Doktorgradsavhandling

• Marit Knapstad; Simon Nygaard Øverland (2015). Psychological factors in long-termsickness absence: the role of shame and social support: Epidemiological studies based on the Health Assets Project. (ekstern lenke)

Forelesning

• Tonje Catrin Hakvaag; Marit Knapstad; Jone Ravndal Bjørnestad et al. (2021). Factors perceived to impact return to work in Scandinavian sickness insurance: a scoping review of encounters between sick-listed and social insurance officers. (ekstern lenke)
• Otto Robert Frans Smith; Daniele Evelin Alves; Marit Knapstad (2016). Status fra evalueringsarbeidet. (ekstern lenke)

Forskningsrapport

• Gunnhild Johnsen Hjetland; Truc Trung Nguyen; Marit Knapstad et al. (2026). Folkehelseundersøkelsen i Finnmark 2026: fremgangsmåte og utvalgte resultater. (ekstern lenke)
• Gunnhild Johnsen Hjetland; Erlend Sunde; Truc Trung Nguyen et al. (2026). Folkehelseundersøkelsen i Buskerud 2025: fremgangsmåte og utvalgte resultater.. (ekstern lenke)
• Gunnhild Johnsen Hjetland; Erlend Sunde; Truc Trung Nguyen et al. (2026). Folkehelseundersøkelsen i Akershus 2025: Fremgangsmåte og utvalgte resultater. (ekstern lenke)
• Gunnhild Johnsen Hjetland; Erlend Sunde; Truc Trung Nguyen et al. (2026). Folkehelseundersøkelsen i Østfold 2025: Fremgangsmåte og utvalgte resultater. (ekstern lenke)
• Marit Knapstad; Gunnhild Johnsen Hjetland; Turi Reiten Finserås et al. (2025). Evaluering av veiledet internettbehandling ved Rask psykisk helsehjelp: En randomisert kontrollert studie. (ekstern lenke)
• Marit Knapstad; Ingebjørg Louise Rockwell Djupedal; Ragnhild Bang Nes et al. (2025). Livskvalitet, subjektiv helse, sosiale relasjoner og funksjonsnivå blant eldre i Bergen 2024: En digital og postal spørreskjemaundersøkelse. (ekstern lenke)
• Øystein Vedaa; Marit Knapstad; Thomas Sevenius Nilsen et al. (2025). Folkehelseundersøkelsen i Oslo 2024: Fremgangsmåte og utvalgte resultater. (ekstern lenke)
• Marit Knapstad; Thomas Sevenius Nilsen; Jens Christoffer Skogen et al. (2024). Folkehelseundersøkelsen i Agder 2023: fremgangsmåte og utvalgte resultater. (ekstern lenke)
• Marit Knapstad; Ragnhild Bang Nes; Thomas Sevenius Nilsen et al. (2024). Folkehelseundersøkelsen i Rogaland 2023: Fremgangsmåte og utvalgte resultater. (ekstern lenke)
• Tony Mathias Leino; Thomas Sevenius Nilsen; Marit Knapstad (2023). Koronaundersøkinga i Vestland 2021: Framgangsmåte og utvalde resultat. (ekstern lenke)
• Marit Knapstad; Tony Mathias Leino (2023). Folkehelseundersøkinga i Vestland 2022: Utvalde resultat basert på tilleggsspørsmåla i undersøkinga. (ekstern lenke)
• Tony Mathias Leino; Thomas Sevenius Nilsen; Leif Edvard Aarø et al. (2023). Folkehelseundersøkelsen i Innlandet 2023: Fremgangsmåte og utvalgte resultater. (ekstern lenke)
• Marit Knapstad; Jens Christoffer Skogen; Tony Mathias Leino et al. (2022). Folkehelseundersøkelsen – Helse og trivsel i Vestfold og Telemark 2021: Fremgangsmåte og utvalgte resultater. (ekstern lenke)
• Marit Knapstad; Jens Christoffer Skogen; Tony Mathias Leino et al. (2022). Folkehelseundersøkelsen i Viken 2021: Fremgangsmåte og utvalgte resultater. (ekstern lenke)
• Tony Mathias Leino; Leif Edvard Aarø; Marit Knapstad et al. (2022). Opplevd tiltaksbyrde under koronapandemien: Resultater fra fire fylker desember 2021.. (ekstern lenke)
• Marit Knapstad; Jens Christoffer Skogen; Gunnhild Johnsen Hjetland et al. (2022). Folkehelseundersøkinga i Vestland 2022: Framgangsmåte og utvalde resultat. (ekstern lenke)
• Leif Edvard Aarø; Øystein Vedaa; Tone Bruun et al. (2021). Koronaatferd og landbakgrunn i fire fylker. Etterlevelse og holdninger til offisiellesmittevernråd, opplevd engstelse, psykiske plager og endringer i sosiale kontakter etter landbakgrunn. Resultater fra undersøkelser i fire fylker under koronapandemien. (ekstern lenke)
• Marit Knapstad; Thomas Sevenius Nilsen; Leif Edvard Aarø et al. (2021). Folkehelseundersøkinga i Møre og Romsdal 2021: Framgangsmåte og utvalde resultat. (ekstern lenke)
• Marianne A Riise Bergsaker; Bernt Bratsberg; Anita Odveig Daae et al. (2021). Folkehelserapportens temautgave 2021. Folkehelsen etter covid-19. Pandemiens konsekvenser for ulike grupper i befolkningen. (ekstern lenke)
• Jens Christoffer Skogen; Thomas Sevenius Nilsen; Gunnhild Johnsen Hjetland et al. (2020). Folkehelseundersøkelsen i Rogaland 2020: Fremgangsmåte og utvalgte resultater. (ekstern lenke)
• Marit Knapstad; Jens Christoffer Skogen; Thomas Sevenius Nilsen et al. (2019). Folkehelseundersøkinga i Sogn og Fjordane: Framgangsmåte og utvalde resultat. (ekstern lenke)
• Marit Knapstad; Ove Heradstveit; Børge Sivertsen (2018). Studentenes helse- og trivselsundersøkelse 2018. (ekstern lenke)
• Marit Knapstad; Ove Heradstveit; Børge Sivertsen (2018). Studentenes Helse- og Trivselsundersøkelse 2018 (SHoT)/ HELT ÆRLIG-undersøkelsen. (ekstern lenke)
• Robin Ulriksen; Marit Knapstad (2016). Digital mobbing. Kunnskapsoppsummering over forskning på effekter av tiltak.. (ekstern lenke)
• Otto Robert Frans Smith; Daniele Evelin Alves; Marit Knapstad (2016). Rask psykisk helsehjelp: Evaluering av de første 12 pilotene i Norge. (ekstern lenke)
• Therese Kristine Dalsbø; Marit Knapstad (2015). Arbeidsplasstiltak får trolig flere sykemeldte tilbake på jobb (Cochrane - kort oppsummert). (ekstern lenke)
• Therese Kristine Dalsbø; Marit Knapstad (2014). Arbeidsmiljøfaktorer kan påvirke ansattes psykiske helse (omtale av SBU-rapport). (ekstern lenke)
• Therese Kristine Dalsbø; Kristin Thuve Dahm; Astrid Austvoll-Dahlgren et al. (2013). Arbeidslivsbaserte tiltak for psykisk helse hos ansatte. (ekstern lenke)

