• Birth size after embryo cryopreservation: larger by all measures? 

      Landsverk, Eirik; Westvik-Johari, Kjersti; Romundstad, Liv Bente Bergem; Opdahl, Signe (Peer reviewed; Journal article, 2023)
      STUDY QUESTION Are the changes in birthweight after frozen and fresh embryo transfer associated with corresponding changes in other measures of foetal growth and placental efficiency? SUMMARY ANSWER Although placental ...
    • Growth in children conceived by ART 

      Magnus, Maria Christine; Wilcox, Allen J.; Fadum, Elin Anita; Gjessing, Håkon; Opdahl, Signe; Juliusson, Petur Benedikt; Romundstad, Liv Bente; Håberg, Siri Eldevik (Peer reviewed; Journal article, 2021)
      STUDY QUESTION: Is the growth pattern of children conceived by ART different compared to naturally conceived children. SUMMARY ANSWER: Both ART and underlying parental subfertility may contribute to differences in early ...
    • Puberty disorders among ART-conceived singletons: a Nordic register study from the CoNARTaS group 

      Klemetti, R.; Perry, B.; Henningsen, A K Aaris; Spangmose, A Lærke; Pinborg, A.; Opdahl, Signe; Romundstad, Liv Bente Bergem; Bergh, C.; Wennerholm, U.B.; Tiitinen, A.; Gissler, M. (Peer reviewed; Journal article, 2022)
      STUDY QUESTION Do ART-conceived children have an increased risk for puberty disorders? SUMMARY ANSWER Both ART-conceived boys and girls had a higher risk of puberty disorders; early puberty was more common among girls ...