27 results on '"Groenvold M"'
Search Results
2. Patient-reported outcome measures for physical function in cancer patients: content comparison of the EORTC CAT Core, EORTC QLQ-C30, SF-36, FACT-G, and PROMIS measures using the International Classification of Functioning, Disability and Health
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Schurr, T, Loth, F, Lidington, E, Piccinin, C, Arraras, JI, Groenvold, M, Holzner, B, van Leeuwen, M, Petersen, MA, Schmidt, H, Young, T, and Giesinger, JM
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- 2023
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3. Missing not at random in end of life care studies
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Carreras G., Miccinesi G., Wilcock A., Preston N., Nieboer D., Deliens L., Groenvold M., Lunder U., van der Heide A., Baccini M., Korfage I. J., Rietjens J. A. C., Jabbarian L. J., Polinder S., van Delden H., Kars M., Zwakman M., Verkissen M. N., Eecloo K., Faes K., Pollock K., Seymour J., Caswell G., Bramley L., Payne S., Dunleavy L., Sowerby E., Bulli F., Ingravallo F., Toccafondi A., Gorini G., Cerv B., Simonic A., Mimic A., Kodba-Ceh H., Ozbic P., Arnfeldt C., Thit Johnsen A., Family Medicine and Chronic Care, End-of-life Care Research Group, Carreras G., Miccinesi G., Wilcock A., Preston N., Nieboer D., Deliens L., Groenvold M., Lunder U., van der Heide A., Baccini M., Korfage I.J., Rietjens J.A.C., Jabbarian L.J., Polinder S., van Delden H., Kars M., Zwakman M., Verkissen M.N., Eecloo K., Faes K., Pollock K., Seymour J., Caswell G., Bramley L., Payne S., Dunleavy L., Sowerby E., Bulli F., Ingravallo F., Toccafondi A., Gorini G., Cerv B., Simonic A., Mimic A., Kodba-Ceh H., Ozbic P., Arnfeldt C., Thit Johnsen A., and Public Health
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Advance care planning ,Quality of life ,Epidemiology ,Missing data ,MODELS ,POWER ,Health Informatics ,Disease cluster ,01 natural sciences ,law.invention ,010104 statistics & probability ,03 medical and health sciences ,missing data ,0302 clinical medicine ,Quality of life (healthcare) ,LUNG-CANCER ,Randomized controlled trial ,SDG 3 - Good Health and Well-being ,law ,QUALITY-OF-LIFE ,Statistics ,Medicine and Health Sciences ,Humans ,030212 general & internal medicine ,Imputation (statistics) ,0101 mathematics ,advance care planning ,Quality Of Life ,Terminal Care ,lcsh:R5-920 ,Models, Statistical ,RANDOM FOREST ,MNAR ,3. Good health ,Random forest ,MICE ,MAR ,Action study ,Oncology ,Research Design ,oncology ,Psychology ,lcsh:Medicine (General) ,Research Article - Abstract
Background Missing data are common in end-of-life care studies, but there is still relatively little exploration of which is the best method to deal with them, and, in particular, if the missing at random (MAR) assumption is valid or missing not at random (MNAR) mechanisms should be assumed. In this paper we investigated this issue through a sensitivity analysis within the ACTION study, a multicenter cluster randomized controlled trial testing advance care planning in patients with advanced lung or colorectal cancer. Methods Multiple imputation procedures under MAR and MNAR assumptions were implemented. Possible violation of the MAR assumption was addressed with reference to variables measuring quality of life and symptoms. The MNAR model assumed that patients with worse health were more likely to have missing questionnaires, making a distinction between single missing items, which were assumed to satisfy the MAR assumption, and missing values due to completely missing questionnaire for which a MNAR mechanism was hypothesized. We explored the sensitivity to possible departures from MAR on gender differences between key indicators and on simple correlations. Results Up to 39% of follow-up data were missing. Results under MAR reflected that missingness was related to poorer health status. Correlations between variables, although very small, changed according to the imputation method, as well as the differences in scores by gender, indicating a certain sensitivity of the results to the violation of the MAR assumption. Conclusions The findings confirmed the importance of undertaking this kind of analysis in end-of-life care studies.
- Published
- 2021
4. Validation of the Danish version of the disease specific instrument EORTC QLQ-CR38 to assess Health-related quality of life in patients with colorectal cancer.
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Vind Thaysen, Henriette, Jess, P., Laurberg, S›ren, and Groenvold, M.
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COLON cancer ,CANCER treatment ,CANCER chemotherapy ,SELF-perception ,GASTROINTESTINAL system - Abstract
Background: The European Organisation for Research and Treatment of Cancer (EORTC) quality of life colorectal questionnaire module (QLQ-CR38) was developed in 1999, and an update, the QLQ CR29 was published recently. To date the Danish version of the questionnaire has not been validated. The aim of this study was to examine the psychometric properties of the Danish version of EORTC QLQ-CR38. Methods: EORTC QLQ-CR38 was administered to 190 patients with colorectal cancer in two Danish hospitals, one month after their operation. A psychometric evaluation of the questionnaire's structure, reliability, convergent, divergent and known-groups validity was performed. Results: Data from 164 (86.3%) patients were available for analysis. The Danish version of EORTC QLQ-CR38 showed satisfactory psychometric properties for the scales: body image, sexual functioning, male sexual problems and defecations problems. Suboptimal psychometric performances were found for the scales: micturition problems, symptoms of the gastrointestinal tract and weight loss. Evaluation of the psychometric properties of the scale chemotherapy side effects was limited by the low number of patients receiving chemotherapy. It was not possible to assess the psychometric properties of the scale female sexual problems and the single item sexual enjoyment due to a high number of missing values. The homogeneity of the study population made the evaluation of known-group validity difficult. Conclusions: The results of this study suggest that the validity of the Danish version of EORTC QLQ-CR38 is acceptable. Furthermore, the results support the appropriateness of the updated version, the EORTC QLQ-CR29. [ABSTRACT FROM AUTHOR]
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- 2012
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5. Differential item functioning (DIF) analyses of health-related quality of life instruments using logistic regression.