Kapittel i fagbok

• Øystein Vedaa; Jens Christoffer Skogen; Marit Knapstad et al. (2021). Psykisk helse og livskvalitet under pandemien. (ekstern lenke)

Konferanseabstrakt

• Leif Edvard Aarø; Thomas Sevenius Nilsen; Marit Knapstad et al. (2024). The Norwegian Counties Public Health Survey (NCPHS). (ekstern lenke)
• Therese Kristine Dalsbø; Marit Knapstad (2015). Stress hos helsepersonell kan forebygges (Cochrane - kort oppsummert). (ekstern lenke)

Konferanseforedrag

• Tonje Catrin Hakvaag; Marit Knapstad; Jone Ravndal Bjørnestad et al. (2021). Interpersonal encounters in Return to Work. (ekstern lenke)
• Rolf Reber; Pascal Wurtz; Marit Knapstad et al. (2009). A Polarity Correspondence Account of Comparative Number Magnitude Judgments. (ekstern lenke)

Leserbrev

• Otto Robert Frans Smith; Marit Knapstad; Daniele Evelin Alves et al. (2017). Initial results of prompt mental health care, the Norwegian version of improving access to psychological therapies. (ekstern lenke)

Populærvitenskapelig artikkel

• Sebastian Brun Bjørkheim; Bjørn Sætrevik; Marit Knapstad (2022). Hvilke grunner har folk til å ikke følge smitteverntiltakene?. (ekstern lenke)

Rapport

• Gunnhild Johnsen Hjetland; Truc Trung Nguyen; Ingebjørg Louise Rockwell Djupedal et al. (2026). Folkehelseundersøkinga i Vestland 2026: Framgangsmåte og utvalde resultat. (ekstern lenke)
• Øystein Vedaa; Erlend Sunde; Truc Trung Nguyen et al. (2026). Folkehelseundersøkelsen i Telemark 2025: fremgangsmåte og utvalgte resultater. (ekstern lenke)
• Øystein Vedaa; Erlend Sunde; Truc Trung Nguyen et al. (2026). Folkehelseundersøkelsen i Vestfold 2025: fremgangsmåte og utvalgte resultater. (ekstern lenke)
• Øystein Vedaa; Truc Trung Nguyen; Marit Knapstad et al. (2026). Folkehelseundersøkelsen i Troms 2025: fremgangsmåte og utvalgte resultater. (ekstern lenke)
• Øystein Vedaa; Gunnhild Johnsen Hjetland; Truc Trung Nguyen et al. (2026). Den nasjonale folkehelseundersøkelsen 2025: fremgangsmåte og utvalgte resultater. (ekstern lenke)

