General Measure Research Articles

The psychometric properties of the amharic version of EuroQoL five-dimensions-five level among Ethiopian cervical cancer patients.

Despite being a widely used generic measure of health-related quality of life worldwide, there is limited evidence on the psychometric properties of the EuroQoL Five-dimensions five level (EQ-5D) among cervical cancer patients in Ethiopia. To evaluate psychometric properties of the Amharic version of EQ-5D among Ethiopian cervical cancer patients. A longitudinal survey of cervical cancer patients receiving treatment at two Ethiopian tertiary care facilities was conducted from March 2022 to July 2023. Participants completed the EQ-5D and the European Organization for Research and Therapy of Cancer (EORTC QLQ-C30) at baseline and after three months on treatment. Effect size and standardized response mean were used to assess responsiveness. Anchor-based and distribution-based methods were used to calculate the minimal clinically important difference (MCID). Minimal detectable change (MDC) ratios were computed at the individual and group levels. Statistical significance was determined at p < 0.05. Three hundred seventy-one patients completed the survey at baseline and follow-up with a mean age of 49.72 (10.80) years. The majority (268,73%) of the patients had early-stage cancer. The EQ-5D index and EQ VAS scores respectively improved by 0.04 and 7.0 post-treatment.The physical domains of EORTC QLQ-C30 had showed high correlation with physical dimensions of EQ-5D (r > 0.6) and the instrument showed good discriminate validity between patients with different health states. The effect size ranged between - 0.12 and 0.60 for the EQ-5D index value and - 0.12 to 1.16 for the EQ VAS, indicating small to large responsiveness. The average (range) MCID value of the EQ-5D index was 0.10-0.15. The findings showed that MCID to MDC ratios at the group level were more clinically meaningful than the individual level. The EQ-5D effectively detected changes and discriminate patients with different levels of health. While group-level MCIDs were established in this study, further studies are recommended to prove its usefulness at the individual-level.

Influence of comorbidities on health-related quality of life in alcohol-related liver disease: a population-based survey

Extra-hepatic comorbidities are common in alcohol-related liver disease (ALD). We examined associations between burden of comorbidities, alcohol, and smoking with low health-related quality of life (HRQoL) among patients with ALD. Patients with ALD and matched comparators were identified among respondents of the Danish National Health Surveys 2010-2017. Survey data included generic measures of physical and mental HRQoL (12-item Short Form), comorbidities, alcohol and smoking. Low HRQoL in ALD was defined as >1.5 standard deviations worse than the average HRQoL in the comparators. Odds ratios (OR) of low HRQoL was estimated with multivariable logistic regression adjusting for potential confounders. We included 772 ALD patients, 53% of whom had cirrhosis; 37% had low physical HRQoL and 22% had low mental HRQoL. Disc herniation (found in 21%), osteoarthritis (36%), chronic obstructive pulmonary disease (COPD) (11%), cancer (6%), stroke (1%) and psychiatric disease (9%) were associated with low physical and/or mental HRQoL whereas alcohol use disorder (24%), diabetes (19%), acute myocardial infarction (1%), hypertension (34%) and osteoporosis (12%) were not. For example, osteoarthritis was associated with low physical [OR 2.17 (95% CI: 1.54-3.05)] and low mental HRQoL [OR 1.91 (95%CI: 1.27-2.88)]. For lifestyle factors, drinking > 20 units/week was associated with low physical and smoking > 20 cigarettes/day with low mental HRQoL, when compared to abstainers and non-smokers, respectively. Common comorbidities including COPD, musculoskeletal and psychiatric disease are associated with low HRQoL in ALD, independently of liver disease severity, and so are alcohol consumption and smoking. These findings highlight the importance of multidisciplinary management of patients with ALD.

Towards Standardized Assessment of Outcomes in Back Pain-Validation of Linking Studies Between Disease-Specific and Generic Patient-Reported Outcome Measures.

