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Article
Return to work and psychosocial trajectories after breast cancer: a longitudinal and sequential approach
We aimed to describe the psychosocial adjustments according to return to work (RTW) trajectories in breast cancer survivors (BCS) using a sequential and temporal approach.
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Article
Does Differential Item Functioning Jeopardize the Comparability of Health-Related Quality of Life Assessment Between Patients and Proxies in Patients with Moderate-to-Severe Traumatic Brain Injury?
Health-related quality of life (HRQoL) is clearly recognized as a patient-important outcome in patients with traumatic brain injury (TBI). Patient-reported outcomes are therefore often used and supposed to be ...
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Article
Open AccessPosttraumatic growth inventory: challenges with its validation among French cancer patients
The Posttraumatic growth inventory (PTGI) aims to assess the positive psychological changes that individuals can perceive after a traumatic life event such as a cancer diagnosis. Several French translations of...
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Article
Investigation of measurement invariance in longitudinal health-related quality of life in preemptive or previously dialyzed kidney transplant recipients
Kidney transplantation (KT) can impact patients’ evaluation of health-related quality of life (HRQoL) as they adapt to their new life with a graft and its changes. Patients may adapt to KT in a different way, ...
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Article
Evaluation of the link between the Guttman errors and response shift at the individual level
Methods for response shift (RS) detection at the individual level could be of great interest when analyzing changes in patient-reported outcome data. Guttman errors (GEs), which measure discrepancies in respon...
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Article
Open AccessThe minimal perceived change: a formal model of the responder definition according to the patient’s meaning of change for patient-reported outcome data analysis and interpretation
Patient-Reported Outcomes (PROs) are standardized questionnaires used to measure subjective outcomes such as quality of life in healthcare. They are considered paramount to assess the results of therapeutic in...
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Article
Reply to letter to editor: “RespOnse Shift ALgorithm in item response theory (ROSALI) for response shift detection with missing data in longitudinal patient-reported outcome studies”
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Article
Longitudinal associations between co** strategies, locus of control and health-related quality of life in patients with breast cancer or melanoma
A diagnosis of breast cancer or melanoma is a traumatic life event that patients have to face. However, their locus-of-control (LOC) beliefs and co** strategies as well as the associations with health-relate...
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Article
Comparison of longitudinal quality of life outcomes in preemptive and dialyzed patients on waiting list for kidney transplantation
The waiting list period for kidney transplantation can be lengthy and associated with a deteriorated health-related quality of life (HRQoL). It might also be experienced differently depending on the experience...
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Article
Open AccessA systematic review of dimensions evaluating patient experience in chronic illness
Living with a chronic disease often means experiencing chronic treatments and regular multidisciplinary monitoring as well as a profound life-changing experience which may impact all aspects of a patients life...
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Article
The Guttman errors as a tool for response shift detection at subgroup and item levels
Statistical methods for identifying response shift (RS) at the individual level could be of great practical value in interpreting change in PRO data. Guttman errors (GE) may help to identify discrepancies in r...
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Article
Overall performance of Oort’s procedure for response shift detection at item level: a pilot simulation study
This simulation study was designed to provide data on the performance of Oort’s procedure (OP) for response shift (RS) detection (regarding type I error, power, and overall performance), according to sample ch...
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Article
Open AccessValidation of the French translation-adaptation of the impact of cancer questionnaire version 2 (IOCv2) in a breast cancer survivor population
The Impact of Cancer version 2 (IOCv2) was designed to assess the physical and psychosocial health experience of cancer survivors through its positive and negative impacts. Although the IOCv2 is available in E...
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Article
Open AccessPower and sample size determination for the group comparison of patient-reported outcomes using the Rasch model: impact of a misspecification of the parameters
Patient-reported outcomes (PRO) are important as endpoints in clinical trials and epidemiological studies. Guidelines for the development of PRO instruments and analysis of PRO data have emphasized the need to...
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Article
RespOnse Shift ALgorithm in Item response theory (ROSALI) for response shift detection with missing data in longitudinal patient-reported outcome studies
Some IRT models have the advantage of being robust to missing data and thus can be used with complete data as well as different patterns of missing data (informative or not). The purpose of this paper was to d...
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Article
Assessment of score- and Rasch-based methods for group comparison of longitudinal patient-reported outcomes with intermittent missing data (informative and non-informative)
The purpose of this study was to identify the most adequate strategy for group comparison of longitudinal patient-reported outcomes in the presence of possibly informative intermittent missing data. Models com...
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Article
Open AccessA simple ratio-based approach for power and sample size determination for 2-group comparison using Rasch models
Despite the widespread use of patient-reported Outcomes (PRO) in clinical studies, their design remains a challenge. Justification of study size is hardly provided, especially when a Rasch model is planned for...