Vitenskapelig artikkel

• Benedicte Kirkøen; Astrid M.A. Eriksen; Ann Ragnhild Broderstad et al. (2026). Trends in anxiety and depressive symptoms among adults in Norway based on eight population-based surveys from 1995 to 2024. (ekstern lenke)
• Robert Smith; Marit Knapstad; Leif Edvard Aarø (2026). Dynamics of Cognitions and Symptoms during Treatment: A Prospective Test of Beck’s Cognitive Theory of Depression. (ekstern lenke)
• Jill Kristin Bjarke; Marit Knapstad; Rolf Gjestad et al. (2026). A pre-treatment comparison of referral pathways to guided ICBT for depression and anxiety disorders - A naturalistic study in routine clinical care. (ekstern lenke)
• Robert Smith; Leif Edvard Aarø; Marit Knapstad (2026). Validation of the Norwegian version of the Brief Self Control Scale (BSCS) in patients who received treatment for common mental health problems. (ekstern lenke)
• Marit Knapstad; Robert Smith (2026). Guided internet-based treatment for anxiety and depression in Norwegian primary care: a randomized non-inferiority effectiveness trial. (ekstern lenke)
• Amanda Iselin Olesen Andersen; Marit Knapstad; Otto Robert Frans Smith (2025). Can registry-based auxiliary variables improve handling of missing outcome data in mental health trials? Evidence from a registry-linked randomized study. (ekstern lenke)
• Robert Smith; Marit Knapstad; Leif Edvard Aarø (2025). Do we need two hammers in our toolbox? An empirical note about the potential redundancy of measuring subjective quality of life. (ekstern lenke)
• Thomas Sevenius Nilsen; Marit Knapstad; Jens Christoffer Skogen et al. (2025). Non-response bias in the Norwegian Counties Public Health Survey: Insights from linkage to register data. (ekstern lenke)
• Otto Robert Frans Smith; Marit Knapstad; Leif Edvard Aarø (2025). Minimizing patient burden in outcome monitoring: The case for abbreviated versions of PHQ-9, GAD-7 and WSAS. (ekstern lenke)
• Otto Robert Frans Smith; David M. Clark; Gunnel Hensing et al. (2025). 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. (ekstern lenke)
• Tonje Catrin Hakvaag; Marit Knapstad; Tore Tjora (2025). Office Level Variation in Benefit Duration for Service Users Receiving Work Assessment Allowance: A Norwegian Longitudinal Multilevel Register Study. (ekstern lenke)
• Marit Knapstad; Lauren Lissner; Cecilia Björkelund et al. (2025). 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. (ekstern lenke)
• Leif Edvard Aarø; Otto Robert Smith; Mogens Trab Damsgaard et al. (2025). Four scales measuring mental wellbeing in the Nordic countries: do they tell the same story?. (ekstern lenke)
• Leif Edvard Aarø; Marit Knapstad; Otto Robert Frans Smith (2025). Positive mental wellbeing or symptoms of depression? Discriminant validity of the Warwick-Edinburgh Mental Wellbeing Scale. (ekstern lenke)
• Børge Sivertsen; Jens Christoffer Skogen; Anne Reneflot et al. (2024). Assessing Diagnostic Precision: Adaptations of the Hopkins Symptom Checklist (HSCL-5/10/25) Among Tertiary-Level Students in Norway. (ekstern lenke)
• Leif Edvard Aarø; Marit Knapstad; Thomas Sevenius Nilsen et al. (2024). The Norwegian Counties Public Health Survey (NCPHS): a design study. (ekstern lenke)
• Elin Hanevik; Frida M. G. Røvik; Tormod Bøe et al. (2023). Client predictors of therapy dropout in a primary care setting: a prospective cohort study. (ekstern lenke)
• Otto Robert Frans Smith; Leif Edvard Aarø; Marit Knapstad (2023). The Importance of Symptom Reduction for Functional Improvement after Cognitive Behavioral Therapy for Anxiety and Depression: A Causal Mediation Analysis. (ekstern lenke)
