Everything the Spanish National Activity Registry publishes about CLÍNICA SERMAN between 2016 and 2019: 4 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
2016
154
2017
122
2018
112
2019
93
Transfers recorded per year — Egg donationSee this chart’s data
Transfers recorded per year — Egg donation
Year
Value
2016
57
2017
63
2018
42
2019
30
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
2016
34.1 – 65.9%
48.7 – 87.6%
2017
23.3 – 61.3%
46.5 – 86.8%
2018
47.5 – 89.3%
49.9 – 90.1%
2019
23.3 – 70.8%
51 – 95.7%
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
2016
32 – 63%
14.1 – 55.9%
2017
26.5 – 59.3%
39.2 – 89.4%
2018
36.2 – 69.7%
31 – 73.7%
2019
11.8 – 45.3%
31.2 – 83.1%
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
2016
2.7 – 39.4%
0 – 28.6%
2017
13.8 – 69.6%
47.8 – 95.1%
2018
4.9 – 52.2%
0 – 67.4%
2019
5.7 – 55.9%
0 – 82.9%
Egg donation · Under 35
Fresh embryos
Frozen embryos
See this chart’s data
Egg donation · Under 35
Year
Fresh embryos
Frozen embryos
2016
32.6 – 100%
0 – 86.7%
2017
0 – 100%
29 – 96%
2018
100 – 100%
—
2019
—
0 – 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
2016
6.2 – 79.5%
41.6 – 98.4%
2017
67.4 – 100%
46.4 – 99%
2018
13.3 – 100%
—
2019
100 – 100%
100 – 100%
Egg donation · Over 40
Fresh embryos
Frozen embryos
See this chart’s data
Egg donation · Over 40
Year
Fresh embryos
Frozen embryos
2016
35.4 – 82.2%
31.9 – 80.6%
2017
19.1 – 73.3%
21.4 – 71.9%
2018
41.6 – 98.4%
56 – 91.9%
2019
1 – 99%
46.5 – 86.8%
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 – 100%
2017
1 – 99%
2019
0 – 67.4%
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
2016
0 – 100%
AID — artificial insemination (donor sperm) · Under 35See this chart’s data
AID — artificial insemination (donor sperm) · Under 35
Year
Under 35
2016
0 – 100%
2017
13.3 – 100%
2018
10 – 90%
2019
1 – 99%
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
2016
0 – 40.2%
2018
1 – 99%
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
2016
CLÍNICA SERMAN
100-500
211
34.1 – 65.9%
0 – 100%
Registro Nacional de Actividad 2016-Registro SEF
2017
CLÍNICA SERMAN
100-500
185
23.3 – 61.3%
1 – 99%
Registro Nacional de Actividad 2017-Registro SEF
2018
CLÍNICA SERMAN
100-500
154
47.5 – 89.3%
10 – 90%
Registro Nacional de Actividad 2018-Registro SEF
2019
CLÍNICA SERMAN
100-500
123
23.3 – 70.8%
0 – 67.4%
Registro Nacional de Actividad 2019-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.
