• Beyond sleep duration: Sleep timing as a risk factor for childhood obesity 

      Skjåkødegård, Hanna Flækøy; Danielsen, Yngvild Sørebø; Frisk, Bente; Hystad, Sigurd William; Roelants, Mathieu; Pallesen, Ståle; Conlon, Rachel; Wilfley, Denise E.; Juliusson, Petur Benedikt (Journal article; Peer reviewed, 2021)
      Background: Ample evidence attests to the relationship between short sleep duration, sleep problems and childhood obesity. However, few studies have examined the association between sleep timing and obesity in ...
    • BMI and BMI SDS in childhood: annual increments and conditional change 

      Brannsether-Ellingsen, Bente; Eide, Geir Egil; Roelants, Mathieu; Bjerknes, Robert; Juliusson, Petur Benedikt (Peer reviewed; Journal article, 2016)
      Background: Early detection of abnormal weight gain in childhood may be important for preventive purposes. It is still debated which annual changes in BMI should warrant attention. Aim: To analyse 1-year increments of Body ...
    • Bone mineral density and vitamin D in paediatric intestinal failure patients receiving home parenteral nutrition 

      Kvammen, Janne Anita; Thomassen, Rut Anne; Kjeserud, Christina; Sæland, Camilla; Godang, Kristin; Bollerslev, Jens; Thorsby, Per Medbøe; Juliusson, Petur Benedikt; Bentsen, Beint Sigmund; Henriksen, Christine (Journal article; Peer reviewed, 2020)
      Background & aims Patients with intestinal failure (IF) are dependent on long-term home parenteral nutrition (HPN) to ensure growth and development. The primary aim of the present study was to assess bone mineral density ...
    • Cardiometabolic risk factors differ among adolescents with obesity in three European countries - a cross sectional study 

      Benestad, Beate; Juliusson, Petur Benedikt; Siegfried, Wolfgang; Lekhal, Samira; Småstuen, Milada Cvancarova; Hertel, Jens Kristoffer; Agosti, Fiorenza; Marazzi, Nicoletta; Hjelmesæth, Jøran; Sartorio, Alessandro (Peer reviewed; Journal article, 2018-03)
      Aim: We aimed to compare modifiable cardiometabolic risk factors among treatment‐seeking adolescents with obesity in Italy, Germany and Norway. Methods: This retrospective, registry‐based, cross‐sectional cohort study ...
    • Comparison of physical activity and body composition in a cohort of children born extremely preterm or with extremely low birth weight to matched term-born controls: a follow-up study 

      Engan, Mette; Vollsæter, Maria; Øymar, Knut; Markestad, Trond; Eide, Geir Egil; Halvorsen, Thomas; Juliusson, Petur Benedikt; Clemm, Hege Synnøve Havstad (Peer reviewed; Journal article, 2019)
      Objectives: To compare physical activity and body composition in a cohort of children born extremely preterm/extremely low birth weight (EP/ELBW) with term-born (TB) controls. Methods: A regional cohort of children born ...
    • Contrasting patterns of overweight and thinness among preschool children of different ethnic groups in Norway, and relations with maternal and early life factors 

      Toftemo, Ingun; Jenum, Anne Karen; Lagerløv, Per; Juliusson, Petur Benedikt; Falk, Ragnhild Sørum; Sletner, Line (Peer reviewed; Journal article, 2018-08-23)
      Background: Childhood obesity is a worldwide health challenge and risk factor for adult life obesity, which predisposes to development of type 2 diabetes and cardiovascular diseases. However, also thinness in early life ...
    • Early Gut Fungal and Bacterial Microbiota and Childhood Growth 

      Schei, Kasper; Simpson, Melanie Rae; Avershina, Ekaterina; Rudi, Knut; Øien, Torbjørn; Juliusson, Petur Benedikt; Underhill, David; Salamati, Saideh; Ødegård, Rønnaug (Journal article; Peer reviewed, 2020)
      Introduction: Childhood growth is a sensitive marker of health. Animal studies show increased height and weight velocity in the presence of fungal as well as antibiotic supplement in feed. Human studies on early gut ...
    • A Family-Oriented Intervention Programme to Curtail Obesity From Five Years of Age Had No Effect Over No Intervention 

