Everything the Spanish National Activity Registry publishes about Hospital La Paz between 2009 and 2023: 15 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
2009
375
2010
319
2011
278
2012
405
2013
407
2014
382
2015
451
2016
358
2017
376
2018
392
2019
513
2020
455
2021
590
2022
536
2023
627
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
2009
28.1 – 41.1%
31.7 – 45%
2010
34.1 – 49.9%
39.1 – 55.1%
2011
38.7 – 57.6%
43.2 – 62%
2012
39.9 – 58.3%
46.7 – 64.3%
2013
34 – 52.5%
38.5 – 56.6%
2014
34.9 – 54.2%
10.3 – 35.1%
2015
34.6 – 52.2%
1.6 – 17.6%
2016
24.8 – 44.1%
14.9 – 37.7%
2017
34 – 59.3%
60.4 – 81%
2018
28.7 – 59.1%
34.5 – 53.8%
2019
32.1 – 55.2%
41.1 – 58.1%
2020
23.2 – 66.8%
46 – 61.5%
2021
23.1 – 88%
34.2 – 47.8%
2022
28.9 – 100%
43 – 57.5%
2023
0 – 82.9%
44.3 – 57.5%
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
2009
34 – 48.5%
37.2 – 51.8%
2010
18.8 – 31.7%
24.1 – 37.8%
2011
20.5 – 33.8%
26.3 – 40.4%
2012
26 – 41.1%
26.5 – 40.9%
2013
34.3 – 48.6%
37.1 – 51.1%
2014
38.2 – 53.7%
8.2 – 28.9%
2015
40.8 – 55.3%
6.8 – 24.9%
2016
19.9 – 34.7%
6.4 – 28.3%
2017
24 – 41%
19.3 – 36.5%
2018
21.1 – 42%
27.4 – 42.1%
2019
34.3 – 53.3%
34.2 – 48.4%
2020
25.3 – 51%
39.8 – 53.7%
2021
25.7 – 53.4%
32.1 – 43.2%
2022
19.4 – 53.9%
39.5 – 51.2%
2023
21.5 – 67.4%
34.6 – 45%
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
2009
4.9 – 52.2%
4.9 – 52.2%
2010
4.9 – 52.2%
11.6 – 62.2%
2011
0 – 40.2%
1.9 – 44.7%
2012
0 – 28.7%
0 – 24.3%
2013
12.6 – 58%
12.6 – 58%
2014
5.6 – 42%
—
2015
11.6 – 49.2%
0 – 28.6%
2016
0 – 27.1%
0 – 71.1%
2017
13.8 – 69.6%
4 – 71%
2018
—
4 – 71%
2019
0 – 55%
6.7 – 60%
2020
0 – 46.5%
9.5 – 57.2%
2021
15.4 – 84.6%
20 – 52.8%
2022
13.3 – 100%
20.4 – 51.8%
2023
100 – 100%
19.6 – 48.7%
Egg donation · Under 35
Fresh embryos
Frozen embryos
See this chart’s data
Egg donation · Under 35
Year
Fresh embryos
Frozen embryos
2009
0 – 0%
0 – 0%
2010
0 – 0%
0 – 0%
2011
0 – 0%
0 – 0%
2012
0 – 0%
0 – 0%
2013
0 – 0%
0 – 0%
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
2009
0 – 0%
0 – 0%
2010
0 – 0%
0 – 0%
2011
0 – 0%
0 – 0%
2012
0 – 0%
0 – 0%
2013
0 – 0%
0 – 0%
Egg donation · Over 40
Fresh embryos
Frozen embryos
See this chart’s data
Egg donation · Over 40
Year
Fresh embryos
Frozen embryos
2009
0 – 0%
0 – 0%
2010
0 – 0%
0 – 0%
2011
0 – 0%
0 – 0%
2012
0 – 0%
0 – 0%
2013
0 – 0%
0 – 0%
AIH — artificial insemination (partner’s sperm) · Under 40See this chart’s data
AIH — artificial insemination (partner’s sperm) · Under 40
Year
Under 40
2009
4.3 – 8.9%
2010
5.8 – 10.9%
2011
6.5 – 11.4%
2012
7.1 – 12.2%
2013
0 – 0%
2014
4.9 – 10.7%
AIH — artificial insemination (partner’s sperm) · Under 35See this chart’s data
AIH — artificial insemination (partner’s sperm) · Under 35
