Developing and evaluating cross-cultural instruments from minimum requirements to optimal models

Health-related quality of life after total knee arthroplasty and unicompartmental knee arthroplasty for unicompartmental osteoarthritis: A systematic review and meta-analysis

BACKGROUND

While previous research has demonstrated potential advantages of unicompartmental knee arthroplasty (UKA) over total knee arthroplasty (TKA), particularly in terms of clinical outcomes such as function and pain relief, the specific impact on health-related quality of life (HRQOL) remains unclear. This systematic review and meta-analysis aim to address this gap by comparing HRQOL outcomes between UKA and TKA, providing valuable insights for clinical decision-making.

METHODS

We conducted a literature search in the PubMed, Embase, Cochrane Controlled Register of Trials (CENTRAL), and Web of Science databases up to July 15, 2023. Eligible studies assessed HRQOL using EQ-5D, SF-36, or SF-12 and were assessed for methodological quality using the Newcastle-Ottawa Scale (NOS).

RESULTS

Seven eligible studies were included, comprising a total of 64,585 patients with 35,809 undergoing TKA and 28,776 undergoing UKA. Patient age ranged from 52.0 to 67.7 years with an average BMI ranging from 27.2 to 31.0 kg/m2. Follow-up periods ranged from 6 months to 10 years. Five studies (63,829 patients) that evaluated HRQOL using EQ-5D showed significantly better outcomes for UKA compared to TKA (MD -0.04, 95% CI -0.05 to -0.02). Two studies (756 patients) that evaluated HRQOL using SF-36 showed no significant difference between TKA and UKA. Five studies (63,286 patients) that evaluated functional outcomes using Oxford Knee Score (OKS) showed significantly better functional scores for UKA compared to TKA (MD -1.29, 95% CI -1.86 to -0.72). Four studies (24,570 patients) that reported patient satisfaction showed no statistically significant difference between TKA and UKA (MD 0.97, 95% CI 0.90 to 1.05). Further subgroup analysis did not affect the conclusions.

CONCLUSIONS

Our meta-analysis suggests that UKA is associated with better HRQOL and knee function, as well as similar patient satisfaction, compared to TKA for patients with unicompartmental osteoarthritis.

Predictors of health-related quality of life for children with neurodevelopmental conditions

Neurodevelopmental conditions can be associated with decreased health-related quality of life; however, the predictors of these outcomes remain largely unknown. We characterized the predictors of health-related quality of life (HRQoL) in a sample of neurodiverse children and youth. We used a cross-sectional subsample from the Province of Ontario Neurodevelopmental Disorders Network (POND) consisting of those children and young people in the POND dataset with complete study data (total n = 615; 31% female; age: 11.28 years ± 2.84 years). Using a structural equation model, we investigated the effects of demographics (age, sex, socioeconomic status), core features (Social Communication Questionnaire, Toronto Obsessive Compulsive Scale, Strengths and Weaknesses of attention deficit/hyperactivity disorder (ADHD)-symptoms and Normal Behavior), co-occurring symptoms (Child Behaviour Checklist), and adaptive functioning (Adaptive Behaviour Assessment System) on HRQoL (KINDL). A total of 615 participants had complete data for this study (autism = 135, ADHD = 273, subthreshold ADHD = 7, obsessive-compulsive disorder (OCD) = 38, sub-threshold OCD = 1, neurotypical = 161). Of these participants, 190 (31%) identified as female, and 425 (69%) identified as male. The mean age was 11.28 years ± 2.84 years. Health-related quality of life was negatively associated with co-occurring symptoms (B = - 0.6, SE = 0.20, CI (- 0.95, - 0.19), p = 0.004)) and age (B = - 0.1, SE = 0.04, CI (- 0.19, - 0.01), p = 0.037). Fewer co-occurring symptoms were associated with higher socioeconomic status (B = - 0.5, SE = - 0.05, CI (- 0.58, - 0.37), p < 0.001). This study used a cross-sectional design. Given that one's experiences, needs, supports, and environment and thus HrQoL may change significantly over the lifespan and a longitudinal analysis of predictors is needed to capture these changes. Future studies with more diverse participant groups are needed. These results demonstrate the importance of behavioural and sociodemographic characteristics on health-related quality of life across neurodevelopmental conditions.

Cross-cultural differences through subjective cognition: illustration in translatology with the SSTIC-E in the UAE

The development of appropriate and valid multicultural and multilingual instruments research is necessary due to a growing multicultural and multilingual society in the 21st century. We explored the use of a cognitive scale related to subjective complaints, focusing on the first step: a cross-cultural and semantic validation. This study presents the translation and cross-validation process of the "Subjective Scale to Investigate Cognition in Schizophrenia" (SSTICS) for the United Arab Emirates (UAE) region via different languages used in Dubaï/Abu Dhabi. This scale measures cognitive complaints and has been validated with psychosis and used in 20 clinical trials worldwide. It evaluates areas of the illness related to self-awareness focusing on memory dysfunction and deficits of attention, language, and praxis. We described the method of cross-cultural validation, with back-translation, semantic steps, and societal contexts. The use of the Subjective Scale to Investigate Cognition in Emirates (SSTIC-E) was explored with different samples of UAE Arabic-speaking subjects. First, a pilot sample mean SSTICS total score was 16.5 (SD:16.9); (p < 0.001). The SSTIC-E was then administered to 126 patients and 84 healthy control participants. The healthy group has a lower mean score of 22.55 (SD = 12.04) vs. 34.06 (SD = 15.19). The method was extended to nine other languages, namely, Pakistani/Urdu, Hindi, Marathi, Lithuanian, Serbian, German, Romanian, Sinhala, and Russian. The scales are provided in the article. The overall aim of the translation process should be to stay close to the original version of the instrument so that it is meaningful and easily understood by the target language population. However, for construct validity, some items must be adapted at the time of translation to ensure that the questioned cognitive domain is respected. For example, cooking, an executive function, does not have the same occurrence for an Emirati male, or remembering a prime minister's name, semantic memory, requires an electoral system to appoint the leader of a country. Translation methods and processes present many challenges but applying relevant and creative strategies to reduce errors is essential to achieve semantic validation. This study aims to measure personally experienced knowledge or attitudes; such language effects can be a thorny problem.

