• Adjusting for outcome risk factors in immigrant datasets: total or direct effects? 

      Nilsen, Roy Miodini; Klungsøyr, Kari; Stigum, Hein (Peer reviewed; Journal article, 2023)
      Background When quantifying differences in health outcomes between immigrants and non-immigrants, it is common practice to adjust for observed differences in outcome risk factors between the groups being compared. However, ...
    • Birthweight of the subsequent singleton pregnancy following a first twin or singleton pregnancy 

      Basnet, Prativa; Skjaerven, Rolv; Harmon, Quaker E.; Wilcox, Allen J.; Klungsøyr, Kari; Sørbye, Linn Marie; Morken, Nils-Halvdan; Kvalvik, Liv Grimstvedt (Peer reviewed; Journal article, 2023)
      Introduction Birthweight is an important pregnancy indicator strongly associated with infant, child, and later adult life health. Previous studies have found that second-born babies are, on average, heavier than first-born ...
    • The relationship between cesarean delivery and fecundability: a population-based cohort study 

      Sima, Yeneabeba Tilahun; Magnus, Maria Christine; Kvalvik, Liv Grimstvedt; Morken, Nils-Halvdan; Klungsøyr, Kari; Skjaerven, Rolv; Sørbye, Linn Marie (Peer reviewed; Journal article, 2023)
      Background Previous studies have found that women who undergo cesarean delivery have fewer pregnancies. Cesarean delivery is also more common among women with lower fecundability. The potential role of cesarean delivery ...
    • Risk of adverse pregnancy outcomes in twin- and singleton-born women: An inter-generational cohort study 

      Basnet, Prativa; Skjaerven, Rolv; Harmon, Quaker E.; Sørbye, Linn Marie; Morken, Nils-Halvdan; Singh, Aditi; Klungsøyr, Kari; Kvalvik, Liv Grimstvedt (Peer reviewed; Journal article, 2023)
      Objective To compare the risk of adverse pregnancy outcomes between twin-born and singleton-born women. We also evaluated whether in utero exposure to pre-eclampsia or preterm delivery affected adverse pregnancy outcomes ...