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Scott NW, Fayers PM, Aaronson NK, Bottomley A, de Graeff A, Groenvold M, Gundy C, Koller M, Petersen MA, Sprangers MA, EORTC Quality of Life Group and the Quality of Life Cross-Cultural Meta-Analysis Group, Scott, Neil W, Fayers, Peter M, Aaronson, Neil K, Bottomley, Andrew, de Graeff, Alexander, Groenvold, Mogens, Gundy, Chad, Koller, Michael, and Petersen, Morten A
- Abstract
Background: Differential item functioning (DIF) methods can be used to determine whether different subgroups respond differently to particular items within a health-related quality of life (HRQoL) subscale, after allowing for overall subgroup differences in that scale. This article reviews issues that arise when testing for DIF in HRQoL instruments. We focus on logistic regression methods, which are often used because of their efficiency, simplicity and ease of application.Methods: A review of logistic regression DIF analyses in HRQoL was undertaken. Methodological articles from other fields and using other DIF methods were also included if considered relevant.Results: There are many competing approaches for the conduct of DIF analyses and many criteria for determining what constitutes significant DIF. DIF in short scales, as commonly found in HRQL instruments, may be more difficult to interpret. Qualitative methods may aid interpretation of such DIF analyses.Conclusions: A number of methodological choices must be made when applying logistic regression for DIF analyses, and many of these affect the results. We provide recommendations based on reviewing the current evidence. Although the focus is on logistic regression, many of our results should be applicable to DIF analyses in general. There is a need for more empirical and theoretical work in this area. [ABSTRACT FROM AUTHOR]- Published
- 2010
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6. Testing the feasibility of the Dignity Therapy interview: adaptation for the Danish culture.
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Houmann LJ, Rydahl-Hansen S, Chochinov HM, Kristjanson LJ, and Groenvold M
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- 2010
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7. Collaborating with cancer patients and informal caregivers in a European study on quality of life: protocol to embed patient and public involvement within the EUonQoL project.
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Engelaar M, Bos N, van Schelven F, Lorenzo I Sunyer N, Couespel N, Apolone G, Brunelli C, Caraceni A, Ferrer M, Groenvold M, Kaasa S, Ciliberto G, Lombardo C, Pietrobon R, Pravettoni G, Sirven A, Vachon H, Gilbert A, and Rademakers J
- Abstract
Background: Patient and public involvement (PPI) has become an essential part of health research. There is a need for genuine involvement in order to ensure that research is relevant to patients. This can then improve the quality, relevance, and impact of health research, while at the same time reducing wasted research and in doing so bringing science and society closer together. Despite the increasing attention for this involvement, it is not yet common practice to report on proposed activities. An article reporting planned PPI could provide guidance and inspiration for the wider academic community in future activities. Therefore, this current article aims to describe the way in which PPI principles are incorporated in the research project called "Quality of Life in Oncology: measuring what matters for cancer patients and survivors in Europe (EUonQoL)." This project aims to develop a new set of questionnaires to enable cancer patients to assess their quality of life, entitled the EUonQoL-Kit., Methods: The first step is to recruit cancer patients and their informal caregivers as co-researchers in order to train them to collaborate with the researchers. Based on their skills and preferences, they are then assigned to several of the project's work packages. Their individual roles, tasks, and responsibilities regarding the work packages, to which they have been assigned, are evaluated and adapted when necessary. The impact of their involvement is evaluated by both the researchers and co-researchers., Discussion: PPI is a complex and dynamic process. As such, the overall structure of the research may be defined while at the same time leaving room for certain aspects to be filled in later. Our research is, we believe, relevant as co-researcher involvement in such a large European project as EUonQoL is a new development., (© 2024. The Author(s).)
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- 2024
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8. Acceptability and usefulness of the EORTC 'Write In three Symptoms/Problems' (WISP): a brief open-ended instrument for symptom assessment in cancer patients.
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Rojas-Concha L, Arrarrás JI, Conroy T, Chalk T, Guberti M, Holzner B, Husson O, Kuliś D, Shamieh O, Piccinin C, Puga MJ, Rohde G, and Groenvold M
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- Humans, Symptom Assessment, Palliative Care, Pain, Surveys and Questionnaires, Quality of Life, Neoplasms
- Abstract
Background: The use of open-ended questions supplementing static questionnaires with closed questions may facilitate the recognition of symptoms and toxicities. The open-ended 'Write In three Symptoms/Problems (WISP)' instrument permits patients to report additional symptoms/problems not covered by selected EORTC questionnaires. We evaluated the acceptability and usefulness of WISP with cancer patients receiving active and palliative care/treatment in Austria, Chile, France, Jordan, the Netherlands, Norway, Spain and the United Kingdom., Methods: We conducted a literature search on validated instruments for cancer patients including open-ended questions and analyzing their responses. WISP was translated into eight languages and pilot tested. WISP translations were pre-tested together with EORTC QLQ-C30, QLQ-C15-PAL and relevant modules, followed by patient interviews to evaluate their understanding about WISP. Proportions were used to summarize patient responses obtained from interviews and WISP., Results: From the seven instruments identified in the literature, only the free text collected from the PRO-CTAE has been analyzed previously. In our study, 161 cancer patients participated in the pre-testing and interviews (50% in active treatment). Qualitative interviews showed high acceptability of WISP. Among the 295 symptoms/problems reported using WISP, skin problems, sore mouth and bleeding were more prevalent in patients in active treatment, whereas numbness/tingling, dry mouth and existential problems were more prevalent in patients in palliative care/treatment., Conclusions: The EORTC WISP instrument was found to be acceptable and useful for symptom assessment in cancer patients. WISP improves the identification of symptoms/problems not assessed by cancer-generic questionnaires and therefore, we recommend its use alongside the EORTC questionnaires., (© 2024. The Author(s).)
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- 2024
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9. Effectiveness of a nurse-delivered (FOCUS+) and a web-based (iFOCUS) psychoeducational intervention for people with advanced cancer and their family caregivers (DIAdIC): study protocol for an international randomized controlled trial.