French Translation and Cross-cultural Adaptation of the Scale for the Assessment and Rating of Ataxia

The Scale for the Assessment and Rating of Ataxia (SARA) is a widely used scale for assessing the severity of ataxia in clinics, natural history studies, and treatment trials worldwide. However, no French translation with validated cross-cultural adaptation is available. This study aimed to translate and adapt the SARA into French. The translation process was conducted according to the ISPOR guidelines for the translation and cultural adaptation process for patient-reported outcomes. A total of five translators, an expert committee, and two physiotherapists took part in the process to assess and ensure comprehension and language equivalences of the final French version. A few misinterpretations were pointed out during the translation process and were changed accordingly by the translation team. The French version of the SARA is ready to be used in clinical and research settings with French-speaking populations living with ataxia.

Health-Related Quality of Life in Patients With Ventricular Assist Device: Psychometric Evaluation of the German Version of the Quality of Life With a Ventricular Assist Device Questionnaire

BACKGROUND

Ventricular assist device (VAD) implantation has become an alternative treatment for patients with end-stage heart failure. In Germany, valid and reliable instruments to assess health-related quality of life in patients with VAD are lacking.

OBJECTIVE

The aim of this study was to present the psychometric validation of the German version of the Quality of Life with a Ventricular Assist Device questionnaire.

METHODS

In a multicenter, cross-sectional study, 393 participants (mean age, 58.3 years; 85.8% male, 60.3% bridge to transplant, and 72.8% living with VAD for ≤2 years) completed the German Quality of Life with a Ventricular Assist Device questionnaire of physical, emotional, social, cognitive, and meaning/spiritual domains. Item and confirmatory factor analyses were conducted to test item difficulty and discrimination and the underlying structure, respectively. To examine internal consistency, Cronbach α was assessed. Convergent construct validity was tested using the Kansas City Cardiomyopathy Questionnaire and the Patient Health Questionnaire-9. Readability was examined using Flesch Reading Ease index and Vienna Factual Text Formula.

RESULTS

The Quality of Life with a Ventricular Assist Device showed reasonable item difficulty (Ptotal = .67) and mostly moderate to high discriminatory power (rit > 0.30). In confirmatory factor analysis, root-mean-square error of approximation (0.07) was acceptable for model fit, but no other indices. Acceptable internal consistency was found (α ≥ 0.79), with the exception of the cognitive domain (α = 0.58). The overall questionnaire and single domains demonstrated convergent validity (r ≥ 0.45, P < .001). The questionnaire showed adequate readability (Flesch Reading Ease, 64.11; Vienna Factual Text Formula, 6.91).

CONCLUSION

Findings indicate a promising standardized clinical instrument to assess health-related quality of life in patients with VAD.

Patient enablement and health-related quality of life for patients with chronic back and knee pain: a cross-sectional study in primary care

BACKGROUND

Chronic back and knee pain impairs health- related quality of life (HRQoL) and patient enablement can improve HRQoL.

AIM

To determine whether enablement was a moderator of the effect of chronic back and knee pain on HRQoL.

DESIGN AND SETTING

A cross-sectional study of Chinese patients with chronic back and knee problems in public primary care clinics in Hong Kong.

METHOD

Each participant completed the Chinese Patient Enablement Instrument-2 (PEI-2), the Chinese Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), and the Pain Rating Scale (PRS). Multivariable regression examined the effects of PRS score and PEI-2 score on WOMAC total score. A moderation regression model and simple slope analysis were used to evaluate whether the interaction between enablement (PEI-2) and pain (PRS) had a significant effect on HRQoL (WOMAC).

RESULTS

Valid patient-reported outcome data from 1306 participants were analysed. PRS score was associated with WOMAC total score (β = 0.326, P<0.001), whereas PEI-2 score was associated inversely with WOMAC total score (β = -0.260, P<0.001) and PRS score. The effect of the interaction between PRS and PEI-2 (PRS × PEI-2) scores on WOMAC total score was significant (β = -0.191, P<0.001) suggesting PEI-2 was a moderator. Simple slope analyses showed that the relationship between PRS and WOMAC was stronger for participants with a low level of PEI-2 (gradient 3.056) than for those with a high level of PEI-2 (gradient 1.746).

CONCLUSION

Patient enablement moderated the impact of pain on HRQoL. A higher level of enablement can lessen impairment in HRQoL associated with chronic back and knee pain.

Identifying domains of health-related quality of life: the perspective of individuals with low back pain

BACKGROUND

Identifying the most relevant HRQOL domains for LBP from the perspective of individuals with lived experience with LBP is necessary to prioritize domains that will be most informative for evaluating the impact of pain and interventions while overcoming the burden of using long-form assessment tools. This study aimed to identify which domains of HRQOL are most important from the perspective of individuals with chronic LBP.

METHODS

Semi-structured interviews were conducted with 26 individuals with LBP. Participants first responded to questions related to the impact of their LBP on their HRQOL. Then, using a card sorting method, they were asked to select and indicate HRQOL domains that were most relevant to them from a list of 18 cards that represented different HRQOL domains. Participants were asked to explain the reasoning for their selection.