Background: Comparing outcomes across different health measurement tools is essential where various patient-reported outcome measures (PROMs) are used. In spinal surgery, where recent studies show that over 30 different PROMs are applied, this need becomes even more pressing. Although several statistical transformations between the Oswestry Disability Index (ODI) and the PROMIS Profile 29 have been proposed, validation studies on conversion equations and cross-walk tables remain limited. In this study, we examined the agreement between observed ODI scores and those predicted from the PROMIS Profile 29 in a large sample of patients with low back pain, collected from routine clinical care. Methods: We compared the performance of regression and linking models at both the individual and group levels. Using Bland-Altman plots, we assessed the mean difference, 95% limits of agreement, root mean squared error (RMSE), and standardized mean differences (Cohen's d) between predicted and observed ODI scores. Results: While group-level agreement was satisfactory, with negligible effect sizes, individual prediction accuracy was relatively poor. Additionally, regression models showed inconsistent performance across the ODI score range, though incorporating more domains marginally improved predictions. Conclusions: The equipercentile linking approach demonstrated stable agreement across all ODI scores, making it the preferred method. Future regression models should account for nonlinear relationships between PROMs to enhance prediction accuracy.

Face and content validity of the EMPOWER-UP questionnaire: a generic measure of empowerment in relational decision-making and problem-solving

BackgroundDecision-making and problem-solving processes are powerful activities occurring daily across all healthcare settings. Their empowering potential is seldom fully exploited, and they may even be perceived as disempowering. We developed the EMPOWER-UP questionnaire to enable assessment of healthcare users’ perception of empowerment across health conditions, healthcare settings, and healthcare providers’ professional backgrounds. This article reports the initial development of EMPOWER-UP, including face and content validation.MethodsFour grounded theories explaining barriers and enablers to empowerment in relational decision-making and problem-solving were reviewed to generate a preliminary item pool, which was subsequently reduced using constant comparison. Preliminary items were evaluated for face and content validity using an expert panel of seven researchers and cognitive interviews in Danish and English with 29 adults diagnosed with diabetes, cancer, or schizophrenia.ResultsA preliminary pool of 139 items was reduced to 46. Independent feedback from expert panel members resulted in further item reduction and modifications supporting content validity and strengthening the potential for generic use. Forty-one preliminary items were evaluated through 29 cognitive interviews, resulting in a 36-item draft questionnaire deemed to have good face and content validity and generic potential.ConclusionsFace and content validation using an expert panel and cognitive interviews resulted in a 36-item draft questionnaire with a potential for evaluating empowerment in user-provider interactions regardless of health conditions, healthcare settings, and healthcare providers’ professional backgrounds.

Development of a novel Patient-Reported Outcome Measure (PROM) for adults with an Inherited Cardiac Condition (ICC)

Abstract Background Research on the quality-of-life (QoL) among patients with inherited cardiac conditions (ICC) is limited. Existing evidence from a systematic review indicates that most studies rely on generic measures of health-related QoL, which may not adequately capture ICC-specific factors. The current study aims to develop a disease-specific patient-reported outcome measure to address this gap. Methods Using a qualitative study design, we first conducted focus groups until data saturation was achieved (n=15). Additionally, an expert panel of healthcare professionals was interviewed to ascertain their perspectives on patient-centered care and to evaluate face validity. Transcripts of all focus groups and interviews were analyzed thematically using Atlas.ti, qualitative analysis software, to identify concepts and formulate survey items for the initial instrument. We used the ‘Centre for Health Promotion’ QoL model, consisting of three domains- Being, Belonging, and Becoming- as the theoretical framework for our analysis. Results Our analysis revealed alignment with specific QoL domains of the overarching framework and identified a gap in genetic-specific domains. A novel overarching theme, genetic well-being, was identified, encompassing specific constructs related to future uncertainty, reproductive concerns, and the anticipation of disease development, thus enriching the conceptualization of QoL in the context of inherited cardiac conditions. The discussion will include an exploration of the face validity of the draft instrument. Conclusion Patients diagnosed with an inherited cardiac condition (ICC) face a spectrum of challenges originating from both disease-related stressors and hereditary factors alike. Recognizing that relying solely on objective clinical assessment may fail to capture the full impact of the disease, there has been an increasing focus on incorporating patient-reported measures into disease evaluation. This qualitative study contributes to developing a comprehensive patient-reported outcome measure tailored to individuals with ICC.PROM development study

The Short Form 6 Dimensions (SF-6D): Development and Evolution.