Year
Under 35
2015
3.9 – 11.3%
2016
3 – 9.6%
2017
4.8 – 11.7%
2018
7.4 – 16.6%
2019
4.3 – 12.8%
2020
7.2 – 17.6%
2021
6.2 – 15.5%
2022
4.1 – 15.9%
2023
1.5 – 11.7%
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
2.2 – 11%
2016
2 – 8.1%
2017
5.1 – 13.9%
2018
6.4 – 16.7%
2019
6.3 – 15.1%
2020
5.1 – 16.7%
2021
6.3 – 16.6%
2022
7.7 – 19.2%
2023
5 – 20.7%
AID — artificial insemination (donor sperm) · Under 40See this chart’s data
AID — artificial insemination (donor sperm) · Under 40
Year
Under 40
2009
3.8 – 21.2%
2010
3.8 – 21.2%
2011
2.5 – 24.5%
2012
0.6 – 18.4%
2013
0 – 0%
2014
0.6 – 18%
AID — artificial insemination (donor sperm) · Under 35See this chart’s data
AID — artificial insemination (donor sperm) · Under 35
Year
Under 35
2016
0 – 19.4%
2017
2.5 – 24.5%
2018
3.5 – 23.8%
2019
7.2 – 26.1%
2020
7.2 – 30.9%
2021
9.1 – 31.7%
2022
16 – 46.8%
2023
6.2 – 22.8%
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 – 40.2%
2016
0 – 24.3%
2017
2.3 – 22.7%
2018
2 – 21.2%
2019
6.9 – 27.1%
2020
10.1 – 29.3%
2021
12.5 – 25.7%
2022
9.1 – 19.8%
2023
6 – 16.9%
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
2009
Hospital La Paz
100-500
375
28.1 – 41.1%
4.3 – 8.9%
Registro Nacional de Actividad 2009-Registro SEF
2010
Hospital La Paz
100-500
319
34.1 – 49.9%
5.8 – 10.9%
Registro Nacional de Actividad 2010-Registro SEF
2011
Hospital La Paz
100-500
278
38.7 – 57.6%
6.5 – 11.4%
Registro Nacional de Actividad 2011-Registro SEF
2012
Hospital La Paz
100-500
405
39.9 – 58.3%
7.1 – 12.2%
Registro Nacional de Actividad 2012-Registro SEF
2013
Hospital La Paz
100-500
407
34 – 52.5%
0 – 0%
Registro Nacional de Actividad 2013-Registro SEF
2014
Hospital La Paz
100-500
382
34.9 – 54.2%
4.9 – 10.7%
Registro Nacional de Actividad 2014-Registro SEF
2015
Hospital La Paz
100-500
451
34.6 – 52.2%
3.9 – 11.3%
Registro Nacional de Actividad 2015-Registro SEF
2016
Hospital La Paz
100-500
358
24.8 – 44.1%
3 – 9.6%
Registro Nacional de Actividad 2016-Registro SEF
2017
Hospital La Paz
100-500
376
34 – 59.3%
4.8 – 11.7%
Registro Nacional de Actividad 2017-Registro SEF
2018
Hospital La Paz
100-500
392
28.7 – 59.1%
7.4 – 16.6%
Registro Nacional de Actividad 2018-Registro SEF
2019
Hospital La Paz
> 500 · 100-500
513
32.1 – 55.2%
4.3 – 12.8%
Registro Nacional de Actividad 2019-Registro SEF
2020
Hospital La Paz
> 500 · 100-500
455
23.2 – 66.8%
7.2 – 17.6%
Registro Nacional de Actividad 2020-Registro SEF
2021
Hospital La Paz
> 500
590
23.1 – 88%
6.2 – 15.5%
Registro Nacional de Actividad 2021-Registro SEF
2022
Hospital La Paz
> 500
536
28.9 – 100%
4.1 – 15.9%
Registro Nacional de Actividad 2022-Registro SEF
2023
Hospital La Paz
> 500
627
0 – 82.9%
1.5 – 11.7%
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.