RESULTS

Participants identified physical activity restriction (50%), severity of pain (31%), social activity restriction (23%), and work performance restriction (23%) as the most important domains. The most frequently selected HRQOL domains during card sorting were social function (69%), pain intensity (62%), physical function (58%), fatigue (58%), and pain interference (42%).

CONCLUSION

The most important domains of HRQOL perceived by participants were pain intensity, social function, physical function, fatigue, and pain interference. Identifying these domains will inform clinical decision-making and guide treatment choices for health care providers.

Dimensional structure of the OHIP-14 and associations with self-report oral health-related variables in home-dwelling Norwegians aged 70

OBJECTIVES

The primary objective of the present study was to investigate the dimensional structure of the OHIP-14 in a sample of elderly Norwegians. A secondary objective was to describe associations between the exposed OHIP-14 dimensions and additional self-report oral health-related variables to assess the dimensions' criterion validity.

MATERIALS AND METHODS

A survey questionnaire including the OHIP-14 and additional self-report oral health-related measures was completed by 325 home-dwelling Norwegians aged 70+. Exploratory factor analysis was used to investigate the dimensional structure of the OHIP-14 in this sample. Bivariate correlations were used to describe associations between the exposed OHIP-14 dimensions and additional self-report oral health-related variables.

RESULTS

Three dimensions named psychosocial impacts, oral function impacts and general function impacts were revealed. Convergent and discriminant validity of these dimensions were largely supported, and internal consistency reliability for each dimension was good. Statistically significant associations were found between the exposed dimensions and additional self-report oral health-related variables, supporting the dimensions' criterion validity.

CONCLUSIONS

A three-dimensional structure of the OHIP-14 was exposed and validated in the present study sample. Since different aspects of oral health-related quality of life (OHRQoL) may be perceived and weighted differently in various populations, suggestions for future research include more profound investigations of the construct validity of the OHIP-14 and similar instruments assessing OHRQoL. Such research should include an exploration of various dimensions and the weights given to them through qualitative research in the target population(s).

Health-Related Quality of Life in People Living With HIV With Cognitive Symptoms: Assessing Relevant Domains and Associations

This study aimed to validate and assess a comprehensive set of illness-specific health-related quality of life (HRQL) domains in people living with HIV (PLWH) with cognitive symptoms. One hundred and three HIV patients with cognitive symptoms (n = 93 male, 90.3%) were identified from two UK HIV clinics and complete a series of validated scales measuring seven HRQL domains identified as important to HRQL by PLWH with cognitive impairment. These included: physical functioning, cognition, social connectedness, self-concept, HIV stigma, acceptance of and perceived control over cognitive health, and physical and mental health and wellbeing. Exploratory factor analysis confirmed that domain total scores loaded onto one main factor, representing HRQL. Scale cut-off scores revealed a significant proportion of patients scored outside the normal range on single domains (between 26.2% and 79.6%), and many patients on multiple domains (40.8% on 4 or more domains). We found evidence of poor HRQL across domains in the majority of PLWH with cognitive symptoms and identified domains driving these experiences. This provides targets for intervention development and clinical action to maintain or improve HRQL in PLWH with cognitive symptoms or impairment.

The Validity of Health-Related Quality of Life Instruments in Patients With Late-Stage Parkinson's Disease

OBJECTIVE

To examine the validity of health-related quality of life (Hr-QoL) measures in patients with late-stage Parkinson's disease (PD).

METHODS

We analysed data from patients with late-stage PD and their carers who were assessed with a range of clinical measures and the EQ-5D-3 L. The DEMQOL-Proxy was completed for 157 patients with a diagnosis of dementia and the PDQ-8 by 401 patients without dementia. Convergent validity was assessed using correlations with measures of Parkinson's severity, independence and cognitive function, and construct validity using correlations with patients' own EQ-5D-3 L scores. In addition, we assessed divergent validity using correlations with carers' own EQ-5D index, EQ-VAS and Zarit caregiver burden scores.

RESULTS

In patients without dementia, both the PDQ-8 and EQ-5D-3 L correlated with measures of disease severity, dependence and carer burden scores, and PDQ-8 scores moderately with EQ-5D-3 L and EQ-5D-3 L VAS scores. In patients with dementia, EQ-5D-3 L scores correlated with disease severity, cognition and dependence scores, but DEMQOL-Proxy scores were moderately associated only with patients' dependence and carers' own EQ-5D-3 L scores but not patients' disease severity, EQ-5D-3 L or cognitive scores.

CONCLUSIONS

The PDQ-8 and EQ-5D-3 L have adequate validity in late stage PD without dementia, but in those with PD and dementia the EQ-5D-3 L may be preferable to the DEMQOL-Proxy.

The clinical correlations of fatigue in patients with sarcoidosis

Introduction: Fatigue is considered a frequent and characteristic feature of sarcoidosis. This study was designed to determine the prevalence of fatigue in patients with sarcoidosis and to determine its potential clinical correlations in relation to symptom severity. Methods: A total of 56 sarcoidosis patients were included. Data on patient demographics, anthropometrics, disease characteristics, pulmonary function tests, 6-min walking distance (6MWD), blood biochemistry and hemogram findings were retrieved from hospital records. Psychometric instruments involved fatigue assessment scale (FAS), Beck Depression Inventory (BDI) and Short Form-36 (SF-36) for health-related QOL (HRQOL). Results: Mean±SD patient age was 50.9±11.9 years. Of 56 patients, 44 were females and 12 were males. When compared to FAS score

Feasibility and acceptability of electronic EQ-5D-5L for routine measurement of HRQOL in patients with chronic musculoskeletal problems in Hong Kong primary care

BACKGROUND

Information on HRQOL can enhance patient diagnosis and management but it is rarely available in routine clinical practice. This mixed-method study evaluated the feasibility and acceptability of the electronic EQ-5D-5L measurement of HRQOL in patients with chronic musculoskeletal problems in primary care.