This paper considers the development and evolution of the short-form 6 dimensions (SF-6D), a generic preference-weighted measure consisting of a health classification with accompanying value set that was developed from one of the widest used health related quality of life measures, the SF-36 health survey. This enabled health state utility values to be directly generated from SF-36 and SF-12 data for a range of purposes, including to produce quality adjusted life years for use in economic evaluation of healthcare interventions across a range of different conditions and treatments. This paper considers the rationale for the development of the measure, the development process, performance and how the SF-6D has evolved since its conception. This includes the development of an updated version, SF-6D version 2 (SF-6Dv2), which was generated to deal with some criticisms of the first version, and now includes a standalone version for inclusion in studies without relying on use of SF-36 or SF-12. Valuation methods have also evolved, from standard gamble in-person interviews to online discrete choice experiment surveys. International work related to the SF-6Dv1 and SF-6Dv2 is considered. We also consider recommendations for use, highlighting key psychometric evidence and reimbursement agency recommendations.

A qualitative interview study on quality of life and ageing experiences of autistic adults

Quality of life across the lifespan has been established as a key research priority by the autism community. Still relatively little is known about the quality of life and ageing experiences of older autistic adults. Most studies to date have used generic measures of quality of life which may not accurately capture the experiences of autistic people. The aim of this qualitative study was to understand how autistic adults experience and define quality of life as they age. We conducted semi-structured interviews with 16 autistic adults aged 40+ from the UK and Luxembourg. Using reflexive thematic analysis, we identified five themes that contribute to quality of life: (1) Diagnosis is pivotal, (2) Connection with others, (3) Autonomy over space and time, (4) ‘Paperwork of life’, (5) Vulnerability. This study identifies autism-specific aspects of quality of life and highlights ways in which ageing and autism intersect and impact quality of life.

Quality of Life Effects of Renal Artery Stenting Versus Medical Therapy for Atherosclerotic Renal-Artery Stenosis: Results from the Randomized CORAL Trial.

Renal-artery stenosis can be associated with difficult to control hypertension, although renal-artery stenting has not been shown to improve clinical outcomes. Alternative antihypertensive medications could potentially result in quality of life benefits with renal-artery stenting. We performed a pre-specified quality of life sub-study of the CORAL trial-multicenter, randomized, open-label trial of renal-artery stenting versus medical therapy in patients with atherosclerotic renal-artery stenosis. Longitudinal growth curve models were used to compare the Physical Symptoms Distress Index (PSDI), SF-36, and EQ-5D scores over time between treatment groups. We also sought to validate the approach of assessing quality of life in hypertension studies. Among 906 patients (mean age 69.2±9.1years, 49.7% men), symptom frequency and distress due to side effects from antihypertensive medications changed minimally over time, with no significant differences between treatment groups. There were also no clinically significant differences between treatment groups for the SF-36 and its subscales or the EQ-5D. In internal validation of the quality of life measures, the PSDI correlated well with number/type of antihypertensive medications, and generic health status measures correlated with late clinical events. In a large, multicenter, randomized clinical trial, we found no significant benefit of routine renal-artery stenting over medical management for the treatment of atherosclerotic renal-artery stenosis in terms of disease-specific or generic quality of life measures. As these quality of life measures are important to patients and are associated with medication compliance, future studies of antihypertensive treatments should consider including these quality of life measures as secondary outcomes. Trial registration: ClinicalTrials.gov: NCT00081731.

Validation of the Patient Activation Measure (PAM-13) among individuals with chronic spinal cord injury in mainland China

Context/objective: The 13-item Patient Activation Measure (PAM-13) is the most widely used generic patient activation measure, but spinal cord injury (SCI) related psychometric evaluation of PAM-13 has not been explored globally. This study aimed to assess the validity of the Chinese version of the PAM-13 (PAM-13-C) for individuals with chronic spinal cord injury (CSCI). Design: Cross-sectional study. Setting: Shanghai Sunshine Rehabilitation Center, and some participants were recruited in a WeChat group (the most commonly used social media platform in China). Participants: 284 individuals with spinal cord injury who had lived with the injury for ≥0.5 year. Interventions: NA. Outcome measures: The PAM-13-C, global QoL, seven-item generalized anxiety disorder scale (GAD-7) and nine-item patient health questionnaire (PHQ-9), and General Self-Efficacy Scale (GSES) were used. Results: The mean (SD) PAM-13-C score was 57.4 (16.5). The highest percentage of NA could be observed in item 9 (12.0%). Floor and ceiling effects of the total scores of PAM-13-C were small (0.7% and 6.7%), but a ceiling effect could be observed among all items. Exploratory Factor Analysis supported a one-factor model of the PAM-13-C (CFI = 0.97; RMSEA = 0.07). Construct validity was established through correlation analysis among the PAM-13-C, GAD-7/PHQ-9, global QoL, and GSES. The PAM-13-C demonstrated excellent internal consistency (Cronbach’s α = 0.95) and acceptable test-retest reliability. Conclusion: The PAM-13-C is a reliable and valid measure of patient activation for individuals with CSCI in China.

