K. Bjordal

S. Kaasa, M. Sullivan, K. Bjordal, 1997, Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery.

The European Organization for Research and Treatment of Cancer approach to developing questionnaire modules: an update and overview. EORTC Quality of Life Study Group.

N. Aaronson, K. Bjordal, M. Groenvold, 1998 .

Palliative brachytherapy with or without primary stent placement in patients with oesophageal cancer, a randomised phase III trial.

K. Bjordal, T. Warloe, B. Sandstad, 2013, Radiotherapy and oncology : journal of the European Society for Therapeutic Radiology and Oncology.

Psychological distress in head and neck cancer patients 7-11 years after curative treatment.

S. Kaasa, K. Bjordal, 1995, British Journal of Cancer.

Self-reported satisfaction with life and physical health in long-term cancer survivors and a matched control group.

S. Kaasa, K. Bjordal, A. Mastekaasa, 1995, European journal of cancer. Part B, Oral oncology.

Characteristics and implications of attrition in health-related quality of life studies in palliative care

S. Kaasa, K. Bjordal, M. Ahlner‐Elmqvist, 2009, Palliative medicine.

A multicenter international prospective study of the validity and reliability of a COVID-19-specific health-related quality of life questionnaire

K. Bjordal, A. Bottomley, A. Darlington, 2022, Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation.

Improved treatment decisions in patients with esophageal cancer

K. Bjordal, T. Warloe, A. Jacobsen, 2017, Acta oncologica.

Special Paper Quality of life evaluation in oncological clinical trials — the EORTC model

N. Aaronson, K. Bjordal, M. Sprangers, 2000 .

Associations between patient-reported late effects and systemic cytokines in long-term survivors of head and neck cancer treated with radiotherapy

K. Bjordal, E. Dale, C. Kiserud, 2022, Journal of Cancer Survivorship.

Side effects and quality of life after inadvertent radiation overdosage in brachytherapy of head-and-neck cancer.

K. Bjordal, D. Olsen, B. Knutsen, 2002, International journal of radiation oncology, biology, physics.

Development of a European Organization for Research and Treatment of Cancer (EORTC) questionnaire module to be used in quality of life assessments in head and neck cancer patients. EORTC Quality of Life Study Group.

S. Kaasa, K. Bjordal, D. Razavi, 1994, Acta oncologica.

Self‐reported prevalence, etiology, and characteristics of pain in oncology outpatients

K. Bjordal, S. Paul, C. Miaskowski, 2008, European journal of pain.

The relationships between mood disturbances and pain, hope, and quality of life in hospitalized cancer patients with pain on regularly scheduled opioid analgesic.

K. Bjordal, S. Paul, C. Miaskowski, 2010, Journal of palliative medicine.

The relationship between hope and pain in a sample of hospitalized oncology patients

K. Bjordal, S. Paul, C. Miaskowski, 2008, Palliative and Supportive Care.

Health care providers underestimate symptom intensities of cancer patients: A multicenter European study

S. Kaasa, K. Bjordal, M. Sprangers, 2010, Health and quality of life outcomes.

Health care providers underestimate symptom intensities of cancer patients : A multicenter

S. Kaasa, K. Bjordal, M. Sprangers, 2010 .

K. Bjordal, A. Bottomley, S. Wheelwright, 2021, Quality of Life Research.

Quality of Life and Head and Neck Cancer: A 5 Year Prospective Study

K. Bjordal, M. Boysen, E. Hammerlid, 2005, The Laryngoscope.

EORTC QLQ-C30 Scoring Manual

Andrew Bottomley, Desmond Curran, Peter Fayers, 1995 .

A 12 country field study of the EORTC QLQ-C30 (version 3.0) and the head and neck cancer specific module (EORTC QLQ-H&N35) in head and neck patients. EORTC Quality of Life Group.

P. Fayers, S. Kaasa, K. Bjordal, 2000, European journal of cancer.

Quality of life in head and neck cancer patients: validation of the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire-H&N35.