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Matthys O, De Vleminck A, Dierickx S, Deliens L, Van Goethem V, Lapeire L, Groenvold M, Lund L, Arnfeldt CM, Sengeloev L, Pappot H, Johnsen AT, Guerin S, Larkin PJ, Jordan C, Connolly M, D'Alton P, Costantini M, Di Leo S, Guberti M, Turola E, van der Heide A, Witkamp E, Rietjens J, van der Wel M, Brazil K, Prue G, Reid J, Scott D, Bristowe K, Harding R, Normand C, May P, Cronin C, Northouse L, Hudson P, and Cohen J
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- Humans, Internet, Multicenter Studies as Topic, Psychosocial Support Systems, Quality of Life, Randomized Controlled Trials as Topic, Caregivers, Neoplasms therapy
- Abstract
Background: Worldwide, millions of people with advanced cancer and their family caregivers are experiencing physical and psychological distress. Psychosocial support and education can reduce distress and prevent avoidable healthcare resource use. To date, we lack knowledge from large-scale studies on which interventions generate positive outcomes for people with cancer and their informal caregivers' quality of life. This protocol describes the DIAdIC study that will evaluate the effectiveness of two psychosocial and educational interventions aimed at improving patient-family caregiver dyads' emotional functioning and self-efficacy., Methods: We will conduct an international multicenter three-arm randomized controlled trial in Belgium, Denmark, Ireland, Italy, The Netherlands, and the United Kingdom. In each country, 156 dyads (936 in total) of people with advanced cancer and their family caregiver will be randomized to one of the study arms: 1) a nurse-led face-to-face intervention (FOCUS+), 2) a web-based intervention (iFOCUS) or 3) a control group (care as usual). The two interventions offer tailored psychoeducational support for patient-family caregiver dyads. The nurse-led face-to-face intervention consists of two home visits and one online video session and the web-based intervention is completed independently by the patient-family caregiver dyad in four online sessions. The interventions are based on the FOCUS intervention, developed in the USA, that addresses five core components: family involvement, optimistic outlook, coping effectiveness, uncertainty reduction, and symptom management. The FOCUS intervention will be adapted to the European context. The primary outcomes are emotional functioning and self-efficacy of the patient and the family caregiver, respectively. The secondary outcomes are quality of life, benefits of illness, coping, dyadic communication, and ways of giving support of the patient and family caregiver., Discussion: DIAdIC aims to develop cost-effective interventions that integrate principles of early palliative care into standard care. The cross-country setup in six European countries allows for comparison of effectiveness of the interventions in different healthcare systems across Europe. By focusing on empowerment of the person with cancer and their family caregiver, the results of this RCT can contribute to the search for cost-effective novel interventions that can relieve constraints on professional healthcare., Trial Registration: Registration on ClinicalTrials.gov on 12/11/2020, identifier NCT04626349 ., Date and Version Identifier: 20211209_DIAdIC_Protocol_Article., (© 2021. The Author(s).)
- Published
- 2021
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10. Regional and age differences in specialised palliative care for patients with pancreatic cancer.
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Adsersen M, Chen IM, Rasmussen LS, Johansen JS, Nissen M, Groenvold M, and Marsaa K
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- Adolescent, Hospitalization, Humans, Palliative Care, Referral and Consultation, Hospice and Palliative Care Nursing, Pancreatic Neoplasms therapy
- Abstract
Background: Despite national recommendations, disparities in specialised palliative care (SPC) admittance have been reported. The aims of this study were to characterize SPC admittance in patients with pancreatic cancer in relation to region of residence and age., Method: The data sources were two nationwide databases: Danish Pancreatic Cancer Database and Danish Palliative Care Database. The study population included patients (18+ years old) diagnosed with pancreatic cancer from 2011 to 2018. We investigated admittance to SPC, and time from diagnosis to referral to SPC and first contact with SPC to death by region of residence and age., Results: In the study period (N = 5851) admittance to SPC increased from 44 to 63%. The time from diagnosis to referral to SPC increased in the study period and overall, the median time was 67 days: three times higher in Southern (92 days) than in North Denmark Region. The median number of days from diagnosis to referral to SPC was lower in patients ≥70 years (59 days) vs patients < 70 years (78 days), with regional differences between the age groups. Region of residence and age were associated with admittance to SPC; highest for patients in North Denmark Region vs Capital Region (OR = 2.03 (95%CI 1.67-2.48)) and for younger patients (< 60 years vs 80+ years) (OR = 2.54 (95%CI 2.05-3.15)). The median survival from admittance to SPC was 35 days: lowest in Southern (30 days) and highest in North Denmark Region (41 days). The median number of days from admittance to SPC to death was higher in patients < 70 years (40 days) vs ≥ 70 years (31 days), with a difference between age groups in the regions of 1-14 days., Conclusions: From 2011 to 2018 more patients with pancreatic cancer than previously were admitted to SPC, with marked differences between regions of residence and age groups. The persistently short period of time the patients are in SPC raises concern that early integrated palliative care is not fully integrated into the Danish healthcare system for patients with pancreatic cancer, with the risk that the referral comes so late that the patients do not receive the full benefit of the SPC., (© 2021. The Author(s).)
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- 2021
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11. Investigating the response scale of the EORTC QLQ-C30 in German cancer patients and a population survey.
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Koller M, Müller K, Nolte S, Schmidt H, Harvey C, Mölle U, Boehm A, Engeler D, Metzger J, Sztankay M, Holzner B, Groenvold M, Kuliś D, and Bottomley A
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- Germany, Humans, Surveys and Questionnaires, Neoplasms, Quality of Life
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Background: The European Organization for research and Treatment of Cancer (EORTC) Core Quality of Life Questionnaire (QLQ-C30) scales are scored on a 4-point response scale, ranging from not at all to very much. Previous studies have shown that the German translation of the response option quite a bit as mäßig violates interval scale assumptions, and that ziemlich is a more appropriate translation. The present studies investigated differences between the two questionnaire versions., Methods: The first study employed a balanced cross-over design and included 450 patients with different types of cancer from three German-speaking countries. The second study was a representative survey in Germany including 2033 respondents. The main analyses included compared the ziemlich and mäßig version of the questionnaire using analyses of covariance adjusted for sex, age, and health burden., Results: In accordance with our hypothesis, the adjusted summary score was lower in the mäßig than in the ziemlich version; Study 1: - 4.5 (95% CI - 7.8 to - 1.3), p = 0.006, Study 2: - 3.1 (95% CI - 4.6 to - 1.5), p < 0.001. In both studies, this effect was pronounced in respondents with a higher health burden; Study 1: - 6.8 (95% CI - 12.2 to - 1.4), p = 0.013; Study 2: - 4.5 (95% CI - 7.3 to - 1.7), p = 0.002., Conclusions: We found subtle but consistent differences between the two questionnaire versions. We recommend to use the optimized response option for the EORTC QLQ-C30 as well as for all other German modules., Trial Registration: The study was retrospectively registered on the German Registry for Clinical Studies (reference number DRKS00012759, 04th August 2017, https://www.drks.de/DRKS00012759 )., (© 2021. The Author(s).)
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- 2021
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12. Minimally important differences for the EORTC QLQ-C30 in prostate cancer clinical trials.