Women's environmental quality of life is key to their overall quality of life and health: Global evidence from the WHOQOL-100.

Gender inequalities in health-related quality of life (QoL) are generally few and small, even in large surveys. Many generic measures limit assessment to QoL overall and its physical and psychological dimensions, while overlooking internationally important environmental, social, and spiritual QoL domains. Unique cross-cultural legacy data was collected using four WHOQOL-100 surveys of adults living in 43 cultures world-wide (17,608 adults; ages 15-101). It was first used to examined gender profiles of its five QoL international domains, and their component facets. Few significant gender differences (p < .001) were found. Women reported higher spiritual QoL than men on faith, and spiritual connection facets specifically. Men reported higher physical and psychological QoL domains than women. We aimed to identify those QoL dimensions that contribute to women's overall QoL in health, as this information could inform gender inequalities interventions in health. Environmental QoL explained a substantial 46% of women's overall QoL and health (n = 5,017; 17 cultures) (stepwise multiple regression adjusted for age, education, and marital status covariates). Five environmental QoL facets contributed significantly to this result; home environment offered most explanation. Age band analysis was conducted to understand when interventions might be best timed in the lifespan to improve women's QoL. Younger women (< 45 years) reported the poorest QoL across the lifetime, and on every domain. After 45, all domains except physical QoL increased to very good at about 60, and high levels were sustained beyond 75, especially environmental QoL. Global findings show that assessing environmental, social, and spiritual QoL domains are key to fully understanding women's QoL and health. These assessments should be prioritized in surveys that aim to improve international conservation, and public health policies.

Cross-cultural adaptation and content validation of the Singapore English version of EQ-5D-Y: a qualitative study

BackgroundThe EQ-5D-Y is a generic preference-weighted measure for children and adolescents which was developed within Europe. Two versions exist, the EQ-5D-Y-3L (Y-3L) and EQ-5D-Y-5L (Y-5L). This study aimed to cross-culturally adapt the Y-3L and Y-5L for use in Singapore and to assess the content validity, specifically, the relevance and comprehensiveness of the EQ-5D-Y descriptive system (DS) in Asia.MethodsTo culturally adapt the instruments, an expert panel consisting of paediatricians and primary school educators were consulted. Modifications suggested by the expert panel were tested via cognitive debriefing interviews with children aged 8–12 in Singapore. To assess the content validity of the EQ-5D-Y DS, interviews were conducted with both healthy (n = 8) and ill children (n = 6) aged 8–15. In the interviews, children discussed their experience with poor health and commented on the comprehensiveness and relevance of the EQ-5D-Y DS.ResultsThe cross-cultural adaptation process led to minor modifications to the UK English Y-3L and Y-5L versions, including using phrases familiar to the local children and adding examples to facilitate understanding. The five health dimensions in the EQ-5D-Y DS were spontaneously elicited when children discussed their experience with poor health. All health dimensions related to poor health elicited from the interviews fell into three broad categories: physical health (e.g. Appetite, Mobility, and Sleep), mental well-being (e.g. Annoyed/Frustrated and Scared/Worried), and social relationships (e.g. Family and Friends). The EQ-5D-Y DS was generally found to be relevant and comprehensive, although some health dimensions that may be relevant to the local population (Social relationship and Appetite) were not covered.ConclusionsThe UK English EQ-5D-Y instruments were adapted to produce the Singapore English EQ-5D-Y instrument that were comprehensible to local children as young as 8 years old. The EQ-5D-Y DS was generally relevant and comprehensive to measure poor health of local children. Future studies should ascertain the benefits of adding bolt-on items related to social relationships and appetite to the EQ-5D-Y DS.

Multifractal analysis of Hewitt-Stromberg measures with respect to gauge control functions

This study provides a general multifractal formalism that overcomes the limitations of the traditional one. The generic Hewitt-Stromberg measures are used to introduce and study a multifractal formalism. The generic Hewitt-Stromberg dimensions' upper and lower bounds are estimated, producing results even at places $q$ where the upper and lower multifractal Hewitt-Stromberg dimension functions diverge.

The Dermatology Life Quality Index (DLQI) used as the benchmark in validation of 101 quality-of-life instruments: Asystematic review.

