Publications by authors named "Marit Knapstad"

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Can registry-based auxiliary variables improve handling of missing outcome data in mental health trials? Evidence from a registry-linked randomized study.
Amanda Iselin Olesen Andersen, Marit Knapstad, Otto Robert Frans Smith

Trials· December 2025

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Mental stress due to poor organizational climate and high work commitment as predictor of 10-year registered sickness absence: a cohort study based on The Population Study of Women in Gothenburg.
Marit Knapstad, Lauren Lissner, Cecilia Björkelund, Kristina Holmgren

Scand J Prim Health Care· September 2025

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Effects of the Norwegian IAPT model (PMHC) on dispensed psychotropic medication.
Otto Robert Frans Smith, Marit Knapstad, Leif Edvard Aarø

Gen Hosp Psychiatry· September 2025

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Non-response bias in the Norwegian Counties Public Health Survey: Insights from linkage to register data.
Thomas S Nilsen, Marit Knapstad, Jens C Skogen, Leif E Aarø, Øystein Vedaa

Scand J Public Health· August 2025

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Do we need two hammers in our toolbox? An empirical note about the potential redundancy of measuring subjective quality of life.
Otto R F Smith, Marit Knapstad, Leif Edvard Aarø

Front Public Health· August 2025

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Positive mental wellbeing or symptoms of depression? Discriminant validity of the Warwick-Edinburgh Mental Wellbeing Scale.
Leif Edvard Aarø, Marit Knapstad, Otto Robert Smith

BMC Psychiatry· May 2025

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Minimizing patient burden in outcome monitoring: The case for abbreviated versions of PHQ-9, GAD-7 and WSAS.
Otto R F Smith, Marit Knapstad, Leif Edvard Aarø

J Affect Disord· March 2025

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Four scales measuring mental wellbeing in the Nordic countries: do they tell the same story?
Leif Edvard Aarø, Otto Robert Smith, Mogens Trab Damsgaard, Anne-Siri Fismen, Marit Knapstad

Health Qual Life Outcomes· March 2025

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Cost-benefit of IAPT Norway and effects on work-related outcomes and health care utilization: results from a randomized controlled trial using registry-based data.
Otto R F Smith, David M Clark, Gunnel Hensing, Richard Layard, Marit Knapstad

Psychol Med· March 2025

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Assessing Diagnostic Precision: Adaptations of the Hopkins Symptom Checklist (HSCL-5/10/25) Among Tertiary-Level Students in Norway.
Børge Sivertsen, Jens C Skogen, Anne Reneflot, Marit Knapstad, Otto Robert Frans Smith

Clin Psychol Eur· December 2024

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The Norwegian Counties Public Health Survey (NCPHS): a design study.
Leif Edvard AarØ, Marit Knapstad, Thomas Nilsen, Jens Christoffer Skogen, Ragnhild Bang Nes

Scand J Public Health· October 2024

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A cross-sectional study of the relationship between injuries and quality of life, psychological distress, sleeping problems, and global subjective health in adults from three Norwegian counties.
Leif Edvard Aarø, Eyvind Ohm, Jens Christoffer Skogen, Thomas Nilsen, Marit Knapstad

Health Qual Life Outcomes· November 2023

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The Importance of Symptom Reduction for Functional Improvement after Cognitive Behavioral Therapy for Anxiety and Depression: A Causal Mediation Analysis.
Otto R F Smith, Leif E Aarø, Marit Knapstad

Psychother Psychosom· June 2023

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Client predictors of therapy dropout in a primary care setting: a prospective cohort study.
Elin Hanevik, Frida M G Røvik, Tormod Bøe, Marit Knapstad, Otto R F Smith

BMC Psychiatry· May 2023

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Moderators of treatment effect of Prompt Mental Health Care compared to treatment as usual: Results from a randomized controlled trial.
Solbjørg M M Sæther, Marit Knapstad, Nick Grey, Otto R F Smith

Behav Res Ther· November 2022

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Covid-fatigued? A longitudinal study of Norwegian older adults' psychosocial well-being before and during early and later stages of the COVID-19 pandemic.
Thomas Hansen, Thomas Sevenius Nilsen, Marit Knapstad, Vegard Skirbekk, Jens Skogen

Eur J Ageing· September 2022

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Long-term outcomes at 24- and 36-month follow-up in the intervention arm of the randomized controlled trial of Prompt Mental Health Care.
Otto R F Smith, Solbjørg M M Sæther, Ellen Haug, Marit Knapstad

BMC Psychiatry· September 2022

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Exploring the temporal associations between avoidance behavior and cognitions during the course of cognitive behavioral therapy for clients with symptoms of social anxiety disorder.
Linn Vathne Lervik, Asle Hoffart, Marit Knapstad, Otto R F Smith

Psychother Res· February 2022

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Locked and lonely? A longitudinal assessment of loneliness before and during the COVID-19 pandemic in Norway.
Thomas Hansen, Thomas S Nilsen, Baeksan Yu, Marit Knapstad, Jens Christoffer Skogen

Scand J Public Health· November 2021

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Social anxiety and agoraphobia symptoms effectively treated by Prompt Mental Health Care versus TAU at 6- and 12-month follow-up: Secondary analysis from a randomized controlled trial.
Marit Knapstad, Otto R F Smith

Depress Anxiety· March 2021

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Psychometric Properties of the Norwegian Version of the Cognitive Therapy Adherence and Competence Scale (CTACS) and Its Associations With Outcomes Following Treatment in IAPT Norway.
Linn Vathne Lervik, Marit Knapstad, Asle Hoffart, Otto R F Smith

Front Psychol· February 2021

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Long-term outcomes of Prompt Mental Health Care: A randomized controlled trial.
Solbjørg Makalani Myrtveit Sæther, Marit Knapstad, Nick Grey, Marit Aase Rognerud, Otto R F Smith

Behav Res Ther· December 2020

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Process evaluation of Prompt Mental Health Care (PMHC): the Norwegian version of Improving Access to Psychological Therapies.
Linn Vathne Lervik, Marit Knapstad, Otto Robert Frans Smith

BMC Health Serv Res· May 2020

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Prompt Mental Health Care (PMHC): work participation and functional status at 12 months post-treatment.
Marit Knapstad, Solbjørg Makalani Myrtveit Sæther, Gunnel Hensing, Otto Robert Frans Smith

BMC Health Serv Res· February 2020

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