      Donkor, Hilde Mjell; Grundt, Jacob Holter; Juliusson, Petur Benedikt; Eide, Geir Egil; Hurum, Jørgen; Bjerknes, Robert; Markestad, Trond Jacob (Peer reviewed; Journal article, 2019-11-02)
      Aim To examine the effect of a family‐oriented multidisciplinary intervention programme to curtail weight increase in young children with obesity. Methods Children who weighed more than one kilogram above the 97th percentile ...
    • Gender-related differences in cardiometabolic risk factors and lifestyle behaviors in treatment-seeking adolescents with severe obesity 

      Barstad, Lisa Ha; Juliusson, Petur Benedikt; Johnson, Line Kristin; Hertel, Jens Kristoffer; Lekhal, Samira; Hjelmesæth, Jøran (Peer reviewed; Journal article, 2018-02-14)
      Background: Obesity during adolescence is associated with cardiovascular mortality in adulthood. The adverse obesity-related cardiometabolic risk profile is already observed in adolescence. We aimed to examine possible ...
    • Genome-wide association study reveals dynamic role of genetic variation in infant and early childhood growth 

      Helgeland, Øyvind; Vaudel, Marc; Juliusson, Petur Benedikt; Holmen, Oddgeir Lingaas; Juodakis, Julius; Bacelis, Jonas; Jacobsson, Bo; Lindekleiv, Haakon; Hveem, Kristian; Lie, Rolv T.; Knudsen, Gun Peggy Strømstad; Stoltenberg, Camilla; Magnus, Per; Sagen, Jørn V.; Molven, Anders; Johansson, Stefan; Njølstad, Pål Rasmus (Peer reviewed; Journal article, 2019-10-01)
      Infant and childhood growth are dynamic processes with large changes in BMI during development. By performing genome-wide association studies of BMI at 12 time points from birth to eight years (9286 children, 74,105 ...
    • Health-related behaviors in adolescents mediate the association between subjective social status and body mass index 

      Bjertnæs, Asborg Sine Aanstad; Schwinger, Catherine; Juliusson, Petur Benedikt; Strand, Tor A; Holten-Andersen, Mads Nikolaj; Bakken, Kjersti Sletten (Journal article; Peer reviewed, 2020)
      The aim of this study was to explore the association between adolescent subjective social status (SSS) and body mass index (BMI) at two different time points and to determine whether this association was mediated by ...
    • Hormone references for ultrasound breast staging and endocrine profiling to detect female onset of puberty 

      Madsen, Andre; Bruserud, Ingvild Særvold; Bertelsen, Bjørn-Erik; Roelants, Mathieu; Oehme, Ninnie; Viste, Kristin; Bjerknes, Robert; Almås, Bjørg; Rosendahl, Karen; Mellgren, Gunnar; Sagen, Jørn V.; Juliusson, Petur Benedikt (Journal article; Peer reviewed, 2020)
      Context Application of ultrasound (US) to evaluate attainment and morphology of glandular tissue provides a new rationale for evaluating onset and progression of female puberty, but currently no hormone references complement ...
    • Laparoskopisk gastrisk bypassoperasjon versus livsstilsbehandling av unge med sykelig overvekt 

      Hjelmesæth, Jøran; Hertel, Jens Kristoffer; Holt, Ane Hjetland; Benestad, Beate; Seeberg, Lars Thomas; Lindberg, Morten; Halvorsen, Erling; Juliusson, Petur Benedikt; Sandbu, Rune; Lekhal, Samira (Journal article; Peer reviewed, 2020)
      BAKGRUNN Kunnskapsgrunnlaget om effekten av og komplikasjoner ved vektreduserende kirurgi hos ungdom er mangelfullt. Hovedformålet med 4XL-studien er å avklare om laparoskopisk Roux-en-Y gastrisk bypassoperasjon (LGBP) ...
    • Life expectancy and disease burden in the Nordic countries: results from the Global Burden of Diseases, Injuries, and Risk Factors Study 2017 