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Gamper EM, Musoro JZ, Coens C, Stelmes JJ, Falato C, Groenvold M, Velikova G, Cocks K, Flechtner HH, King MT, and Bottomley A
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- Aged, Cancer Pain, Clinical Trials, Phase III as Topic statistics & numerical data, Denture Liners, Europe, Fatigue, Humans, Male, Middle Aged, Patient Reported Outcome Measures, Physical Functional Performance, Social Interaction, Time Factors, Clinical Deterioration, Diarrhea, Health Surveys, Prostatic Neoplasms, Quality of Life, Severity of Illness Index
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Background: The aim of the study was to estimate the minimally important difference (MID) for interpreting group-level change over time, both within a group and between groups, for the European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire Core 30 (EORTC QLQ-C30) scores in patients with prostate cancer., Methods: We used data from two published EORTC trials. Clinical anchors were selected by strength of correlations with QLQ-C30 scales. In addition, clinicians' input was obtained with regard to plausibility of the selected anchors. The mean change method was applied for interpreting change over time within a group of patients and linear regression models were fitted to estimate MIDs for between-group differences in change over time. Distribution-based estimates were also evaluated., Results: Two clinical anchors were eligible for MID estimation; performance status and the CTCAE diarrhoea domain. MIDs were developed for 7 scales (physical functioning, role functioning, social functioning, pain, fatigue, global quality of life, diarrhoea) and varied by scale and direction (improvement vs deterioration). Within-group MIDs ranged from 4 to 14 points for improvement and - 13 to - 5 points for deterioration and MIDs for between-group differences in change scores ranged from 3 to 13 for improvement and - 10 to - 5 for deterioration., Conclusions: Our findings aid the meaningful interpretation of changes on a set of EORTC QLQ-C30 scale scores over time, both within and between groups, and for performing more accurate sample size calculations for clinical trials in prostate cancer., (© 2021. The Author(s).)
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- 2021
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13. Missing not at random in end of life care studies: multiple imputation and sensitivity analysis on data from the ACTION study.
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Carreras G, Miccinesi G, Wilcock A, Preston N, Nieboer D, Deliens L, Groenvold M, Lunder U, van der Heide A, and Baccini M
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- Humans, Models, Statistical, Research Design, Quality of Life, Terminal Care
- Abstract
Background: Missing data are common in end-of-life care studies, but there is still relatively little exploration of which is the best method to deal with them, and, in particular, if the missing at random (MAR) assumption is valid or missing not at random (MNAR) mechanisms should be assumed. In this paper we investigated this issue through a sensitivity analysis within the ACTION study, a multicenter cluster randomized controlled trial testing advance care planning in patients with advanced lung or colorectal cancer., Methods: Multiple imputation procedures under MAR and MNAR assumptions were implemented. Possible violation of the MAR assumption was addressed with reference to variables measuring quality of life and symptoms. The MNAR model assumed that patients with worse health were more likely to have missing questionnaires, making a distinction between single missing items, which were assumed to satisfy the MAR assumption, and missing values due to completely missing questionnaire for which a MNAR mechanism was hypothesized. We explored the sensitivity to possible departures from MAR on gender differences between key indicators and on simple correlations., Results: Up to 39% of follow-up data were missing. Results under MAR reflected that missingness was related to poorer health status. Correlations between variables, although very small, changed according to the imputation method, as well as the differences in scores by gender, indicating a certain sensitivity of the results to the violation of the MAR assumption., Conclusions: The findings confirmed the importance of undertaking this kind of analysis in end-of-life care studies.
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- 2021
- Full Text
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14. Correction to: Content validation of the EORTC QLQ-C15-PAL with advanced cancer patients and health care professionals from palliative care services in Chile.
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Rojas-Concha L, Hansen MB, Petersen MA, and Groenvold M
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An amendment to this paper has been published and can be accessed via the original article.
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- 2020
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15. Should analyses of large, national palliative care data sets with patient reported outcomes (PROs) be restricted to services with high patient participation? A register-based study.
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Hansen MB, Petersen MA, Ross L, and Groenvold M
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- Adult, Datasets as Topic standards, Female, Humans, Male, Middle Aged, Palliative Care methods, Quality of Health Care standards, Quality of Health Care statistics & numerical data, Research Subjects statistics & numerical data, Surveys and Questionnaires, Data Accuracy, Datasets as Topic trends, Palliative Care statistics & numerical data, Patient Reported Outcome Measures, Registries statistics & numerical data
- Abstract
Background: There is an increased interest in the analysis of large, national palliative care data sets including patient reported outcomes (PROs). No study has investigated if it was best to include or exclude data from services with low response rates in order to obtain the patient reported outcomes most representative of the national palliative care population. Thus, the aim of this study was to investigate whether services with low response rates should be excluded from analyses to prevent effects of possible selection bias., Methods: Data from the Danish Palliative Care Database from 24,589 specialized palliative care admittances of cancer patients was included. Patients reported ten aspects of quality of life using the EORTC QLQ-C15-PAL-questionnaire. Multiple linear regression was performed to test if response rate was associated with the ten aspects of quality of life., Results: The score of six quality of life aspects were significantly associated with response rate. However, in only two cases patients from specialized palliative care services with lower response rates (< 20.0%, 20.0-29.9%, 30.0-39.9%, 40.0-49.9% or 50.0-59.9) were feeling better than patients from services with high response rates (≥60%) and in both cases it was less than 2 points on a 0-100 scale., Conclusions: The study hypothesis, that patients from specialized palliative care services with lower response rates were reporting better quality of life than those from specialized palliative care services with high response rates, was not supported. This suggests that there is no reason to exclude data from specialized palliative care services with low response rates.
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- 2020
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16. Content validation of the EORTC QLQ-C15-PAL with advanced cancer patients and health care professionals from palliative care services in Chile.
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Rojas-Concha L, Hansen MB, Petersen MA, and Groenvold M
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- Adult, Aged, Aged, 80 and over, Chile, Cross-Sectional Studies, Female, Humans, Male, Middle Aged, Neoplasms psychology, Palliative Care, Psychometrics instrumentation, Psychometrics methods, Surveys and Questionnaires, Neoplasms complications, Psychometrics standards, Quality of Life psychology
- Abstract
Background: The assessment of patients' quality of life (QOL) is essential when evaluating the outcome of palliative care; however, no instruments have been validated for measuring symptoms and QOL in patients receiving palliative care in Chile. We aimed to investigate the content validity of the EORTC Quality of Life Questionnaire Core 15 Palliative Care (QLQ-C15-PAL), replicating the methods used previously to shorten the EORTC Quality of Life Questionnaire Core 30 (QLQ-C30) for use among patients in palliative care., Methods: This cross-sectional study was conducted from October to November 2017 in four palliative care services. Patients with advanced cancer and health care professionals (HCPs) were invited to individual interviews to determine the relevance, appropriateness and relative importance of the 30 items of the QLQ-C30 for evaluating the outcome of palliative care, and whether relevant additional issues should be included., Results: A total of 48 patients and 35 HCPs participated. The most important dimensions selected were pain, physical functioning, sleeping difficulties, emotional functioning, nausea/vomiting, fatigue, social functioning, lack of appetite, role functioning and constipation. Qualitative data identified important additional issues not covered by the questionnaire such as satisfaction with care, emotions and psychological support, as well as linguistic issues in the dyspnea and constipation items., Conclusions: The EORTC QLQ-C15-PAL showed good content validity in the assessment of symptoms and QOL of advanced cancer patients; therefore, we recommend the use of this questionnaire in palliative care in Chile. Dyspnea and constipation items were revised by the EORTC group. More research is needed to add a social dimension for a comprehensive assessment of patients' QOL.
