Browsing Nord Open Research Archive by Author "Bjørngaard, Johan Håkon"
Now showing items 1-20 of 24
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Adolescent health and subsequent risk of self-harm hospitalisation : a 15-year follow-up of the Young-HUNT cohort
Junker, Asbjørn; Bjørngaard, Johan Håkon; Bjerkeset, Ottar (Journal article; Peer reviewed, 2017) -
Adolescent personality traits, low self-esteem and self-harm hospitalisation : a 15-year follow-up of the Norwegian Young-HUNT1 cohort
Junker, Asbjørn; Nordahl, Hans Morten; Bjørngaard, Johan Håkon; Bjerkeset, Ottar (Journal article; Peer reviewed, 2018) -
Association of preterm birth with prescription of psychotropic drugs in adolescence and young adulthood
Bachmann, Christine Strand; Risnes, Kari; Bjørngaard, Johan Håkon; Schei, Jorun; Pape, Kristine (Peer reviewed; Journal article, 2021)Importance Individuals born preterm have increased risk of mental health impairment compared with individuals born at term. The associations between preterm birth and attention-deficit/hyperactivity disorder and autism are ... -
Avoiding dynastic, assortative mating, and population stratification biases in Mendelian randomization through within-family analyses
Brumpton, Ben Michael; Sanderson, Eleanor; Heilbron, Karl; Hartwig, FP; Harrison, S; Vie, Gunnhild Åberge; Cho, Y; Howe, LD; Hughes, A; Boomsma, D; Havdahl, Alexandra; Hopper, J; Neale, M; Nivard, Michel G.; Pedersen, N; Reynolds, CA; Tucker-D, EM; Grotzinger, A; Howe, Laurence; Morris, Tim; Li, Shuai; Within-Family Consortium, The; 23andMe Research Team, The; Auton, A; Windmeijer, F; Chen, W-M; Bjørngaard, Johan Håkon; Hveem, Kristian; Willer, C; Evans, DM; Kaprio, J; Davey Smith, G; Åsvold, BO; Åsvold, Bjørn Olav; Hemani, G; Davies, Neil Martin (Peer reviewed; Journal article, 2020)Estimates from Mendelian randomization studies of unrelated individuals can be biased due to uncontrolled confounding from familial effects. Here we describe methods for within-family Mendelian randomization analyses and ... -
Changes in General Practitioners’ consultation frequency over time for patients with hypertension or anxiety/depression symptoms: a 10-year follow-up of the Norwegian HUNT study
Skarshaug, Lena Janita; Kaspersen, Silje Lill; Bjørngaard, Johan Håkon; Pape, Kristine (Peer reviewed; Journal article, 2020)Objective To investigate trends in GP consultation patterns for adults according to baseline hypertension and anxiety/depression symptoms and attribution of the GP to trend differences. Methods Prospective cohort ... -
Cognitive behavioral therapy improves physical function and fatigue in mild and moderate chronic fatigue syndrome : A consecutive randomized controlled trial of standard and short interventions
Gotaas, Merethe Otelie Eide; Stiles, Tore C.; Bjørngaard, Johan Håkon; Borchgrevink, Petter C.; Fors, Egil Andreas (Peer reviewed; Journal article, 2021)Objective: To study whether standard cognitive behavioral therapy (CBT) and a shorter, interpersonal oriented cognitive behavioral therapy (I-CBT) can improve physical function and fatigue in patients diagnosed with mild ... -
The effect of emergency department delays on 30-day mortality in Central Norway
Asheim, Andreas; Nilsen, Sara Marie; Carlsen, Fredrik; Næss-Pleym, Lars E.; Uleberg, Oddvar; Dale, Jostein; Bjørnsen, Lars Petter Bache-Wiig; Bjørngaard, Johan Håkon (Peer reviewed; Journal article, 2019) -
Effectiveness of 'motivational interviewing' on sick leave : a randomized controlled trial in a social insurance setting
Aasdahl, Lene; Standal, Martin Inge; Hagen, Roger; Solbjør, Marit; Bagøien, Gunnhild; Fossen, Heidi; Foldal, Vegard; Bjørngaard, Johan Håkon; Rysstad, Tarjei Langseth; Grotle, Margreth; Johnsen, Roar; Fors, Egil Andreas (Peer reviewed; Journal article, 2023) -
Effects of GP characteristics on unplanned hospital admissions and patient safety. A 9-year follow-up of all Norwegian out-of-hours contacts
Svedahl, Ellen Rabben; Pape, Kristine; Austad, Bjarne; Vie, Gunnhild Åberge; Anthun, Kjartan Sarheim; Carlsen, Fredrik; Bjørngaard, Johan Håkon (Peer reviewed; Journal article, 2021)Background There are substantial differences in hospital referrals between general practitioners (GPs); however, there is little research on the consequences for patient safety and further healthcare use. Objective To ... -
