35See this chart’s data
AID — artificial insemination (donor sperm) · Under 35
Year
Under 35
2015
10 – 90%
2016
0 – 35.4%
2017
0.5 – 49.5%
2018
28.9 – 100%
2019
9.5 – 57.2%
2020
0 – 24%
2021
0 – 37.9%
2022
4.3 – 49%
2023
0 – 31.6%
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 – 20.2%
2016
3.4 – 43.7%
2017
4.3 – 49%
2018
0 – 37.8%
2019
0 – 82.9%
2020
0.2 – 46%
2021
0 – 31.6%
2022
0 – 28%
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
IVI Zaragoza
100-500
309
44.9 – 88.4%
0 – 0%
Registro Nacional de Actividad 2013-Registro SEF
2014
IVI Zaragoza
100-500
392
46.1 – 80.6%
10.7 – 52.5%
Registro Nacional de Actividad 2014-Registro SEF
2015
IVI Zaragoza
100-500
414
38.8 – 86.2%
0 – 35%
Registro Nacional de Actividad 2015-Registro SEF
2016
IVI Zaragoza
100-500
542
25.5 – 74.5%
0 – 62%
Registro Nacional de Actividad 2016-Registro SEF
2017
IVI Zaragoza
100-500
244
20.5 – 93.8%
13.3 – 100%
Registro Nacional de Actividad 2017-Registro SEF
2018
IVI Zaragoza
100-500
364
35.2 – 84.8%
1 – 53.6%
Registro Nacional de Actividad 2018-Registro SEF
2019
IVI Zaragoza
100-500
271
1.6 – 58.4%
3.8 – 46.2%
Registro Nacional de Actividad 2019-Registro SEF
2020
IVI Zaragoza
100-500
345
No data
0 – 26.8%
Registro Nacional de Actividad 2020-Registro SEF
2021
IVI Zaragoza
100-500
520
21.4 – 71.9%
0 – 20.6%
Registro Nacional de Actividad 2021-Registro SEF
2022
IVI Zaragoza
100-500
460
30.4 – 86.2%
0 – 20.6%
Registro Nacional de Actividad 2022-Registro SEF
2023
IVI Zaragoza
100-500
502
23.3 – 70.8%
0 – 37.9%
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.