METHODS

In three primary care clinics, 665 patients with musculoskeletal problems completed the electronic EQ-5D-5L and Visual Analogue Scale (e-EQ-5D-5L/VAS), and a questionnaire on socio-demographics, perceived ease of use (PEOU), and perceived usefulness (PU) at baseline and two follow-ups. Patient completion and response rates, and time to complete the e-EQ-5D-5L/VAS were measured. During the same consultations, 49 doctors reviewed the e-EQ-5D-5L/VAS reports and completed a clinician questionnaire on PEOU, PU, and time spent to address each report. Individual interviews along with focus group discussions were conducted on patients, doctors, and research assistants for further exploration.

RESULTS

Mean completion time reduced from baseline to first and second follow-up (120.66, 83.99, and 105.22 s, respectively). Completion and response rates were high at each follow-up visit (> 99.8% and > 91.11%, respectively). Doctors needed less than 2 min to read the report but felt the time required to address the report was a significant barrier. Some patients had difficulties using e-platforms, in understanding or answering questions; but, PEOU improved with time (p < 0.001). Most patients found the e-platforms useful (> 85.3%). Clinicians agreed a great majority of the reports were easy to use (76.0-85.1%) and useful (69.2-72.0%), particularly aiding with a holistic view of the patient's musculoskeletal problem.

CONCLUSION

The e-EQ-5D-5L/VAS is a feasible and acceptable measurement of HRQOL of patients with chronic musculoskeletal problems in routine primary care in Hong Kong which can assist real-time management decisions.

TRIAL REGISTRATION

NCT03609762.

Italian translation and cross-cultural validation of an assessment tool for participation in stroke survivors: the Frenchay Activities Index

PURPOSE

Participation needs to be assessed objectively, to state accurate rehabilitation objectives. The Frenchay Activities Index (FAI) is a widely used tool to measure participation in stroke patients. To date, no cross-culturally validated Italian version of FAI is available. This study provides a translation and cross-cultural adaptation of FAI into Italian, assessing its validity and reliability in sub-acute stroke patients.

METHODS

According to international guidelines, a multistep translation and cultural adaptation protocol of forward and backward translations was conducted by qualified linguists and independent native English translators and revised by a healthcare committee. Patients admitted to intensive inpatient rehabilitation after stroke were recruited. Structural validity, reliability (internal consistency, inter- and intra-rater reliability and measurement error), and construct validity were studied.

RESULTS

One hundred and seventy-three patients were included in this study. No significant observations in terms of comprehensibility and conceptual equivalence of the FAI Italian version emerged. The exploratory factorial analysis revealed the presence of two subscales (i.e., domestic chores and work/leisure). The internal consistency resulted good for the first and second subscale (α = 0.821 and 0.716, respectively). Intra- and inter-reliability showed an ICC > 0.90 for both subscales. SEM = 5.75% and 2.33% and MDC = 15.85% and 6.48% were found for the first and second subscale, respectively. Construct validity of first subscale was satisfactory, as 100.0% a priori hypotheses were met, while for the second subscale it was moderate, as 66.6% a priori hypotheses were respected.

CONCLUSION

FAI-I provides a tool for professionals to measure participation in Italian stroke patients in health and social care settings.

Cross-cultural adaptation and reliability of the Arabic version of Children’s Hand-use Experience Questionnaire (CHEQ)

Background

Validated outcome measures are essential for assessment and treatment of children with disabilities. The Children’s Hand-use Experience Questionnaire (CHEQ) was developed and validated for use in Western countries for children with unilateral hand dysfunction. This study aimed to perform a cross-cultural adaptation and investigate reliability for the Arabic CHEQ.

Methods

Translation and cross-cultural adaptation were performed in four phases: (i) forward-translation and reconciliation with feedback from parents and typically developing children from Jordan (n = 14); (ii) backward-translation and review; (iii) cognitive debriefing with parents and/or their children with unilateral hand dysfunction (n = 17); and (iv) review and proofreading. In the psychometric analyses, 161 children from Jordan (mean age [SD] 10y 8 m [5y 8 m]; 88 males) participated. Internal consistency was evaluated with Cronbach’s alpha. Test-retest reliability was evaluated in 39 children with intraclass correlation coefficient (ICC) and weighted kappa (κ).

Results

Synonyms of four words were added to accommodate for different Arabic dialects. On average, 93% of children with unilateral hand dysfunction and their parents understood the CHEQ items. One response alternative, ‘Get help’, to the opening question was unclear for 70% of the respondents and need further explanation. Two items about using a knife and fork were difficult to comprehend and culturally irrelevant. High internal consistency was demonstrated (Cronbach’s alphas 0.94- 0.97) and moderate to excellent ICC (0.77–0.93). For 18 individual items, κ indicated poor to good agreement (κ between 0.28 and 0.66).

Conclusions

After the suggested minor adjustments, the Arabic CHEQ will be comprehensible, culturally relevant and reliable for assessing children with unilateral hand dysfunction in Jordan.

UNDENATURED COLLAGEN TYPE II FOR THE TREATMENT OF OSTEOARTHRITIS OF THE KNEE

Objective:

To test the hypothesis that undenatured type II collagen (UC-II) relieves pain, quality of life, and joint function in women aged from 60 to 80 years with knee osteoarthritis.

