• COVID-19 and mental health: a longitudinal population study from Norway 

      Hvide, Hans K.; Johnsen, Julian Vedeler (Journal article; Peer reviewed, 2022)
      Existing research has found adverse short-term effects of the COVID-19 pandemic on mental health, but longer-term effects have been less documented. Using newly released register data on all general practitioner consultations ...
    • Parental age and birth defects: a sibling study 

      Hvide, Hans K.; Johnsen, Julian Vedeler; Salvanes, Kjell Gunnar (Journal article; Peer reviewed, 2021)
      Higher parental age at childbearing has generated much attention as a potential risk factor for birth disorders; however, previous research findings are mixed. Existing studies have exploited variation in parental age ...