• Association between hypersomnolence and the COVID-19 pandemic: The International COVID-19 Sleep Study (ICOSS) 

      Sarkanen, Tomi; Partinen, Markku; Bjorvatn, Bjørn; Merikanto, Ilona; Benedict, Christian; Nadorff, Michael R.; Bolstad, Courtney J.; Espie, Colin; Matsui, Kentaro; Chung, Frances; Morin, Charles M.; Wing, Yun Kwok; Penzel, Thomas; Macêdo, Tainá; Mota-Rolim, Sérgio; Holzinger, Brigitte; Plazzi, Giuseppe; De Gennaro, Luigi; Landtblom, Anne-Marie; Inoue, Yuichi; Sieminski, Mariuz; Leger, Damien; Dauvilliers, Yves (Journal article; Peer reviewed, 2023)
      Background The COVID-19 pandemic and related restriction measures have affected our daily life, sleep, and circadian rhythms worldwide. Their effects on hypersomnolence and fatigue remain unclear. Methods The ...
    • Associations between changes in habitual sleep duration and lower self-rated health among COVID-19 survivors: findings from a survey across 16 countries/regions 

      Matsui, Kentaro; Chung, Frances; Bjelajac, Adrijana Koscec; Merikanto, Ilona; Korman, Maria; Mota-Rolim, Sérgio; Cunha, Ana Suely; Bjorvatn, Bjørn; Xue, Pei; Benedict, Christian; Morin, Charles M.; Espie, Colin A.; Landtblom, Anne-Marie; Penzel, Thomas; De Gennaro, Luigi; Holzinger, Brigitte; Hrubos-Strøm, Harald; Leger, Damien; Bolstad, Courtney J.; Nadorff, Michael R.; Plazzi, Giuseppe; Reis, Catia; Chan, Ngan Yin; Wing, Yun Kwok; Yordanova, Juliana; Dauvilliers, Yves; Partinen, Markku; Inoue, Yuichi (Journal article; Peer reviewed, 2023)
      Background Self-rated health (SRH) is widely recognized as a clinically significant predictor of subsequent mortality risk. Although COVID-19 may impair SRH, this relationship has not been extensively examined. The ...
    • Persistent short nighttime sleep duration is associated with a greater post-COVID risk in fully mRNA-vaccinated individuals 

      Xue, Pei; Merikanto, Ilona; Chung, Frances; Morin, Charles M.; Espie, Colin; Bjorvatn, Bjørn; Cedernaes, Jonathan; Landtblom, Anne-Marie; Penzel, Thomas; De Gennaro, Luigi; Holzinger, Brigitte; Matsui, Kentaro; Hrubos-Strøm, Harald; Korman, Maria; Leger, Damien; Mota-Rolim, Sérgio; Bolstad, Courtney J.; Nadorff, Michael; Plazzi, Giuseppe; Reis, Catia; Chan, Rachel Ngan Yin; Wing, Yun Kwok; Yordanova, Juliana; Bjelajac, Adrijana Koscec; Inoue, Yuichi; Partinen, Markku; Dauvilliers, Yves; Benedict, Christian (Journal article; Peer reviewed, 2023)
      Short nighttime sleep duration impairs the immune response to virus vaccination, and long nighttime sleep duration is associated with poor health status. Thus, we hypothesized that short (<6 h) and long (>9 h) nighttime ...
    • Shift workers are at increased risk of severe COVID-19 compared with day workers: Results from the international COVID sleep study (ICOSS) of 7141 workers 

      Bjorvatn, Bjørn; Merikanto, Ilona; Reis, Catia; Korman, Maria; Bjelajac, Adrijana Koscec; Holzinger, Brigitte; De Gennaro, Luigi; Wing, Yun Kwok; Morin, Charles M.; Espie, Colin A.; Benedict, Christian; Landtblom, Anne-Marie; Matsui, Kentaro; Hrubos-Strøm, Harald; Mota-Rolim, Sérgio; Nadorff, Michael R.; Plazzi, Giuseppe; Chan, Rachel Ngan Yin; Partinen, Markku; Dauvilliers, Yves; Chung, Frances; Forthun, Ingeborg (Journal article; Peer reviewed, 2022)
      The present study had two main aims. First, to investigate whether shift/night workers had a higher prevalence and severity of COVID-19 compared with day workers. Second, to investigate whether people regularly working in ...