Methods:

53 patients in the UC-II treatment group (for 90 days) and 52 in the control group (without UC-II) were evaluated at 1, 30, and 90 days regarding health-related quality of life, pain, and function with questionnaires, anthropometric data, alignment, range of motion, and radiographic analysis.

Results:

Quality of life increased significantly in the Physical domain in the treatment vs control group. Also, there was a difference between the first and the last evaluation on the pain visual analog scale (−3.8 ± 1.8 versus −1.3 ± 2.0) and on the WOMAC score (−9.5 ± 11.9 versus −1.3 ± 11.1). No variation in the temporal evolution of the Mental domain was found.

Conclusion:

Pain, joint stiffness, and quality of life (Physical domain) improved with the inclusion of UC-II for 90 days to the therapeutic toolbox for knee osteoarthritis in individuals aged 60 to 80 years. Level of evidence II, Comparative Prospective Study.

Validation of the Greek ORTO-15 questionnaire for the assessment of orthorexia nervosa and its relation to eating disorders symptomatology

PURPOSE

The aim of the study was the validation of the Greek version of the ORTO-15 questionnaire. An additional aim was to explore the relation between orthorexic and eating disorder behaviors in a sample of Greek students.

METHODS

ORTO-15 was translated and adapted in the Greek language. After its final version was drafted, its test-retest reliability was checked. Then, the questionnaire was administered to 120 students of psychology along with EAT-26. Additionally, demographics, BMI and information related to eating disorders were collected.

RESULTS

The Greek version of the ORTO-15 questionnaire showed acceptable internal consistency (Cronbach's a 0.7). Factor analysis produced a three-factor model similar to the original English version of the questionnaire. The correlation of ORTO-15 and EAT-26 revealed that higher measurements in the diet and bulimia EAT-26 scale were related to increased orthorexic symptomatology. Finally, there was no significant correlation between the 3 factors of the ORTO-15 (emotional, rational and behavioral) and age, education or Body Mass Index.

CONCLUSIONS

This study is the first attempt to assess orthorexia nervosa in a Greek student population. ORTO-15 was found to be a reliable tool for the measurement of orthorexia in Greece. Finally, in accordance with other studies, orthorexic symptoms were partially related to eating disorder symptomatology, thus raising the question of possible similarities and overlap between the two clinical constructs.

LEVEL OF EVIDENCE

Level V, Cross-sectional descriptive study.

Validity and reliability of the Italian version of the cardiac quality of life questionnaire for pediatric patients with heart disease (PedsQLTM)

Background

Congenital heart disease (CHD) accounts for nearly a third of all major congenital anomalies. Advances in pediatric cardiology shifted attention from mortality to morbidity and health-related quality of life (HRQOL) of patients with CHD and impact on their families. The purposes of this study were to assess the validity and reliability of the Italian version of the Pediatric Quality of Life (PedsQL) Cardiac Module and to create normative data for the Italian population.

Methods

This was an observational cross-sectional study of pediatric patients (aged 2–18 years) with congenital or acquired Heart Disease (HD) and their parents. Families were asked to complete the cardiac pediatric health-related quality of life questionnaire (the Italian PedsQL™ 3.0 Cardiac Module) and the generic pediatric health-related quality of life questionnaire (PedsQL™ 4.0 Generic Core Scales). The sequential validation procedure of the original United States version of the PedsQL™ 3.0 Cardiac Module was carried out under the instruction of the MAPI Research Institute.

To assess construct validity, Pearson’s correlation coefficients were assessed between scores on the Cardiac Module scales and scores on the scales of the General Module. To determine agreement between patient self-report and parent proxy-report, we used intraclass correlation coefficients (ICCs). To evaluate Internal consistency of items, we used Cronbach’s alpha Coefficient.

Results

The study enrolled 400 patients. Construct validity is good between PedsQL Cardiac Module total scores and PedsQL total scores (p < 0.001). The recommended standard value of 0.7 was reached on the Cardiac and General Module core scales. Intercorrelations between PedsQL Cardiac module and PedsQL scores revealed medium to large correlations. In general, correlations between Patient self-reports are poorer than Parent-proxy ones.

Conclusions

Cardiac PedsQL scores are valid and reliable for pediatric patients with congenital and acquired HD and may be useful for future research and clinical management.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12872-021-02157-5.

Feasibility of Routine Quality of Life Measurement for People Living With Dementia in Long-Term Care

OBJECTIVES

Maximizing quality of life (QoL) is the ultimate goal of long-term dementia care. However, routine QoL measurement is rare in nursing home (NH) and assisted living (AL) facilities. Routine QoL measurement might lead to improvements in resident QoL. Our objective was to assess the feasibility of using DEMQOL-CH, completed by long-term care staff in video calls with researchers, to assess health-related quality of life (HrQoL) of NH and AL residents with dementia or other cognitive impairment.

DESIGN

Cross-sectional study.

SETTING AND PARTICIPANTS

We included a convenience sample of 5 NHs and 5 AL facilities in the Canadian province of Alberta. Forty-two care staff who had worked in the facility for ≥3 months completed DEMQOL-CH assessments of 183 residents who had lived in the facility for 3 months or more and were aged ≥65 years. Sixteen residents were assessed independently by 2 care staff to assess inter-rater reliability.

METHODS

We assessed HrQoL in people with dementia or other cognitive impairment using DEMQOL-CH, and assessed time to complete, inter-rater reliability, internal consistency reliability, and care staff ratings of feasibility of completing the DEMQOL-CH.