The validation of psychometric measures requires use of other established and standardized validated measures. The Dermatology Life Quality Index (DLQI) is the most widely used tool to measure the burden of skin diseases and assess effectiveness of interventions based on patients' perspective. The objective of this study was to systematically analyse peer-reviewed publications describing use of the DLQI in validation of other patient-reported outcome (PRO) and quality-of-life (QoL) measures. Seven databases were searched for papers published between January 1994 and December 2022 for articles containing data using DLQI in the validation of other PRO/QoL measures. The methodology followed PRISMA guidelines. The protocol was prospectively registered on PROSPERO. Of 1717 screened publications, 122 articles including 30,727 patients from 34 different countries with 41 diseases met the inclusion criteria. The DLQI was used in validation of 101 measures: 80 dermatology-specific QoL measures, mostly disease-specific, and 21 generic measures. Of these studies, 47 were cross-cultural adaptations, 116 single arm, 100 were cross-sectional, 18 longitudinal and six randomized placebo controlled. DLQI was used for 14 known group, and correlation for 10 construct, 101 convergent, 10 concurrent, 10 divergent/discriminant and three criterion validity tests using Mann-Whitney (2), Spearman's (80), Pearson's correlation (26) and Student's t-test (1). The DLQI was used in responsiveness analysis in 13 studies. This review identified widespread use of the DLQI in validation of other dermatology PRO/QoL measures and confirmed the central role that the DLQI plays as a benchmark in instrument development and validation across dermatology and beyond. The use of the DLQI by so many developers of other instruments has provided a common standard for comparability.

Measuring utility values of eye conditions among children in India using the EQ-5D-Y instrument

BackgroundVision impairment and blindness are significant global public health challenges, particularly in low- and middle-income countries, where access to eye care services remains limited. India has significantly reduced the prevalence of Blindness and Vision Impairment (VI) over the last two decades. This was achieved with the help of greater investments towards blindness control programs. The use of utility values helps in conducting economic evaluations of various eye health programs and empirically justify investing in these programs. This study aimed to estimate utility values for various childhood eye conditions in central India using the EuroQol-Five-Dimension-Youth (EQ-5D-Y) instrument.MethodsThis is a before and after study with data collected at two time points for few participants and at only one time point for others. This study was undertaken at Shri Sadguru Netra Chikitsalaya (SNC) and included children representing central and north India. Participants were randomly sampled in the hospital. After comprehensive eye examination, participants completed the EuroQol-Five-Dimension-Youth (EQ-5D-Y) questionnaire along with EuroQol Visual Analogue Scale (EQ VAS) measurement to elicit their health state for their condition which was repeated after six months post-intervention to measure the change in utility value. We have used Indonesian value set to analyze the preference scores of each dimension of EQ-5D-Y.ResultsUtility values of 16 eye conditions were estimated at baseline and seven conditions were followed up for post-intervention utility value estimation. There is a statistically significant improvement in the utility values post-intervention amongst six conditions. Blindness and Pediatric cataract had the greatest change (0.23 and 0.2 respectively) in utility value whereas mild Vision Impairment (VI) showed the least change (0.02) in the utility value post-intervention. Blindness had the lowest baseline (0.62) and post-intervention (0.85) utility value.ConclusionThe utility values estimated in this study showed that generic measures such as EQ-5D-Y may be used to elicit health states for various eye conditions amongst children. These estimates are helpful in undertaking cost-utility analyses of eye health programs and interventions aimed at these eye conditions.

Development of a Health-State Classification System for the Pediatric Quality-of-Life Inventory Version 4.0 Generic Core Scales for Preference-Based Valuation in Australia