• Leif Edvard Aarø; Tony Mathias Leino; Øystein Vedaa et al. (2023). Behavioural precautions to avoid transmission of the COVID-19 virus – low educated groups are not always lagging behind. (ekstern lenke)
• Leif Edvard Aarø; Eyvind Ohm; Jens Christoffer Skogen et al. (2023). 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. (ekstern lenke)
• Børge Sivertsen; Marit Knapstad; Keith Petrie et al. (2022). Changes in mental health problems and suicidal behaviour in students and their associations with COVID-19-related restrictions in Norway: A national repeated cross-sectional analysis. (ekstern lenke)
• Solbjørg Makalani Myrtveit Sæther; Marit Knapstad; Nick Grey et al. (2022). Moderators of treatment effect of Prompt Mental Health Care compared to treatment as usual: Results from a randomized controlled trial. (ekstern lenke)
• Otto Robert Frans Smith; Solbjørg Makalani Myrtveit Sæther; Ellen Merethe Melingen Haug et al. (2022). Long-term outcomes at 24- and 36-month follow-up in the intervention arm of the randomized controlled trial of Prompt Mental Health Care. (ekstern lenke)
• Thomas Hansen; Thomas Sevenius Nilsen; Marit Knapstad et al. (2021). Covid-fatigued? A longitudinal study of Norwegian older adults’ psychosocial well-being before and during early and later stages of the COVID-19 pandemic. (ekstern lenke)
• Linn Vathne Lervik; Marit Knapstad; Asle Hoffart et al. (2021). 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. (ekstern lenke)
• Marit Knapstad; Robert Frans Otto Smith (2021). 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. (ekstern lenke)
• Thomas Hansen; Thomas Sevenius Nilsen; Baeksan Yu et al. (2021). Locked and lonely? A longitudinal assessment of loneliness before and during the COVID-19 pandemic in Norway. (ekstern lenke)
• Linn Vathne Lervik; Asle Hoffart; Marit Knapstad et al. (2021). Exploring the temporal associations between avoidance behavior and cognitions during the course of cognitive behavioral therapy for clients with symptoms of social anxiety disorder. (ekstern lenke)
• Linn Lervik; Marit Knapstad; Robert Frans Otto Smith (2020). Process evaluation of Prompt Mental Health Care (PMHC): the Norwegian version of Improving Access to Psychological Therapies. (ekstern lenke)
• Solbjørg Makalani Myrtveit Sæther; Marit Knapstad; Nick Grey et al. (2020). Long-term outcomes of Prompt Mental Health Care: A randomized controlled trial. (ekstern lenke)
• Marit Knapstad; Solbjørg Makalani Myrtveit Sæther; Gunnel Hensing et al. (2020). Prompt Mental Health Care (PMHC): work participation and functional status at 12 months post-treatment. (ekstern lenke)
• Solbjørg Makalani Myrtveit; Kristin Gärtner Askeland; Ann Kristin Knudsen et al. (2019). Risky drinking among Norwegian students: Associations with participation in the introductory week, academic performance and alcohol-related attitudes. (ekstern lenke)
• Solbjørg Makalani Myrtveit Sæther; Marit Knapstad; Nick Grey et al. (2019). Twelve months post-treatment results from the Norwegian version of improving access to psychological therapies. (ekstern lenke)
• Børge Sivertsen; Morten Birkeland Nielsen; Ida E.H. Madsen et al. (2019). Sexual harassment and assault among university students in Norway. A cross-sectional prevalence study. (ekstern lenke)
• Jens Christoffer Skogen; Marit Knapstad; Otto Robert Frans Smith et al. (2019). Hvordan bør rekrutteringen til folkehelseundersøkelsene gjennomføres?. (ekstern lenke)
• Eirunn Thun; Børge Sivertsen; Marit Knapstad et al. (2019). Unravelling the prospective associations between mixed anxiety-depression and insomnia during the course of cognitive behavioral therapy. (ekstern lenke)
