Resultados de inseminación artificial (conyugales y de donante) del Registro Nacional de Actividad-Registro de la Sociedad Española de Fertilidad. Años 2014 y 2015

Introduction

This document analyses the outcomes due to the legislative changes in 2014 and 2015, which introduced mandatory participation in the Spanish Fertility Society register of artificial insemination, which is officially taken as the National Register of assisted human reproduction activity, henceforth RNA-Register SEF.

Material and methods

The RNA- Register SEF data on conjugal and donor insemination (AI-C and AI-D, respectively) for 2014 and 2015 are analysed and compared with the data for previous years. Participation was mandatory for Spanish assisted reproduction centres. Aggregate data were compiled for each centre, and in situ monitoring was carried out on the data provided from over 15% of them. More than 75% of the centres authorised by the Spanish Ministry of Health, Social Services and Equality supplied data during this period. In 2014, a total of 40,177 cycles were analysed (28,204 cycles of AI-C and 11,973 cycles of AI-D). The corresponding figures for 2015 were 38,903 cycles: 26,959 of AI-C and 11,944 of AI-D).

Results

No changes were observed in the overall rate of gestations per cycle, either for AI-C (13.0% in 2014 and 13.5% in 2015) or for AI-D (20.3% in 2014 and 20.6% in 2015). There were 12.3% and 11.1% multiple pregnancies obtained by AI-C in 2014 and 2015, respectively. Similar results were obtained by AI-D, for which the multiple gestation rates were 12.1% and 12.2% in 2014 and 2015, respectively. Of the gestations produced by AI-C, 16.5% resulted in miscarriage in 2014, and 18.7% in 2015. With the donor technique, 16.7% resulted in miscarriage in 2014, and 18.7% in 2015.

Conclusions

The mandatory participation in RNA- Register SEF has shown that, far from being an outmoded technique, artificial insemination is widely used in Spain, and remains effective over time.