General practitioners retiring or relocating and its association with healthcare use and mortality: a cohort study using Norwegian national data
Vinjerui, Kristin Hestmann; Asheim, Andreas; Anthun, Kjartan Sarheim; Carlsen, Fredrik; Mjølstad, Bente Prytz; Nilsen, Sara Marie; Pape, Kristine; Bjørngaard, Johan Håkon (Peer reviewed; Journal article, 2024) -
Genetic associations with temporal shifts in obesity and severe obesity during the obesity epidemic in Norway : A longitudinal population-based cohort (the HUNT Study)
Brandkvist, Maria Charlotta; Bjørngaard, Johan Håkon; Ødegård, Rønnaug; Brumpton, Ben Michael; Smith, George Davey; Åsvold, Bjørn Olav; Sund, Erik; Kvaløy, Kirsti; Willer, Cristen J.; Vie, Gunnhild Åberge (Peer reviewed; Journal article, 2020)Background Obesity has tripled worldwide since 1975 as environments are becoming more obesogenic. Our study investigates how changes in population weight and obesity over time are associated with genetic predisposition ... -
High volumes of recent surgical admissions, time to surgery, and 60-day mortality
Nilsen, Sara Marie; Asheim, Andreas; Carlsen, Fredrik; Anthun, Kjartan Sarheim; Johnsen, Lars Gunnar; Vatten, Lars Johan; Bjørngaard, Johan Håkon (Peer reviewed; Journal article, 2021) -
Hospitals' discharge tendency and risk of death - An analysis of 60,000 Norwegian hip fracture patients
Nilsen, Sara Marie; Bjørngaard, Johan Håkon; Carlsen, Fredrik; Anthun, Kjartan Sarheim; Johnsen, Lars Gunnar; Vatten, Lars Johan; Asheim, Andreas (Peer reviewed; Journal article, 2020)Purpose: A reduction in the length of hospital stay may threaten patient safety. This study aimed to estimate the effect of organizational pressure to discharge on 60-day mortality among hip fracture patients. Patients ... -
How do busy hospital circumstances affect mortality and readmission within 60 days : A cohort study of 680 000 acute admissions in Norway
Nilsen, Sara Marie; Asheim, Andreas; Carlsen, Fredrik; Anthun, Kjartan Sarheim; Vatten, Lars Johan; Aam, Stina; Davies, Neil Martin; Bjørngaard, Johan Håkon (Peer reviewed; Journal article, 2022) -
How does general practitioner discontinuity affect healthcare utilisation? An observational cohort study of 2.4 million Norwegians 2007-2017
Skarshaug, Lena Janita; Kaspersen, Silje Lill; Bjørngaard, Johan Håkon; Pape, Kristine (Peer reviewed; Journal article, 2021) -
Impact of altering referral threshold from out-of-hours primary care to hospital on patient safety and further health service use : a cohort study
Svedahl, Ellen Rabben; Pape, Kristine; Austad, Bjarne; Vie, Gunnhild Åberge; Anthun, Kjartan Sarheim; Carlsen, Fredrik; Davies, Neil Martin; Bjørngaard, Johan Håkon (Peer reviewed; Journal article, 2022) -
Intergenerational polygenic obesity risk throughout adolescence in a cross-sectional study design : The HUNT study, Norway
Næss, Marit; Sund, Erik; Vie, Gunnhild Åberge; Bjørngaard, Johan Håkon; Åsvold, Bjørn Olav; Holmen, Turid Lingaas; Kvaløy, Kirsti (Peer reviewed; Journal article, 2021) -
Mortality and subsequent healthcare use among older patients discharged to a municipality with excess demand for elderly care
Bjørnelv, Gudrun Waaler; Asheim, Andreas; Nilsen, Sara Marie; Anthun, Kjartan Sarheim; Carlsen, Fredrik; Aam, Stina; Kimbell, Elizabeth Anna; Bjørngaard, Johan Håkon (Peer reviewed; Journal article, 2023) -
Quantifying the impact of genes on body mass index during the obesity epidemic : Longitudinal findings from the HUNT study
Brandkvist, Maria Charlotta; Bjørngaard, Johan Håkon; Ødegård, Rønnaug; Åsvold, Bjørn Olav; Sund, Erik; Vie, Gunnhild Åberge (Peer reviewed; Journal article, 2019)Objectives To study the trajectories of body mass index (BMI) in Norway over five decades and to assess the differential influence of the obesogenic environment on BMI according to genetic predisposition. Design Longitudinal ... -
The relationship between body mass index and income: Using genetic variants from HUNT as instrumental variables
Edwards, Christina Hansen; Bjørngaard, Johan Håkon; Kinge, Jonas Minet (Peer reviewed; Journal article, 2021)