ObjectivesPediatric Quality-of-Life Inventory Version 4.0 Generic Core Scales (PedsQL GCS), comprising 23 items covering 4 subscales (physical, emotional, social, and school functioning), is a widely applied generic measure of childhood health-related quality of life but does not provide health utilities for cost-effectiveness-based decision making. This study aimed to develop a reduced item version of PedsQL GCS amenable to health utility derivation in Australia. MethodsData sources were 2 cohorts of the Longitudinal Study of Australian Children, including proxy responses for all PedsQL GCS versions (Toddlers, Young Children, Children, and Teens), and the CheckPoint sample containing child self-report to the Children version. Three analytic samples were CheckPoint sample (n = 1874); Mallinson sample containing 1 measurement per child from one of the Young Children, Children, or Teens versions (n = 7855); and Toddlers sample (n = 7401). Exploratory and confirmatory factor analyses assessed dimensionality. Psychometric analyses used Rasch and classical criteria on 3 randomly selected subsamples (n = 500) per sample. Item selection prioritized psychometric performance in the CheckPoint sample, also considering performance in other samples and conceptual content. ResultsDimensionality assessments did not generate an alternative empirical structure for the measure, and psychometric analyses were conducted on the original 4 subscales. The selected items were: “Get aches and pains” for physical functioning; “Feel sad/blue” for emotional functioning; “Other kids not friends” for social functioning; and “Keeping up with school work” for school functioning. ConclusionsThe final 4-item set, pending further psychometric validation and valuation, can generate health utilities from the widely used PedsQL GCS to inform cost-effectiveness-based decision making.

Measuring the quality of care in metastatic colorectal cancer: a scoping review of quality indicators.

Quality indicators are essential for measuring and benchmarking the quality of cancer care. Although there are well-established metrics for early-stage colorectal cancer (CRC), few exist for advanced CRC. This scoping review aimed to collate and review all quality indicators for metastatic CRC. A dedicated search was performed of Web of Science, PubMed, CINAHL, and relevant gray literature to identify quality indicators for metastatic CRC, evaluating the diagnostic workup, systemic anticancer treatments, surgical approaches, radiation approaches, supportive care, and palliative or terminal care provided to patients. We identified 11 articles, of which 5 were systematized reviews and 6 concerned the development, validation, or operationalization of quality indicators. Thirty-five distinct quality indicators for metastatic CRC were extracted across 6 domains of care: 1) diagnosis, staging, and treatment planning; 2) systemic anticancer treatment; 3) radiation oncology; 4) surgical approaches; 5) supportive care; and 6) palliative and end-of-life care, with a general quality indicator of overall survival. Of the 35 quality indicators extracted, 8 (23%) were unique to metastatic CRC and 27 (77%) were generic quality indicators across different tumor types but applicable to metastatic CRC. There are few quality indicators specifically relevant to metastatic CRC. Those that do exist are generally generic process measures used across tumor types and do not measure the nuance or complexity of current multidisciplinary treatment of patients with metastatic CRC.

Health-related quality of life in vibrant soundbridge patients: generic and specific measures, short-term and long-term outcomes.

The goal of the study was to determine the short- and long-term outcome of health-related quality of life (HRQoL) in adults implanted with a Vibrant Soundbridge (VSB). Twenty-one adults (8 females, 13 males; mean age at implantation: 57 ±10 years) who received a unilateral VSB for combined or conductive hearing loss, were administered two questionnaires: the Nijmegen Cochlear Implant Questionnaire (NCIQ) as a measure of hearing-specific HRQoL, and the Health Utility Index 3 (HUI 3) as a measure of generic HRQoL. The questionnaires were administered before implantation and three, six, 12 and 24 months after processor activation. The NCIQ total score raised significantly from 62 points before implantation to 76 points at three months after processor activation (p < 0.005). Thereafter, no significant increases occurred anymore. The HUI 3 multi-attribute score (MAUS) increased from 0.59 before implantation to 0.70 at three months and at six months after processor activation and then declined slightly to 0.68 at 24 months after processor activation. Similar values were observed with the HUI 3 single-attribute score (SAUS) of Hearing. The increases of the HUI 3 scores were not statistically significant, but all pre-post-implantation differences were clinically relevant. VSB recipients experienced a quick improvement of their HRQoL. After just three months of device use, a significant improvement of hearing-specific HRQoL and a clinically relevant improvement of generic HRQoL were seen. After three months, no essential changes of HRQoL occurred in our sample, suggesting that the achieved level of HRQoL may remain stable in the long term.

Task-Adaptive Angle Selection for Computed Tomography-Based Defect Detection.

Sparse-angle X-ray Computed Tomography (CT) plays a vital role in industrial quality control but leads to an inherent trade-off between scan time and reconstruction quality. Adaptive angle selection strategies try to improve upon this based on the idea that the geometry of the object under investigation leads to an uneven distribution of the information content over the projection angles. Deep Reinforcement Learning (DRL) has emerged as an effective approach for adaptive angle selection in X-ray CT. While previous studies focused on optimizing generic image quality measures using a fixed number of angles, our work extends them by considering a specific downstream task, namely image-based defect detection, and introducing flexibility in the number of angles used. By leveraging prior knowledge about typical defect characteristics, our task-adaptive angle selection method, adaptable in terms of angle count, enables easy detection of defects in the reconstructed images.