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- 2020
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17. A parallel-group randomized clinical trial of individually tailored, multidisciplinary, palliative rehabilitation for patients with newly diagnosed advanced cancer: the Pal-Rehab study protocol.
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Nottelmann L, Groenvold M, Vejlgaard TB, Petersen MA, and Jensen LH
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- Disease Management, Female, Humans, Male, Neoplasm Staging, Neoplasms diagnosis, Neoplasms epidemiology, Quality of Life, Referral and Consultation, Surveys and Questionnaires, Clinical Protocols, Neoplasms rehabilitation, Neoplasms therapy, Palliative Care
- Abstract
Background: The effect of early palliative care and rehabilitation on the quality of life of patients with advanced cancer has been only sparsely described and needs further investigation. In the present trial we combine elements of early, specialized palliative care with cancer rehabilitation in a 12-week individually tailored, palliative rehabilitation program initiated shortly after a diagnosis of advanced cancer., Methods: This single center, randomized, controlled trial will include 300 patients with newly diagnosed advanced cancer recruited from the Department of Oncology, Vejle Hospital. The patients are randomized to a specialized palliative rehabilitation intervention integrated in standard oncology care or to standard oncology care alone. The intervention consists of a multidisciplinary group program, individual consultations, or a combination of both. At baseline and after six and 12 weeks the patients will be asked to fill out questionnaires on symptoms, quality of life, and symptoms of depression and anxiety. Among the symptoms and problems assessed, patients are asked to indicate the problem they need help with to the largest extent. The effect of the intervention on this problem is the primary outcome measure of the study. Secondary outcome measures include survival and economic consequences., Discussion: To our knowledge the Pal-Rehab study is the first randomized, controlled, phase III trial to evaluate individually tailored, palliative rehabilitation in standard oncology care initiated shortly after an advanced cancer diagnosis. The study will contribute with evidence on the effectiveness of implementing early palliative care in standard oncology treatment and hopefully offer new knowledge and future directions as to the content of palliative rehabilitation programs., Trial Registration: Clinicaltrials.gov Identifier: NCT02332317 , registered retrospectively on December 30, 2014. One study participant had been enrolled at the time.
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- 2017
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18. Is admittance to specialised palliative care among cancer patients related to sex, age and cancer diagnosis? A nation-wide study from the Danish Palliative Care Database (DPD).
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Adsersen M, Thygesen LC, Jensen AB, Neergaard MA, Sjøgren P, and Groenvold M
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- Adolescent, Adult, Age Distribution, Age Factors, Aged, Aged, 80 and over, Denmark epidemiology, Female, Hospices, Humans, Male, Middle Aged, Neoplasms epidemiology, Patient Care Team organization & administration, Sex Distribution, Sex Factors, Young Adult, Databases, Factual, Health Services Accessibility organization & administration, Health Services Accessibility statistics & numerical data, Neoplasms diagnosis, Neoplasms therapy, Palliative Care organization & administration, Palliative Care statistics & numerical data, Registries
- Abstract
Background: Specialised palliative care (SPC) takes place in specialised services for patients with complex symptoms and problems. Little is known about what determines the admission of patients to SPC and whether there are differences in relation to institution type. The aims of the study were to investigate whether cancer patients' admittance to SPC in Denmark varied in relation to sex, age and diagnosis, and whether the patterns differed by type of institution (hospital-based palliative care team/unit, hospice, or both)., Methods: This was a register-based study of adult patients living in Denmark who died from cancer in 2010-2012. Data sources were the Danish Palliative Care Database, Danish Register of Causes of Death and Danish Cancer Registry. The associations between the explanatory variables (sex, age, diagnosis) and admittance to SPC were investigated using logistic regression., Results: In the study population (N = 44,548) the overall admittance proportion to SPC was 37%. Higher odds of overall admittance to SPC were found for women (OR = 1.23; 1.17-1.28), younger patients (<40 compared with 80+ years old) (OR = 6.44; 5.19-7.99) and patients with sarcoma, pancreatic and stomach cancers, whereas the lowest were for patients with haematological malignancies. The higher admission found for women was most pronounced for hospices compared to hospital-based palliative care teams/units, whereas higher admission of younger patients was more pronounced for hospital-based palliative care teams/units. Patients with brain cancer were more often admitted to hospices, whereas patients with prostate cancer were more often admitted to hospital-based palliative care teams/units., Conclusion: It is unlikely that the variations in relation to sex, age and cancer diagnoses can be fully explained by differences in need. Future research should investigate whether the groups having the lowest admittance to SPC receive sufficient palliative care elsewhere.
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- 2017
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19. Development of an item bank for the EORTC Role Functioning Computer Adaptive Test (EORTC RF-CAT).
