Publications by authors named "Heiddis Valdimarsdottir"

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Assessing neurocognitive outcomes in PTSD: a multilevel meta-analytical approach.
Snaefridur Gudmundsdottir Aspelund, Hjordis Lilja Lorange, Thorhildur Halldorsdottir, Birna Baldursdottir, Heiddis Valdimarsdottir, Unnur Valdimarsdottir

Eur J Psychotraumatol· December 2025

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The Effects of Light Therapy on Cognitive Function and Stress in Women With Breast Cancer Before Systemic Treatment.
Snaefridur Gudmundsdottir Aspelund, Thorhildur Halldorsdottir, Gudjon Agustsson, Hannah Ros Sigurdardottir Tobin, Lisa M Wu, Heiddis B Valdimarsdottir

Cancer Med· November 2025

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Adolescent mental health before, during, and after the COVID-19 pandemic in Iceland: a repeated, cross-sectional, population-based study.
Erin Haskell, Berglind Sigmarsdottir, Ingibjorg Eva Thorisdottir, Audun Valborgarson, Elena Bonilla Aparicio, Heiddis Bjork Valdimarsdottir

Lancet Reg Health Eur· June 2025

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Effects of expressive helping writing during stem cell transplant: Randomized controlled trial.
Christine Rini, George Luta, Deniz Ozisik, Scott D Rowley, Annette L Stanton, Heiddis Valdimarsdottir

Health Psychol· April 2025

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Correction to: Biological and psychological predictors of cognitive function in breast cancer patients before surgery.
Snaefridur Gudmundsdottir Aspelund, Thorhildur Halldorsdottir, Gudjon Agustsson, Hannah Ros Sigurdardottir Tobin, Lisa M Wu, Heiddis B Valdimarsdottir

Support Care Cancer· April 2025

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Greater Social Isolation and Social Constraints Prior to Hematopoietic Stem Cell Transplant Are Associated with Greater Anxiety and Depressive Symptoms.
Layan Shahrour, Joseph Martinez, Anthony Chicaiza, Rahma Omar, Katrin Bovbjerg, Heiddis Valdimarsdottir

Int J Behav Med· June 2024

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Telephone versus in-person genetic counseling for hereditary cancer risk: Patient predictors of differential outcomes.
Savannah Binion, Lia J Sorgen, Beth N Peshkin, Heiddis Valdimarsdottir, Claudine Isaacs

J Telemed Telecare· February 2024

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A Virtual Reality Courtroom for Survivors of Sexual Violence: A Mixed-Method Pilot Study on Application Possibilities.
Rannveig Sigurvinsdottir, Hildur Skúladóttir, Hildur Fjóla Antonsdóttir, Paola Cardenas, Margrét Tórshamar Georgsdóttir

Violence Against Women· January 2024

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Biological and psychological predictors of cognitive function in breast cancer patients before surgery.
Snaefridur Gudmundsdottir Aspelund, Thorhildur Halldorsdottir, Gudjon Agustsson, Hannah Ros Sigurdardottir Tobin, Lisa M Wu, Heiddis B Valdimarsdottir

Support Care Cancer· January 2024

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The role of childhood adversity and prenatal mental health as psychosocial risk factors for adverse delivery and neonatal outcomes.
Hlin Kristbergsdottir, Heiddis Bjork Valdimarsdottir, Thora Steingrimsdottir, Rannveig Sigurvinsdottir, Sigurgrimur Skulason

Gen Hosp Psychiatry· December 2023

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Psychometric evaluation of an Icelandic translation of the adolescent and parent report versions of the BATH pain questionnaires and investigation of the psychosocial impact of pain on adolescents with chronic disease.
Drifa B Gudmundsdottir, Berglind Brynjolfsdottir, Silja B Halldorsdottir, Halla R Halldórsdóttir, Sigrún Thorsteinsdottir, Heiðdís Valdimarsdottir

Scand J Psychol· October 2023

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Psychobiological stress response to a lung cancer diagnosis: a prospective study of patients in Iceland and Sweden.
Hronn Hardardottir, Thor Aspelund, Katja Fall, Erika Broström, Baldur B Sigurdsson, Heiddis Valdimarsdottir, Unnur A Valdimarsdottir