Cross-cultural adaptation and validation of Carolinas Comfort Scale to Brazilian Portuguese for inguinal hernia.

Inguinal hernias are highly prevalent worldwide and its surgical repair is one of the most common procedures in general surgery. The broad use of mesh has decreased the recurrence rates of inguinal hernia to acceptable levels, thus centering the attention on Quality of Life as a pivotal postoperative outcome. Carolinas Comfort Scale is a well-studied questionnaire designed to identify Quality of Life changes following hernia repair with mesh techniques. The aim of this study is to validate the CCS in Brazilian Portuguese for inguinal hernias. The original CCS was translated into Brazilian Portuguese according to cross-cultural adaptation guidelines. We conducted a cross-sectional study in individuals aged 18 and above who had undergone inguinal laparo-endoscopic hernia repair for at least 6months prior, between January 2019 and August 2022, at a Brazilian tertiary hospital. Participants answered an online survey containing the Brazilian CCS and the generic Patient-Reported Outcome Measure (PROM) Short-Form Health 36 (SF-36). Participants answered the same questionnaires in the follow-up after at least three weeks, with an additional question about satisfaction with surgery results. The survey was completed by 115 patients, of whom 78 (67%) responded to the follow-up questionnaire after 3 to 10weeks. CCS showed excellent internal consistency, with Cronbach's α of 0.94. Intraclass correlation coefficient ranged from 0.60 to 0.82 in the test-retest analysis. Compared to SF-36, a strong correlation was observed in the physical functioning dimension, and a moderate correlation was found in role-physical and bodily pain (Pearson's Coefficient Correlation = 0.502, 0.338 and 0.332 respectively), for construct analysis. The mean CCS score was significantly lower (p < 0.001) among satisfied patients compared to the unsatisfied ones. The Brazilian version of CCS is a valid and reliable method to assess long-term quality of life after inguinal laparo-endoscopic hernia repair.

Converting PROMIS®-29 v2.0 profile data to SF-36 physical and mental component summary scores in patients with cardiovascular disorders

BackgroundHealth-related quality of life (HRQL) has become an important outcome parameter in cardiology. The MOS 36-ltem Short-Form Health Survey (SF-36) and the PROMIS-29 are two widely used generic measures providing composite HRQL scores. The domains of the SF-36, a well-established instrument utilized for several decades, can be aggregated to physical (PCS) and mental (MCS) component summary scores. Alternative scoring algorithms for correlated component scores (PCSc and MCSc) have also been suggested. The PROMIS-29 is a newer but increasingly used HRQL measure. Analogous to the SF-36, physical and mental health summary scores can be derived from PROMIS-29 domain scores, based on a correlated factor solution. So far, scores from the PROMIS-29 are not directly comparable to SF-36 results, complicating the aggregation of research findings. Thus, our aim was to provide algorithms to convert PROMIS-29 data to well-established SF-36 component summary scores.MethodsData from n = 662 participants of the Berlin Long-term Observation of Vascular Events (BeLOVE) study were used to estimate linear regression models with either PROMIS-29 domain scores or aggregated PROMIS-29 physical/mental health summary scores as predictors and SF-36 physical/mental component summary scores as outcomes. Data from a subsequent assessment point (n = 259) were used to evaluate the agreement between empirical and predicted SF-36 scores.ResultsPROMIS-29 domain scores as well as PROMIS-29 health summary scores showed high predictive value for PCS, PCSc, and MCSc (R2 ≥ 70%), and moderate predictive value for MCS (R2 = 57% and R2 = 40%, respectively). After applying the regression coefficients to new data, empirical and predicted SF-36 component summary scores were highly correlated (r > 0.8) for most models. Mean differences between empirical and predicted scores were negligible (|SMD|<0.1).ConclusionsThis study provides easy-to-apply algorithms to convert PROMIS-29 data to well-established SF-36 physical and mental component summary scores in a cardiovascular population. Applied to new data, the agreement between empirical and predicted SF-36 scores was high. However, for SF-36 mental component summary scores, considerably better predictions were found under the correlated (MCSc) than under the original factor model (MCS). Additionally, as a pertinent byproduct, our study confirmed construct validity of the relatively new PROMIS-29 health summary scores in cardiology patients.