RESULTS

Average time to complete DEMQOL-CH was <5 minutes. Staff characteristics were not associated with time to complete or DEMQOL-CH scores. Inter-rater reliability [0.735, 95% confidence interval (CI): 0.712-0.780] and internal consistency reliability (0.834, 95% CI: 0.779-0.864) were high. The DEMQOL-CH score varied across residents (mean = 84.8, standard deviation = 11.20, 95% CI: 83.2-86.4). Care aides and managers rated use of the DEMQOL-CH as highly feasible, acceptable, and valuable.

CONCLUSIONS AND IMPLICATIONS

This study provides a proof of concept that DEMQOL-CH can be used to assess HrQoL in NH and AL residents and provides initial indications of feasibility and resources required. DEMQOL-CH may be used to support actions to improve the QoL of residents.

Integrative review and evaluation of quality of life related instruments in pediatric urology

INTRODUCTION

While most paediatric urologists consider patients' quality of life (QOL) important, few actually measure this outcome. Our goal was to assess instruments used in the pediatric urology QOL literature, specifically looking at whether they captured QOL.

METHODS

We searched MEDLINE and EMBASE for articles with a self-described primary outcome of measuring QOL. All validated QOL instruments in the papers were analyzed by QOL instrument content experts. Instruments were classified as focusing on: Functioning or QOL (Table). The term Functioning focuses on performing activities. QOL captures person's perceptions about their position in life, informed by circumstances, functioning and conditions. QOL instruments were further subdivided into generic QOL, health-related QOL (HRQOL) and disease-specific HRQOL. Only direct patient self-reported QOL instruments were then assessed, since they are the most clinically useful, reliably assessing patients' own perception of their QOL.

RESULTS

Forty-three publications met inclusion criteria (published 1999-2019). Most common conditions included urinary incontinence (16, 37.2%) and kidney transplantation (12, 27.9%). Overall, 22 unique instruments purporting to measure QOL were identified. Looking at the concepts measured by each instrument, nine instruments (40.9%) assessed Functioning. Nine instruments (40.9%) measured a combination of Functioning and QOL. Only the remaining 4 instruments (18.2%) assessed strictly QOL. The 13 instruments assessing any QOL focused on generic QOL (n = 4), HRQOL (n = 3) and disease-specific HRQOL (n = 6). Of the subset of four instruments assessing strictly QOL, and not Functioning, all had patient self-reported versions available: two generic QOL instruments (KINDL, KIDSCREEN), one generic HRQOL (DISABKIDS), and one disease-specific HRQOL (QUALAS). Thirteen of 43 studies (30.2%) employed more than one instrument. Thirty-eight studies (88.4%) used an instrument measuring Functioning, with 19 (44.1%) measuring only Functioning, not QOL at all. Twenty-four studies (55.8%) used an instrument measuring actual QOL, although 17 (39.5%) used a combined Functioning/QOL instrument. Only nine (20.9%) used a strictly QOL instrument (strictly HRQOL instruments: 4.7%).

DISCUSSION

We present encouraging evidence of sustained interest in QOL research in pediatric urology and identify areas needing improvement. Selecting appropriate QOL tools requires a working knowledge of their various underlying meanings and purposes. Whether it adequately assess QOL must be considered. We discuss strengths and weaknesses of instruments and a practical approach to QOL instrument selection.

CONCLUSION

Much of pediatric urology is grounded in improving QOL. Unfortunately, most studies published to date focus on Functioning, rather than young people's perception-based QOL. Future QOL studies should ideally employ validated instruments capturing patient-reported QOL.

Psychometric properties and use of the DEMQOL suite of instruments in research: a systematic review protocol

INTRODUCTION

Dementia is a public health issue and a major risk factor for poor quality of life among older adults. In the absence of a cure, enhancing health-related quality of life (HRQoL) of people with dementia is the primary goal of care. Robust measurement of HRQoL is a prerequisite to effective improvement. The DEMQOL suite of instruments is considered among the best available to measure HRQoL in people with dementia; however, no review has systematically and comprehensively examined the use of the DEMQOL in research and summarised evidence to determine its feasibility, acceptability and appropriateness for use in research and practice.

METHODS AND ANALYSIS

We will systematically search 12 electronic databases and reference lists of all included studies. We will include systematically conducted reviews, as well as, quantitative and qualitative research studies that report on the development, validation or use in research studies of any of the DEMQOL instruments. Two reviewers will independently screen all studies for eligibility, and assess the quality of each included study using one of four validated checklists appropriate for different study designs. Discrepancies at all stages of the review will be resolved by consensus. We will use descriptive statistics (frequencies, proportions, ranges), content analysis of narrative data and vote counting (for the measures of association) to summarise the data elements. Using narrative synthesis, we will summarise what is known about the development, validation, feasibility, acceptability, appropriateness and use of the DEMQOL. Our review methods will follow the reporting and conduct guidelines of the Cochrane Handbook for Systematic Reviews of Interventions and the Preferred Reporting Items for Systematic Reviews and Meta-Analysis.

ETHICS AND DISSEMINATION

Ethical approval is not required as this project does not involve primary data collection. We will disseminate our findings through peer-reviewed publications and conference presentations.

PROSPERO REGISTRATION NUMBER

CRD42020157851.