P. Fayers, S. Kaasa, K. Bjordal, 1999, Journal of clinical oncology : official journal of the American Society of Clinical Oncology.

Test/retest study of the European Organization for Research and Treatment of Cancer Core Quality-of-Life Questionnaire.

S. Fosså, M. Hjermstad, S. Kaasa, 1995, Journal of clinical oncology : official journal of the American Society of Clinical Oncology.

Prospective, Longitudinal Quality-of-Life Study of Patients With Head and Neck Cancer: A Feasibility Study Including the EORTC QLQ-C30

S. Kaasa, M. Sullivan, K. Bjordal, 1997, Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery.

International field testing of the psychometric properties of an EORTC quality of life module for oral health: the EORTC QLQ-OH15

N. Yarom, M. Hjermstad, K. Bjordal, 2016, Supportive Care in Cancer.

Symptom burden and patient characteristics: Association with quality of life in patients with head and neck cancer undergoing radiotherapy

K. Bjordal, T. Rustøen, J. M. Gran, 2017, Head & neck.

P. Fayers, M. Hjermstad, S. Kaasa, 1998, Journal of clinical oncology : official journal of the American Society of Clinical Oncology.

Quality of life in oral carcinoma: A 5‐year prospective study

K. Bjordal, M. Boysen, E. Hammerlid, 2008, Head & neck.

Psychometric validation of the EORTC Core Quality of Life Questionnaire, 30-item version and a diagnosis-specific module for head and neck cancer patients.

S. Kaasa, K. Bjordal, 1992, Acta oncologica.

Patient self-reported and clinician-rated quality of life in head and neck cancer patients: a cross-sectional study.

S. Kaasa, K. Bjordal, A. Freng, 1995, European journal of cancer. Part B, Oral oncology.

Making Advances in Quality of Life Studies in Head and Neck Cancer.

K. Bjordal, A. Bottomley, 2017, International journal of radiation oncology, biology, physics.

Baseline quality of life as a prognostic indicator of survival: a meta-analysis of individual patient data from EORTC clinical trials.

Murielle Mauer, Corneel Coens, Andrew Bottomley, 2009, The Lancet. Oncology.

Methodological approach for determining the Minimal Important Difference and Minimal Important Change scores for the European Organisation for Research and Treatment of Cancer Head and Neck Cancer Module (EORTC QLQ-HN43) exemplified by the Swallowing scale

N. Yarom, K. Bjordal, W. Chie, 2021, Quality of Life Research.

Patient factors and quality of life outcomes differ among four subgroups of oncology patients based on symptom occurrence

K. Bjordal, I. Vistad, C. Miaskowski, 2017, Acta oncologica.

A global analysis of multitrial data investigating quality of life and symptoms as prognostic factors for survival in different tumor sites

D. Osoba, M. Taphoorn, C. Gotay, 2014, Cancer.

A Prospective Study of Quality of Life in Head and Neck Cancer Patients. Part II: Longitudinal Data

S. Kaasa, K. Bjordal, M. Boysen, 2001, The Laryngoscope.

A Prospective Study of Quality of Life in Head and Neck Cancer Patients. Part I: At Diagnosis

S. Kaasa, M. Sullivan, K. Bjordal, 2001, The Laryngoscope.

A prospective multicentre study in Sweden and Norway of mental distress and psychiatric morbidity in head and neck cancer patients

S. Kaasa, M. Sullivan, K. Bjordal, 1999, British Journal of Cancer.

Influences on the pharmacokinetics of oxycodone: a multicentre cross-sectional study in 439 adult cancer patients

S. Kaasa, K. Bjordal, P. Klepstad, 2010, European Journal of Clinical Pharmacology.

Influence from genetic variability on opioid use for cancer pain: A European genetic association study of 2294 cancer pain patients

P. Fayers, M. Maltoni, S. Kaasa, 2011, PAIN.

Prognostic factors in patients with nasopharyngeal carcinoma.