      Kisa, Adnan; Knudsen, Ann Kristin; Allebeck, Peter; Tollånes, Mette Christophersen; Skogen, Jens Christoffer; Iburg, Kim Moesgaard; McGrath, John J; Juel, Knud; Agardh, Emilie Elisabet; Arnlöv, Johan; Bjørge, Tone; Carrero, Juan J.; Cederroth, Christopher R; Eggen, Anne Elise; El-Khatib, Ziad; Lycke Ellingsen, Christian; Fereshtehnejad, Seyed-Mohammad; Gissler, Mika; Hadkhale, Kishor; Havmoeller, Rasmus; Johansson, Lars; Juliusson, Petur Benedikt; Kiadaliri, Aliasghar A.; Kisa, Sezer; Lallukka, Tea; Mekonnen, Teferi; Meretoja, Tuomo J.; Meretoja, Atte; Naghavi, Mohsen; Neupane, Subas; Nguyen, Truc Trung; Petzold, Max; Plana-Ripoll, Oleguer; Shiri, Rahman; Sigurvinsdottir, Rannveig; Skirbekk, Vegard; Skou, Søren T; Sigfusdottir, Inga Dora; Steiner, Timothy J.; Sulo, Gerhard; Truelsen, Thomas Clement; Vasankari, Tommi Juhani; Weiderpass, Elisabete; Vollset, Stein Emil; Vos, Theo; Øverland, Simon (Peer reviewed; Journal article, 2019-12-01)
      Background The Nordic countries have commonalities in gender equality, economy, welfare, and health care, but differ in culture and lifestyle, which might create country-wise health differences. This study compared life ...
    • Management and interpretation of heterogeneous observational data: Using insulin-like growth factor-I data from the NordiNet® International Outcome Study 

      Blankenstein, Oliver; Pedersen, Birgitte Tønnes; Schlumpf, Michael; Andreasen, Arne Haahr; Juliusson, Petur Benedikt (Peer reviewed; Journal article, 2014-12-09)
      Objective. The NordiNet® International Outcome Study (IOS), a large-scale, non-interventional, multi-centre, real-world study of Norditropin® treatment, registers insulin-like growth factor-I (IGF-I) values, as measured ...
    • Micronutrients in paediatric Intestinal Failure Patients receiving home parenteral nutrition 

      Thomassen, Rut Anne; Kvammen, Janne Anita; Sæland, Camilla; Kjeserud, Christina; Eikeland, Joakim; Juliusson, Petur Benedikt; Bentsen, Beint Sigmund; Henriksen, Christine (Journal article; Peer reviewed, 2020-11)
      Background & aims Children with intestinal failure (IF) receive parental nutrition to ensure adequate growth and development. The aim of this study was to assess micronutrient status in paediatric IF patients receiving ...
    • Monitoring children and adolescents with severe obesity: body mass index (BMI), BMI z‐score or percentage above the International Obesity Task Force overweight cut‐off? 

      Løkling, Hanne L; Roelants, Mathieu; Kommedal, Kristin; Skjåkødegård, Hanna Flækøy; Apalset, Ellen M; Benestad, Beate; Morken, Mette Helvik; Hjelmesæth, Jøran; Juliusson, Petur Benedikt (Peer reviewed; Journal article, 2019)
      Aim: Body mass index (BMI) metrics are widely used as a proxy for adiposity in children with severe obesity. The BMI expressed as the percentage of a cut‐off percentile for overweight or obesity has been proposed as a ...
    • No significant associations between breastfeeding practices and overweight in 8-year-old children 

      Bjertnæs, Asborg Sine Aanstad; Grundt, Jacob Holter; Donkor, Hilde Mjell; Juliusson, Petur Benedikt; Wenzel-Larsen, Tore; Vaktskjold, Arild; Markestad, Trond; Holten-Andersen, Mads Nikolaj (Peer reviewed; Journal article, 2019)
      Aim: The aim was to examine if breastfeeding practices were associated with body mass index (BMI) and risk of overweight or obesity in third grade (8 years) of elementary school. Methods: In a regional cohort, we related ...
    • Normal Liver Stiffness Values in Children - A Comparison of Three Different Elastography Methods 

      Mjelle, Anders Batman; Mulabecirovic, Anesa; Havre, Roald Flesland; Rosendahl, Karen; Juliusson, Petur Benedikt; Olafsdottir, Edda Jonina; Gilja, Odd Helge; Vesterhus, Mette (Peer reviewed; Journal article, 2019-05)
      Objectives: Noninvasive tests for the evaluation of liver fibrosis are particularly helpful in children to avoid general anesthesia and potential complications of invasive tests. We aimed to establish reference values for ...
    • Norwegian children and adolescents in blended families are at risk of larger one-year BMI increments 

      Kristiansen, Hege; Roelants, Mathieu; Bjerknes, Robert; Juliusson, Petur Benedikt (Peer reviewed; Journal article, 2020)
      Aim: To study how sociodemographic factors and family structure associate with baseline BMI z‐scores (BMIz) and BMIz change in 767 Norwegian children aged 6‐15 years. Methods: Baseline BMIz and 1‐year BMIz increments in ...