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Gamper EM, Petersen MA, Aaronson N, Costantini A, Giesinger JM, Holzner B, Kemmler G, Oberguggenberger A, Singer S, Young T, and Groenvold M
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- Adult, Aged, Aged, 80 and over, Austria, Computers, Denmark, Female, Humans, Italy, Male, Middle Aged, Program Development, Reproducibility of Results, Surveys and Questionnaires, United Kingdom, Neoplasms psychology, Neoplasms therapy, Patients psychology, Psychometrics instrumentation, Quality of Life psychology, Role, Survivors psychology
- Abstract
Background: Role functioning (RF) as a core construct of health-related quality of life (HRQOL) comprises aspects of occupational and social roles relevant for patients in all treatment phases as well as for survivors. The objective of the current study was to improve its assessment by developing a computer-adaptive test (CAT) for RF. This was part of a larger project whose objective is to develop a CAT version of the EORTC QLQ-C30 which is one of the most widely used HRQOL instruments in oncology., Methods: In accordance with EORTC guidelines, the development of the RF-CAT comprised four phases. Phase I involved the conceptualization of RF. In Phase II, a provisional list of items was defined and revised by experts in the field. In phase III, feedback was obtained from cancer patients in various countries. Phase IV comprised field testing in an international sample, calibration of the item bank, and evaluation of the psychometric performance of the RF-CAT., Results: Phases I-III yielded a list of 12 items eligible for phase IV field-testing. The field-testing sample included 1,023 patients from Austria, Denmark, Italy, and the UK. Psychometric evaluation and item response theory analyses yielded 10 items with good psychometric properties. The resulting item bank exhibits excellent reliability (mean reliability = 0.85, median = 0.95). Using the RF-CAT may allow sample size savings from 11 % up to 50 % compared to using the QLQ-C30 RF scale., Conclusions: The RF-CAT item bank improves the precision and efficiency with which RF can be assessed, promoting its integration into oncology research and clinical practice.
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- 2016
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20. Advance care planning--a multi-centre cluster randomised clinical trial: the research protocol of the ACTION study.
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Rietjens JA, Korfage IJ, Dunleavy L, Preston NJ, Jabbarian LJ, Christensen CA, de Brito M, Bulli F, Caswell G, Červ B, van Delden J, Deliens L, Gorini G, Groenvold M, Houttekier D, Ingravallo F, Kars MC, Lunder U, Miccinesi G, Mimić A, Paci E, Payne S, Polinder S, Pollock K, Seymour J, Simonič A, Johnsen AT, Verkissen MN, de Vries E, Wilcock A, Zwakman M, and van der Heide Pl A
- Subjects
- Adult, Aged, Aged, 80 and over, Colorectal Neoplasms epidemiology, Colorectal Neoplasms pathology, Communication, Decision Making, Female, Health Personnel, Humans, Lung Neoplasms epidemiology, Lung Neoplasms pathology, Male, Middle Aged, Patient-Centered Care, Quality of Life, Surveys and Questionnaires, Terminal Care, Advance Care Planning, Colorectal Neoplasms therapy, Lung Neoplasms therapy
- Abstract
Background: Awareness of preferences regarding medical care should be a central component of the care of patients with advanced cancer. Open communication can facilitate this but can occur in an ad hoc or variable manner. Advance care planning (ACP) is a formalized process of communication between patients, relatives and professional caregivers about patients' values and care preferences. It raises awareness of the need to anticipate possible future deterioration of health. ACP has the potential to improve current and future healthcare decision-making, provide patients with a sense of control, and improve their quality of life., Methods/design: We will study the effects of the ACP program Respecting Choices on the quality of life of patients with advanced lung or colorectal cancer. In a phase III multicenter cluster randomised controlled trial, 22 hospitals in 6 countries will be randomised. In the intervention sites, patients will be offered interviews with a trained facilitator. In the control sites, patients will receive care as usual. In total, 1360 patients will be included. All participating patients will be asked to complete questionnaires at inclusion, and again after 2.5 and 4.5 months. If a patient dies within a year after inclusion, a relative will be asked to complete a questionnaire on end-of-life care. Use of medical care will be assessed by checking medical files. The primary endpoint is patients' quality of life at 2.5 months post-inclusion. Secondary endpoints are the extent to which care as received is aligned with patients' preferences, patients' evaluation of decision-making processes, quality of end-of-life care and cost-effectiveness of the intervention. A complementary qualitative study will be carried out to explore the lived experience of engagement with the Respecting Choices program from the perspectives of patients, their Personal Representatives, healthcare providers and facilitators., Discussion: Transferring the concept of ACP from care of the elderly to patients with advanced cancer, who on average are younger and retain their mental capacity for a larger part of their disease trajectory, is an important next step in an era of increased focus on patient centered healthcare and shared decision-making., Trial Registration: International Standard Randomised Controlled Trial Number: ISRCTN63110516. Date of registration: 10/3/2014.
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- 2016
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21. Detailed statistical analysis plan for the Danish Palliative Care Trial (DanPaCT).
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Johnsen AT, Petersen MA, Gluud C, Lindschou J, Fayers P, Sjøgren P, Pedersen L, Neergaard MA, Vejlgaard TB, Damkier A, Nielsen JB, Strömgren AS, Higginson IJ, and Groenvold M
- Subjects
- Bias, Data Interpretation, Statistical, Denmark, Female, Humans, Male, Neoplasms complications, Neoplasms diagnosis, Neoplasms psychology, Quality of Life, Sample Size, Time Factors, Treatment Outcome, Neoplasms therapy, Palliative Care statistics & numerical data, Referral and Consultation statistics & numerical data, Research Design statistics & numerical data
- Abstract
Background: Advanced cancer patients experience considerable symptoms, problems, and needs. Early referral of these patients to specialized palliative care (SPC) could offer improvements. The Danish Palliative Care Trial (DanPaCT) investigates whether patients with metastatic cancer will benefit from being referred to 'early SPC'. DanPaCT is a multicenter, parallel-group, superiority clinical trial with 1:1 randomization. The planned sample size was 300 patients. The primary data collection for DanPaCT is finished. To prevent outcome reporting bias, selective reporting, and data-driven results, we present a detailed statistical analysis plan (SAP) for DanPaCT here., Results: This SAP provides detailed descriptions of the statistical analyses of the primary and secondary outcomes in DanPaCT. The primary outcome is the change in the patient's 'primary need'. The 'primary need' is a patient-individualised outcome representing the score of the symptom or problem that had the highest intensity out of seven at baseline assessed with the European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire (EORTC QLQ-C30). Secondary outcomes are the seven scales that are represented in the primary outcome, but each scale evaluated individually for all patients, and survival. The detailed description includes chosen significance levels, models for multiple imputations, sensitivity analyses and blinding. In addition, we discuss the patient-individualized primary outcome, blinding, missing data, multiplicity and the risk of bias., Conclusions: Only few trials have investigated the effects of SPC. To our knowledge DanPaCT is the first trial to investigate screening based 'early SPC' for patients with metastatic cancer from a broad spectrum of cancer diagnosis., Trial Registration: Clinicaltrials.gov identifier: NCT01348048 (May 2011).
- Published
- 2014
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22. Confirmatory factor analysis of the thyroid-related quality of life questionnaire ThyPRO.