S. Kaasa, K. Bjordal, O. Monge, 1993, Acta oncologica.

Efficacy and safety of baricitinib in hospitalized adults with severe or critical COVID-19 (Bari-SolidAct): a randomised, double-blind, placebo-controlled phase 3 trial

Inge Christoffer Olsen, F. Lund-Johansen, Mariana H. S. Bernardo, 2023, Critical Care.

EORTC QLQ‐INFO26: a questionnaire to assess information given to cancer patients a preliminary analysis in eight countries

K. Bjordal, B. Holzner, Y. Yun, 2007, Psycho-oncology.

EORTC QLQ-C30 Scoring Manual (2nd edition)

Desmond Curran, Peter Fayers, Mogens Grønvold, 1999 .

Changes in and predictors of pain characteristics in patients with head and neck cancer undergoing radiotherapy

Christine Miaskowski, K. Bjordal, S. Paul, 2015, Pain.

Do CYP2D6 genotypes reflect oxycodone requirements for cancer patients treated for cancer pain? A cross-sectional multicentre study

S. Kaasa, K. Bjordal, P. Klepstad, 2011, European Journal of Clinical Pharmacology.

The European Organization for Research and treatment of cancer approach to quality of life assessment: guidelines for developing questionnaire modules

N. Aaronson, K. Bjordal, M. Groenvold, 1993, Quality of Life Research.

Quality of life in head and neck cancer patients after surgical resection: translation into Cantonese and validation of the EORTC QLQ-H&N35

K. Bjordal, S. Cheung, W. Bower, 2009, Acta oto-laryngologica.

Impact of quality of life measurement in daily clinical practice.

K. Bjordal, K Bjordal, 2004, Annals of oncology : official journal of the European Society for Medical Oncology.

The effects of age on health-related quality of life in cancer populations: A pooled analysis of randomized controlled trials using the European Organisation for Research and Treatment of Cancer (EORTC) QLQ-C30 involving 6024 cancer patients.

M. Taphoorn, B. Reeve, K. Bjordal, 2015, European journal of cancer.

A Longitudinal Study of Depressive Symptoms in Patients With Head and Neck Cancer Undergoing Radiotherapy

K. Bjordal, S. Paul, C. Miaskowski, 2015, Cancer nursing.

EORTC quality of life study grouptranslation procedure

N. Aaronson, K. Bjordal, M. Sprangers, 1998 .

Serious Long-Term Effects of Head and Neck Cancer from the Survivors’ Point of View

K. Bjordal, I. V. Verdonck‐de Leeuw, F. Jansen, 2023, Healthcare.

Demographic, clinical, and pain characteristics are associated with average pain severity groups in a sample of oncology outpatients.

K. Bjordal, S. Paul, C. Miaskowski, 2008, The journal of pain : official journal of the American Pain Society.

K. Bjordal, M. Boysen, E. Hammerlid, 2006, Head & neck.

K. Bjordal, M. Boysen, E. Hammerlid, 2003, International journal of radiation oncology, biology, physics.

A Prospective Longitudinal Quality of Life Study of Patients with Head and Neck Cancer

M. Sullivan, K. Bjordal, T. Westin, 1995 .

Previous Chemotherapy Influences the Symptom Experience and Quality of Life of Women With Breast Cancer Prior to Radiation Therapy

K. Bjordal, C. Miaskowski, T. Rustøen, 2012, Cancer nursing.

Do CYP2D6 genotypes reflect oxycodone requirements for cancer patients treated for cancer pain? A cross-sectional multicentre study

S. Kaasa, K. Bjordal, P. Klepstad, 2011, European Journal of Clinical Pharmacology.

Characteristics and quality of life of patients who choose home care at the end of life.