Safety and Quality-of-Life Data from an Italian Expanded Access Program of Lenvatinib for Treatment of Thyroid Cancer

Background: Lenvatinib, a multikinase inhibitor, is for progressive radioiodine-refractory-differentiated thyroid cancer (RR-DTC) patients. However, there are a lot of drug-related adverse events (AEs) that can affect the quality of life (QoL) of patients. The aims of this study were (a) to evaluate, and compared with other series, the safety of lenvatinib used in RR-DTC patients enrolled in an Italian expanded access program (EAP), and (b) to evaluate their QoL during treatment with lenvatinib. Methods: To evaluate the safety, we recorded and graded all AEs during the 6 months of lenvatinib treatment in 39 RR-DTC patients. We compared the safety profile of lenvatinib observed in our patients with that reported in the study of (E7080) levatinib in differentiated cancer of the thyroid (SELECT) and tumeurs thyroidiennes refractaires (TUTHYREF) network studies. Moreover, we evaluated the QoL in our series by using the European Organization for Research and Treatment (EORTC) Quality of Life Questionnaire-Core 30 and the pain visual analogue scale (VAS). Results: The most frequent AEs among our 39 RR-DTC patients were hypertension (80.5%), fatigue (58.3%), diarrhea (36.1%), stomatitis (33.3%), hand/foot syndrome (33.3%), and weight loss (30.5%). The most prevalent grade 3/4 AE was hypertension (25%). When compared with previous studies (i.e., SELECT and TUTHYREF), a significantly lower percentage of our patients experienced diarrhea, nausea, proteinuria, and weight loss. No statistically significant differences in the QoL of our patients evaluated before, during, and at the end of follow-up (6 months after starting the therapy) were found. However, a slight improvement of the general health and emotional and cognitive status associated with a slightly worsening of physical role and social functioning was observed during these 6 months. Pain, dyspnea, insomnia, and constipation moved toward better values, while fatigue, nausea and vomiting, appetite loss, and diarrhea worsened. By comparing the pain VAS, an overall reduction of the level of pain was found. Conclusions: The safety profile of the drug was similar to that already reported with some differences in the prevalence and severity of the AEs. Regarding the QoL, the EAP showed a trend of improvement of the global health status and a reduction of symptoms correlated to the disease. The clinical impact of fatigue, anorexia/weight loss and stomatitis, mainly due to the drug itself, continues to represent the major issue in the management of these patients.

Nine Forward-Backward Translations of the Hopkins Symptom Checklist-25 With Cultural Checks

Introduction: The Hopkins Symptom Checklist-25 (HSCL-25) is an effective, reliable, and ergonomic tool that can be used for depression diagnosis and monitoring in daily practice. To allow its broad use by family practice physicians (FPs), it was translated from English into nine European languages (Greek, Polish, Bulgarian, Croatian, Catalan, Galician, Spanish, Italian, and French) and the translation homogeneity was confirmed. This study describes this process. Methods: First, two translators (an academic translator and an FP researcher) were recruited for the forward translation (FT). A panel of English-speaking FPs that included at least 15 experts (researchers, teachers, and practitioners) was organized in each country to finalize the FT using a Delphi procedure. Results: One or two Delphi procedure rounds were sufficient for each translation. Then, a different translator, who did not know the original version of the HSCL-25, performed a backward translation in English. An expert panel of linguists compared the two English versions. Differences were listed and a multicultural consensus group determined whether they were due to linguistic problems or to cultural differences. All versions underwent cultural check. Conclusion: All nine translations were finalized without altering the original meaning.

Does health-related quality of life in Asian informal caregivers differ between early-onset dementia and late-onset dementia?

AIM

Early-onset dementia (EOD) (defined as dementia onset before age 65) presents specific challenges and issues, adding to the negative impact of dementia on the health-related quality of life (HRQOL) of both patients and their caregivers. However, very few published studies have specifically compared the HRQOL of caregivers of people with EOD and late-onset dementia (LOD). This information is critical in allocating and prioritizing scarce health-care resources. We aimed to assess the HRQOL of primary informal caregivers of community-dwelling individuals with EOD in Singapore and compare it with that of caregivers of individuals with LOD.

METHODS

This was a cross-sectional study of consecutive patient-caregiver dyads from a tertiary dementia clinic.

RESULTS

No significant differences in disease severity were found between the 111 EOD and 235 LOD patient-caregiver dyads. The mean Mental Component Summary score of the 36-item Short-Form Health Survey version 2 was significantly worse in caregivers of EOD patients than in LOD caregivers (mean: 41.42 vs 45.12, P = 0.001), although the mean Physical Component Summary scores were comparable (49.71 vs 49.53, P = 0.934). However, the impact of dementia early onset on caregivers' mental health diminished immediately after adjustment for the disease severity indicators, of which the Neuropsychiatric Inventory Questionnaire distress score was the only significant clinical factor (regression coefficient β = -0.29, P < 0.001). The amount of variability in the HRQOL of the caregivers explained by patient and caregiver factors across all the models was rather small (adjusted R² = 19.3% for the Mental Composite Score, 5.2% for Physical Composite Score).

CONCLUSION

Caregivers of EOD patients had worse mental health than LOD caregivers probably because individual with EOD have more behavioural disturbances. This reinforces the indispensable role of managing behavioural problems when caring for a family member with dementia, especially for EOD. HRQOL ideally needs to be assessed based on self-report rather than inferences from indirect data such as the subjective caregiver burden.

Psychometric properties of the Urdu version of the Hospital Anxiety and Depression Scale (HADS) among pregnant women in Abbottabad, Pakistan

Background

The Hospital Anxiety and Depression Scale (HADS) is a widely used instrument to measure anxiety and depression symptoms.

Aims

This study aimed to translate, validate and test the applicability of the Urdu version of the Hospital Anxiety and Depression Scale (HADS/UV) among pregnant women.

Methods

The original English version of the HADS was translated into Urdu by three bilingual experts and retranslated to English using the forward–backward approach. The questionnaire was administered to a sample of 200 pregnant women availing obstetrics and gynaecology services for routine prenatal check-ups of Ayub Teaching Hospital, Abbottabad, Pakistan. Psychometric properties of the instrument, including reliability (internal consistency, test–retest analysis and interitems correlation), were tested. Face and content validity were also assessed. Content Validity Index (CVI) was determined using the average approach and Item-Level Content Validity Index (I-CVI) and Scale-Level Content Validity Index (S-CVI) were calculated accordingly. Construct validity was examined through exploratory factor analysis.