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Watt T, Groenvold M, Deng N, Gandek B, Feldt-Rasmussen U, Rasmussen ÅK, Hegedüs L, Bonnema SJ, and Bjorner JB
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- Activities of Daily Living, Adult, Aged, Cross-Sectional Studies, Factor Analysis, Statistical, Female, Humans, Male, Middle Aged, Models, Statistical, Personal Satisfaction, Psychometrics, Social Participation, Surveys and Questionnaires, Patient Outcome Assessment, Quality of Life, Thyroid Diseases
- Abstract
Background and Aim: Thyroid diseases are prevalent and chronic. With treatment, quality of life is restored in most, but not all patients. Construct validity of the thyroid-related quality of life questionnaire, ThyPRO, has been established by multi-trait scaling, but not evaluated with more elaborate methods. The purpose of the present study was to evaluate dimensionality of the ThyPRO scales and to attempt to understand possible item misfit through structural equation modeling for categorical data., Methods: The current 85-item version of ThyPRO consists of 13 scales, covering domains of physical (4 scales) and mental (2 scales) symptoms, function and well-being (3 scales) and participation/social function (4 scales). The data were collected from a cross-sectional sample of 907 thyroid patients. One-factor confirmatory models were fitted to each scale, and evaluated by model fit statistics (comparative fit index >0.95, root mean square error of approximation <0.08), magnitude of factor loadings, model residual correlations and modification indices (MI). Indications of multi-dimensionality were tested in bi-factor models. Possible item misfit was evaluated in a combined, investigational model., Results: Each ThyPRO scale was adequately represented by a unidimensional model after minor revisions. Eleven items were identified in the unidimensional models as potentially misfitting and were investigated further by multidimensional modeling., Conclusion: Elaborate psychometric modeling supported the construct validity of the ThyPRO. However, 11 potentially misfitting items and 18 items with local dependence to other items are candidates for removal in future item reduction processes.
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- 2014
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23. Cancer caregiving tasks and consequences and their associations with caregiver status and the caregiver's relationship to the patient: a survey.
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Lund L, Ross L, Petersen MA, and Groenvold M
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- Cross-Sectional Studies, Female, Health Services Needs and Demand, Humans, Male, Neoplasms pathology, Stress, Psychological, Surveys and Questionnaires, Caregivers psychology, Neoplasms psychology, Patients psychology
- Abstract
Background: Seriously ill patients often depend on their informal caregivers to help and support them through the disease course. This study investigated informal cancer caregivers' experiences of caregiving tasks and consequences and how caregiver status (primary vs. non-primary caregiver) and the caregiver's relationship to the patient (spouse/partner, etc.) are related to these experiences., Methods: In a cross-sectional questionnaire study, randomly selected cancer patients with a range of diagnoses and disease stages were invited to pass on the 'Cancer Caregiving Tasks, Consequences and Needs Questionnaire' (CaTCoN) to 1-3 of their caregivers., Results: A total of 590 caregivers related to 415 (55% of 752 eligible) cancer patients participated. Large proportions of caregivers experienced substantial caregiving workload, e.g., provision of psychological support (74%), as well as a range of negative consequences, most commonly stress (59%). Some caregivers experienced personal growth, but relatively large proportions did not. Caregiver status and the caregiver's relationship to the patient were associated with some caregiving aspects. Primary caregivers experienced the highest caregiving workload, and non-primary caregivers experienced most problems with getting time off from work. Spouses/partners and/or parents experienced the highest workload, most lack of time for social relations, most financial difficulties, and had the greatest need for seeing a psychologist. They furthermore experienced the highest degree of personal growth and had the smallest need for living a normal life while being a caregiver. Yet, regarding the majority of caregiving aspects, no associations with caregiver status or the caregiver's relationship to the patient were found., Conclusions: Overall, the findings confirm that cancer caregiving is burdensome. The primary and the closest caregivers seemed to take on most caregiving tasks, but, contrary to expectations, regarding the majority of caregiving consequences non-primary and more distant caregivers were affected to the same degree as the primary and closest caregivers. Initiatives and interventions to support not only the primary caregivers are therefore warranted.
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- 2014
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24. The chronic autoimmune thyroiditis quality of life selenium trial (CATALYST): study protocol for a randomized controlled trial.
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Winther KH, Watt T, Bjørner JB, Cramon P, Feldt-Rasmussen U, Gluud C, Gram J, Groenvold M, Hegedüs L, Knudsen N, Rasmussen ÅK, and Bonnema SJ
- Subjects
- Autoantibodies blood, Autoantigens immunology, Biomarkers blood, Chronic Disease, Clinical Trials as Topic, Denmark, Female, Humans, Iodide Peroxidase immunology, Iron-Binding Proteins immunology, Male, Surveys and Questionnaires, Thyroid Gland immunology, Thyroid Gland metabolism, Thyroid Hormones blood, Thyroiditis, Autoimmune blood, Thyroiditis, Autoimmune diagnosis, Thyroiditis, Autoimmune immunology, Thyroiditis, Autoimmune psychology, Time Factors, Treatment Outcome, Dietary Supplements, Quality of Life, Research Design, Selenium therapeutic use, Thyroid Gland drug effects, Thyroiditis, Autoimmune drug therapy, Yeast, Dried therapeutic use
- Abstract
Background: Patients with chronic autoimmune thyroiditis have impaired health-related quality of life. The thyroid gland has a high selenium concentration, and specific selenoprotein enzyme families are crucial to immune function, and catalyze thyroid hormone metabolism and redox processes in thyroid cells. Previous randomized controlled trials have found that selenium supplementation decreases thyroid-disease-specific antibody levels. We hypothesize that selenium might be beneficial in the treatment of chronic autoimmune thyroiditis., Methods/design: The CATALYST trial is an investigator-initiated randomized, blinded, multicentre clinical trial of selenium supplementation versus placebo in patients with chronic autoimmune thyroiditis., Inclusion Criteria: age ≥18 years; serum thyroid peroxidase antibody level ≥100 IU/ml within the previous 12 months; treatment with levothyroxine and written informed consent., Exclusion Criteria: previous diagnosis of toxic nodular goitre, Graves' hyperthyroidism, postpartum thyroiditis, Graves' orbitopathy; previous antithyroid drug treatment, radioiodine therapy or thyroid surgery; immune-modulatory or other medication affecting thyroid function; pregnancy, planned pregnancy or breastfeeding; allergy towards any intervention or placebo component; intake of selenium supplementation >55 μg/day; inability to read or understand Danish or lack of informed consent. The trial will include 2 × 236 participants. The experimental intervention and control groups will receive 200 μg selenium-enriched yeast or matching placebo tablets daily for 12 months. The experimental supplement will be SelenoPrecise®. The primary outcome is thyroid-related quality of life assessed by the Thyroid Patient-Reported Outcome (ThyPRO) questionnaire. Secondary outcomes include serum thyroid peroxidase antibody concentration; serum triiodothyronine/thyroxine ratio; levothyroxine dosage; adverse reactions and serious adverse reactions and events., Discussion: In this pragmatic trial, participating patients follow their usual treatment at their usual hospitals. In order to collect high-quality data on the clinical course and quality of life, and to minimize missing data, an elaborate trial management system has been designed. 12 months intervention duration was selected in consideration of the primary outcome, thyroid-related quality of life., Trial Registration: ClinicalTrials.gov ID: NCT02013479.