S. Kaasa, K. Bjordal, M. Ahlner‐Elmqvist, 2008, Journal of pain and symptom management.

The European Organization for Research and Treatment of Cancer Approach to Developing Questionnaire Modules: An Update and Overview

N. Aaronson, K. Bjordal, M. Groenvold, 1998, Quality of Life Research.

Assessing the consistency of psychometric properties of the HRQoL scales within the EORTC QLQ-C30 across populations by means of the Mokken Scaling Model

S. Kaasa, K. Bjordal, M. Hjermstad, 2004, Quality of Life Research.

S. Kaasa, K. Bjordal, M. Jannert, 2009, Supportive Care in Cancer.

Prevalence Rates for and Predictors of Self-reported Adherence of Oncology Outpatients With Analgesic Medications

K. Bjordal, C. Miaskowski, T. Rustøen, 2008, The Clinical journal of pain.

Changes over time in occurrence, severity, and distress of common symptoms during and after radiation therapy for breast cancer.

K. Bjordal, C. Miaskowski, T. Rustøen, 2013, Journal of pain and symptom management.

Cancer patients' diagnosis and symptoms and their family caregivers' self-efficacy and social support are associated with different caregiver reactions.

K. Bjordal, T. Rustøen, Kristin Hofsø, 2020, European journal of cancer care.

Differences in the use of pain coping strategies between oncology inpatients with mild vs. moderate to severe pain.

K. Bjordal, S. Paul, C. Miaskowski, 2009, Journal of pain and symptom management.

Confirmatory Factor Analysis of the Coping Strategies Questionnaire-Revised in Samples of Oncology Outpatients and Inpatients With Pain

K. Bjordal, C. Miaskowski, T. Rustøen, 2009, The Clinical journal of pain.

K. Bjordal, A. Bottomley, S. Wheelwright, 2022, Journal of Patient-Reported Outcomes.

Using reference data on quality of life--the importance of adjusting for age and gender, exemplified by the EORTC QLQ-C30 (+3).

P. Fayers, S. Kaasa, K. Bjordal, 1998, European journal of cancer.

The effects of age on health-related quality of life in cancer populations: a pooled analysis of randomized controlled trials using the EORTC QLQ- C30 involving 6,106 cancer patients

K. Bjordal, C. Quinten, J. Ringash, 2017 .

Quality of life evaluation in oncological clinical trials - the EORTC model. The EORTC Quality of Life Study Group.

N. Aaronson, K. Bjordal, M. Sprangers, 2000, European journal of cancer.

Clinical impact versus factor analysis for quality of life questionnaire construction.

D J Hand, P M Fayers, D. Hand, 1998, Journal of clinical epidemiology.

Is oxycodone efficacy reflected in serum concentrations? A multicenter, cross-sectional study in 456 adult cancer patients.

S. Kaasa, K. Bjordal, P. Klepstad, 2012, Journal of pain and symptom management.

The relationships between demographic and clinical characteristics and quality of life during and after radiotherapy: in women with breast cancer

K. Bjordal, L. Diep, T. Rustøen, 2014, Quality of Life Research.

Comparing the use of patient-reported outcomes in clinical studies in Europe in 2008 and 2018: a literature review

K. Bjordal, K. Stavem, T. Bernklev, 2021, Quality of Life Research.

Impact of hyperfractionated re-irradiation on quality of life in patients with recurrent or second primary head and neck cancer, a prospective single institutional study

K. Bjordal, E. Dale, S. Johansen, 2023, Clinical and translational radiation oncology.

Changes in and predictors of pain characteristics in patients with head and neck cancer undergoing radiotherapy

K. Bjordal, S. Paul, C. Miaskowski, 2015, Pain.

Radical treatment for oesophageal cancer patients unfit for surgery and chemotherapy. A 10-year experience from the Norwegian Radium Hospital

K. Bjordal, T. Warloe, B. Sandstad, 2010, Acta oncologica.

Differences in the use of pain coping strategies between oncology inpatients with mild vs. moderate to severe pain.

K. Bjordal, S. Paul, C. Miaskowski, 2009, Journal of pain and symptom management.

Radiation-induced long-term dysphagia in survivors of head and neck cancer and association with dose-volume parameters.

K. Bjordal, E. Dale, Bente Brokstad Herlofson, 2023, Radiotherapy and oncology : journal of the European Society for Therapeutic Radiology and Oncology.