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O-185 Time trends in pregnancy complications over three decades of assisted reproduction technology (ART) – a registry-based study from the Committee of Nordic ART and Safety
S. Petersen1, M. Gissler2, C. Bergh3, B.O. Åsvold4, L.B. Romundstad5, A. Tiiteten6, S.C. Rasmussen7, M. Petzold8, A.B. Pinborg9, U.B. Wennerholm3, A.K. Henningsen9, S. Opdahl1
1Norwegian University of Science and Technology, Faculty of Medicine and Health Sciences- Department of Public Health and Nursing, Trondheim, Norway
2THL, National Institute for Health and Welfare, Helsinki, Finland
3Sahlgrenska Academy University of Gothenburg- Sahlgrenska University Hospital, Department of Obstetrics and Gynaecology- Institute of Clinical Sciences, Gothenburg, Sweden
4Norwegian University of Science and Technology, K.G. Jebsen Center for Genetic Epidemiology Department of Public Health and Nursing Faculty of Medicine and Health Sciences, Trondheim, Norway
5Norwegian Institute of Public Health, Centre for Fertility and Health, Oslo, Norway
6University of Helsinki and Helsinki University Hospital, Department of Obstetrics and Gynecology, Helsinki, Finland
7Amager and Hvidovre Hospital, Department of Clinical Microbiology, Copenhagen, Denmark 8University of Gothenburg, Swedish National Data Service & Health Metrics Unit, Gothenburg, Sweden 9Rigshospitalet Copenhagen University Hospital, The Fertility Clinic, Copenhagen, Denmark
O-186 Reduced multiple birth after 85,559 eSET over 233,548 non-eSET cycles, but twinning rate in eSET cycles is above expected levels
P. Hinstridge1, G. Bahadur1, R. Homburg2, J. Bosmans3, J. Huirne4, A. Srikantharajah2, J. Kanna5, P. Racich6, A. Al-Habib1, I. Karapanos1, E. Jauniaux7
1North Middlesex University Hospital, Reproductive Medicine Unit, London, United Kingdom 2Homerton University Hospital, Homerton Fertility Unit, London, United Kingdom
3Vrije Universiteit Amsterdam, Health Sciences, Amsterdam, The Netherlands
4VU University Medical Center, Gynaecology, Amsterdam, The Netherlands
5Royal Derby Hospital, Gynaecology, Derby, United Kingdom
6University of Oxford, Linacre College, Oxford, United Kingdom
7University College London, Institute for Women’s Health, London, United Kingdom
O-187 Association between oocyte number retrieved with neonatal outcome after freeze-all strategy
W. Yun1
1Shanghai ninth hospital, Reproduction, Shanghai, China
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