• Solbjørg Makalani Myrtveit Sæther; Marit Knapstad; Kristin Gärtner Askeland et al. (2019). Alcohol consumption, life satisfaction and mental health among Norwegian college and university students. (ekstern lenke)
• Børge Sivertsen; Mari Hysing; Marit Knapstad et al. (2019). Suicide attempts and non-suicidal self-harm among university students: Prevalence study. (ekstern lenke)
• Marit Knapstad; Børge Sivertsen; Ann Kristin Knudsen et al. (2019). Trends in self-reported psychological distress among college and university students from 2010 to 2018. (ekstern lenke)
• Marit Knapstad; Linn Vathne Lervik; Solbjørg Makalani Myrtveit Sæther et al. (2019). Effectiveness of prompt mental health care, the Norwegian version of improving access to psychological therapies: A randomized controlled trial. (ekstern lenke)
• Marit Knapstad; Tine Nordgreen; Otto Robert Frans Smith (2018). Prompt mental health care, the Norwegian version of IAPT: clinical outcomes and predictors of change in a multicenter cohort study. (ekstern lenke)
• Otto Robert Frans Smith; Daniele Evelin Alves; Marit Knapstad et al. (2017). Measuring mental well-being in Norway: validation of the Warwick-Edinburgh Mental Well-being Scale (WEMWBS). (ekstern lenke)
• Solbjørg Makalani Myrtveit; Kristin Gärtner Askeland; Marit Knapstad et al. (2016). The Norwegian student introductory week: who takes part, and is participation associated with better social integration and satisfaction among students?. (ekstern lenke)
• Marit Knapstad; Jesper Löve; Kristina Holmgren et al. (2016). Registry-based analysis of participator representativeness: a source of concern for sickness absence research?. (ekstern lenke)
• Solbjørg Makalani Myrtveit; Kristin Gärtner Askeland; Ann Kristin Knudsen et al. (2016). Risky drinking among Norwegian students: associations with participation in the introductory week, academic performance and alcohol-related attitudes. (ekstern lenke)
• Amie C. Hayley; Luke A. Downey; Con Stough et al. (2016). Social and emotional loneliness and self-reported difficulty initiating andmaintaining sleep (DIMS) in a sample of Norwegian university students. (ekstern lenke)
• Marit Knapstad; Simon Nygaard Øverland; Max Henderson et al. (2014). Shame among long-term sickness absentees: correlates and impact on subsequent sickness absence. (ekstern lenke)
• Jens Christoffer Skogen; Robert Stewart; Marit Knapstad et al. (2014). Early life factors in relation to cardiovacular disease in old age in Bergen: a Norwegian retrospective cohort study based on the Hordaland Study (HUSK). (ekstern lenke)
• Marit Knapstad; Kristina Holmgren; Gunnel Hensing et al. (2014). Previous sickness absence and current low perceived social support at work among employees in the general population: A historical cohort study. (ekstern lenke)
• Jens Christoffer Skogen; Robert Stewart; Arnstein Mykletun et al. (2013). An investigation of factors identified at birth in relation to anxiety and depression in old age: The Hordaland Health Study (HUSK). (ekstern lenke)
• Simon Nygaard Øverland; Marit Knapstad; Ingvard Wilhelmsen et al. (2011). Do gastrointestinal complaints increase the risk for subsequent medically certified long-term sickness absence? The HUSK study. (ekstern lenke)
• Rolf Reber; Pascal Wurtz; Marit Knapstad et al. (2010). Polarity correspondence in comparative number magnitude judgments. (ekstern lenke)

Vitenskapelig litteraturgjennomgang

• Tonje Catrin Hakvaag; Marit Knapstad; Jone Ravndal Bjørnestad et al. (2022). A scooping review of Scandinavian studies of sick-listed' and social insurance officers' experiences of their encounters'. (ekstern lenke)

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