Acta Oncol· October 2023

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Effect of the COVID-19 pandemic on adolescent mental health and substance use up to March, 2022, in Iceland: a repeated, cross-sectional, population-based study.
Ingibjorg Eva Thorisdottir, Gudjon Agustsson, Saeunn Yr Oskarsdottir, Alfgeir Logi Kristjansson, Bryndis Bjork Asgeirsdottir, Heiddis Bjork Valdimarsdottir

Lancet Child Adolesc Health· May 2023

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An Adaptation, Extension and Pre-Testing of an Interactive Decision Aid for Men Diagnosed with Localized Prostate Cancer in Iceland: A Mixed-Method Study.
Valgerdur Kristin Eiriksdottir, Thordis Jonsdottir, Heiddis B Valdimarsdottir, Kathryn L Taylor, Marc D Schwartz

Behav Med· April 2023

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Examining the Efficacy of Bright Light Therapy on Cognitive Function in Hematopoietic Stem Cell Transplant Survivors.
Lisa M Wu, Heiddis B Valdimarsdottir, Ali Amidi, Kathryn J Reid, Sonia Ancoli-Israel

J Biol Rhythms· October 2022

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Optimizing use of written peer support as a supportive resource in cancer: Focus group insights.
Christine Rini, Margaret Waltz, Katrin Bovbjerg, David Farrell, Betina Yanez, Heiddis Valdimarsdottir

Psychooncology· September 2022

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Psychosocial impact of proactive rapid genetic counseling following breast cancer diagnosis.
Rachel Kritzik, Edidiong Usoro, Beth N Peshkin, Claudine Isaacs, Heiddis B Valdimarsdottir

Psychooncology· May 2022

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How Much Information Do Icelandic Men Receive on Pros and Cons of Prostate-Specific Antigen Testing Prior to Undergoing Testing?
Valgerdur Kristin Eiriksdottir, Birna Baldursdottir, Jon Orn Fridriksson, Heiddis B Valdimarsdottir

Am J Mens Health· May 2022

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Optimal communication associated with lower risk of acute traumatic stress after lung cancer diagnosis.
Hronn Hardardottir, Thor Aspelund, Jianwei Zhu, Katja Fall, Arna Hauksdottir, Heiddis Valdimarsdottir, Unnur A Valdimarsdottir

Support Care Cancer· January 2022

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Efficacy of expressive helping in adult hematologic cancer patients undergoing stem cell transplant: protocol for the Writing for Insight, Strength, and Ease (WISE) study's two-arm randomized controlled trial.
Lauren Whitmore, Taylor Schulte, Katrin Bovbjerg, Madison Hartstein, Jane Austin, Heiddis Valdimarsdottir

Trials· October 2021

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Light Therapy for Cancer-Related Fatigue in (Non-)Hodgkin Lymphoma Survivors: Results of a Randomized Controlled Trial.
Daniëlle E J Starreveld, Laurien A Daniels, Jacobien M Kieffer, Heiddis B Valdimarsdottir, Jessie de Geus

Cancers (Basel)· September 2021

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Depressive symptoms, mental wellbeing, and substance use among adolescents before and during the COVID-19 pandemic in Iceland: a longitudinal, population-based study.
Ingibjorg Eva Thorisdottir, Bryndis Bjork Asgeirsdottir, Alfgeir Logi Kristjansson, Heiddis Bjork Valdimarsdottir, Erla Maria Jonsdottir Tolgyes

Lancet Psychiatry· August 2021

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Evaluation of mechanism of change in transdiagnostic cognitive behaviour therapy using single case experimental design.
Magnus Blondahl Sighvatsson, Paul M Salkovskis, Engilbert Sigurdsson, Heiddis B Valdimarsdottir, Fanney Thorsdottir

J Behav Ther Exp Psychiatry· June 2021

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Cancer-related Fatigue in Relation to Chronotype and Sleep Quality in (Non-)Hodgkin Lymphoma Survivors.
Daniëlle E J Starreveld, G Esther A Habers, Heiddis B Valdimarsdottir, Rob Kessels, Laurien A Daniëls

J Biol Rhythms· February 2021

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