- Published
- 2014
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25. A randomised, multicentre clinical trial of specialised palliative care plus standard treatment versus standard treatment alone for cancer patients with palliative care needs: the Danish palliative care trial (DanPaCT) protocol.
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Johnsen AT, Damkier A, Vejlgaard TB, Lindschou J, Sjøgren P, Gluud C, Neergaard MA, Petersen MA, Lundorff LE, Pedersen L, Fayers P, Strömgren AS, Higginson IJ, and Groenvold M
- Abstract
Background: Advanced cancer patients experience considerable symptoms, problems, and needs. Early referral of these patients to specialised palliative care (SPC) could improve their symptoms and problems.The Danish Palliative Care Trial (DanPaCT) investigates whether patients with metastatic cancer, who report palliative needs in a screening, will benefit from being referred to 'early SPC'., Methods/design: DanPaCT is a clinical, multicentre, parallel-group superiority trial with balanced randomisation (1:1). The planned sample size is 300 patients. Patients are randomised to specialised palliative care (SPC) plus standard treatment versus standard treatment. Consecutive patients from oncology departments are screened for palliative needs with a questionnaire if they: a) have metastatic cancer; b) are 18 years or above; and c) have no prior contact with SPC. Patients with palliative needs (i.e. symptoms/problems exceeding a certain threshold) according to the questionnaire are eligible. The primary outcome is the change in the patients' primary need (the most severe symptom/problem measured with the European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire (EORTC QLQ-C30)). Secondary outcomes are other symptoms/problems (EORTC QLQ-C30), satisfaction with health care (FAMCARE P-16), anxiety and depression (the Hospital Anxiety and Depression scale), survival, and health care costs., Discussion: Only few trials have investigated the effects of SPC. To our knowledge DanPaCT is the first trial to investigate screening based 'early SPC' for patients with a broad spectrum of cancer diagnosis., Trial Registration: Current controlled Trials NCT01348048.
- Published
- 2013
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26. Validation of the Danish version of the disease specific instrument EORTC QLQ-CR38 to assess health-related quality of life in patients with colorectal cancer.
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Thaysen HV, Jess P, Laurberg S, and Groenvold M
- Subjects
- Adult, Aged, Aged, 80 and over, Colorectal Neoplasms physiopathology, Colorectal Neoplasms therapy, Denmark, Female, Humans, Language, Male, Middle Aged, Psychometrics, Colorectal Neoplasms psychology, Health Status, Quality of Life psychology, Surveys and Questionnaires standards
- Abstract
Background: The European Organisation for Research and Treatment of Cancer (EORTC) quality of life colorectal questionnaire module (QLQ-CR38) was developed in 1999, and an update, the QLQ CR29 was published recently. To date the Danish version of the questionnaire has not been validated. The aim of this study was to examine the psychometric properties of the Danish version of EORTC QLQ-CR38., Methods: EORTC QLQ-CR38 was administered to 190 patients with colorectal cancer in two Danish hospitals, one month after their operation. A psychometric evaluation of the questionnaire's structure, reliability, convergent, divergent and known-groups validity was performed., Results: Data from 164 (86.3%) patients were available for analysis. The Danish version of EORTC QLQ-CR38 showed satisfactory psychometric properties for the scales: body image, sexual functioning, male sexual problems and defecations problems. Suboptimal psychometric performances were found for the scales: micturition problems, symptoms of the gastrointestinal tract and weight loss. Evaluation of the psychometric properties of the scale chemotherapy side effects was limited by the low number of patients receiving chemotherapy. It was not possible to assess the psychometric properties of the scale female sexual problems and the single item sexual enjoyment due to a high number of missing values. The homogeneity of the study population made the evaluation of known-group validity difficult., Conclusions: The results of this study suggest that the validity of the Danish version of EORTC QLQ-CR38 is acceptable. Furthermore, the results support the appropriateness of the updated version, the EORTC QLQ-CR29.
- Published
- 2012
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27. Cross-cultural development of an item list for computer-adaptive testing of fatigue in oncological patients.
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Giesinger JM, Aa Petersen M, Groenvold M, Aaronson NK, Arraras JI, Conroy T, Gamper EM, Kemmler G, King MT, Oberguggenberger AS, Velikova G, Young T, and Holzner B
- Subjects
- Cross-Cultural Comparison, Diagnosis, Computer-Assisted instrumentation, Fatigue classification, Fatigue etiology, Humans, Neoplasms psychology, Quality of Life psychology, Reproducibility of Results, Severity of Illness Index, Sickness Impact Profile, Fatigue diagnosis, Neoplasms complications, Psychometrics instrumentation
- Abstract
Introduction: Within an ongoing project of the EORTC Quality of Life Group, we are developing computerized adaptive test (CAT) measures for the QLQ-C30 scales. These new CAT measures are conceptualised to reflect the same constructs as the QLQ-C30 scales. Accordingly, the Fatigue-CAT is intended to capture physical and general fatigue., Methods: The EORTC approach to CAT development comprises four phases (literature search, operationalisation, pre-testing, and field testing). Phases I-III are described in detail in this paper. A literature search for fatigue items was performed in major medical databases. After refinement through several expert panels, the remaining items were used as the basis for adapting items and/or formulating new items fitting the EORTC item style. To obtain feedback from patients with cancer, these English items were translated into Danish, French, German, and Spanish and tested in the respective countries., Results: Based on the literature search a list containing 588 items was generated. After a comprehensive item selection procedure focusing on content, redundancy, item clarity and item difficulty a list of 44 fatigue items was generated. Patient interviews (n = 52) resulted in 12 revisions of wording and translations., Discussion: The item list developed in phases I-III will be further investigated within a field-testing phase (IV) to examine psychometric characteristics and to fit an item response theory model. The Fatigue CAT based on this item bank will provide scores that are backward-compatible to the original QLQ-C30 fatigue scale.
- Published
- 2011
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