Results

Cronbach’s alpha coefficient has been found to be 0.82 for the anxiety subscale and 0.64 for the depression subscale, while overall alpha of the HADS/UV is 0.84. The Urdu version is content valid, and the S-CVI of anxiety subscale, depression subscale and HADS/UV are 0.947, 948 and 0.947, respectively. Test–retest reliability is 0.884 and 0.934 as measured by Pearson correlation and intraclass correlation, respectively. HADS/UV items correlated positively with the whole scale (p<0.001). Factor analysis with varimax rotation revealed that two factors explained 42.75% of the variance. Items’ distribution was quite similar to the original HADS.

Conclusion

The HADS/UV is a psychometrically sound instrument with satisfactory measurement, including good internal consistency. The instrument shows promise to be a sound tool to assess anxiety and depression in pregnancy.

Validation of the WHO Quality of Life assessment instrument (WHOQOL-100) in a population of Dutch adult psychiatric outpatients

Background

Research concerning the psychometric properties of the WHO Quality of Life Assessment Instrument (WHOQOL-100) in general populations of psychiatric outpatients has not been performed systematically.

Aims

To examine the content validity, construct validity, and reliability of the WHOQOL-100 in a general population of Dutch adult psychiatric outpatients.

Method

A total of 533 psychiatric outpatients entered the study (438 randomly selected, 85 internally referred). Participants completed self-administered questionnaires for measuring quality of life (WHOQOL-100), psychopathological symptoms (SCL-90), and perceived social support (PSSS). In addition, they underwent two semi-structured interviews in order to obtain Axis-I and Axis-II diagnoses, according to DSM-IV.

Results

The drop-out percentage was low (7.1%). Of the 24 facets of the WHOQOL-100, 22 had a good distribution of scores, leaving out the facets physical environment and transport. Exploratory factor analysis revealed a four-factor structure, which was similar to earlier findings in patients with specific somatic diseases and depressive disorders. Various—a priori expected—positive and negative correlations were found between facets and domains of the WHOQOL-100, and dimensions of the SCL-90 and the PSSS-score, indicating good construct validity of the WHOQOL-100. The internal consistency of all facets and the four domains of the WHOQOL-100 was good (Cronbach’s alpha’s ranging from 0.62 to 0.93 and 0.64 to 0.84, respectively). Sparse and relatively low correlations were found between demographic characteristics (age and sex) and WHOQOL-100 scores.

Conclusions

Content validity, construct validity, and reliability of the WHOQOL-100 in a population of adult Dutch psychiatric outpatients are good. The WHOQOL-100 appears to be a suitable instrument for measuring quality of life in adult psychiatric outpatients.

Discriminant Validity Assessment of Religious Teacher Acceptance: The Use of HTMT Criterion

This study was conducted to produce empirical evidence of validity and reliability of a set of questionnaire. Questionnaire drawn from the results of previous studies and the validity of the tests will determine whether all aspects of the construct domain were represented, thus ensuring the high objectivity level of the questionnaire. In addition, an alternative approach was used to assess the discriminant validity, using heterotrait-monotrait ratio of correlations. The study empirically proves that the questionnaire used is unchanged by culture. This is important because if not, its use will be restricted to a population in which the questionnaire was developed. The proposed method is better in which to enhance and improved the discriminant validity, using heterotrait-monotrait ratio of correlations. The results of the analysis in the measurement model indicated that the questionnaire meets the standards of reliability and construct validity.

Psychometric Properties of an Indian Translation of the Vision-related Activity Limitation Item Bank in Cataract

SIGNIFICANCE

The Indian translated and culturally adapted version of the vision-related activity limitation (VRAL) item bank is a validated instrument to assess the difficulty in performing daily activities by cataract patients and can also be used to capture self-reported changes in ability to perform daily activities after cataract surgery.

PURPOSE

The purpose of this study was to document (a) translation, cross-cultural adaptation of VRAL item bank into an Indian language, and (b) its validation using Rasch analysis in a South Indian cataract population.

METHODS

At the first stage, a translated Indian version of VRAL item bank was produced using recommended procedures. At the second stage, Rasch analysis was performed to investigate its psychometric properties in 787 cataract patients (mean age, 58.2 years; mean ± SD visual acuity [logMAR], 1.19 ± 0.96 at baseline in eye for surgery) including comparison with the original version.

RESULTS

Post-translation equivalence of meaning was achieved, but some English phrases required cross-cultural adaptation. Subsequently, all items were appropriate for the Indian culture, and VRAL item bank demonstrated excellent measurement precision (7.39). Dimensionality assessment suggested that VRAL construct may contain other dimensions such as self-care and visual search, and mobility. Self-care and visual search formed a unidimensional measure but was highly correlated with main VRAL dimension, and the removal of its items weakened precision of the main VRAL dimension measurement. Taken together, evidence favored retaining self-care and visual search items in a larger VRAL item bank. Mobility subscale lacked adequate measurement precision, so it was not examined further; again, items were retained in VRAL scale because they strengthened its measurement properties. Majority of items (99%) did not demonstrate notable differential item functioning (>1.0 logit) by presenting visual acuity (median, 0.20 logMAR) in the better-seeing eye.

CONCLUSIONS

Items in the translated Indian VRAL item bank measure the same construct as the English version and fulfilled the psychometric requirements for use in cataract patients.

Predictive Validity of Each Item of the 8-Item Short-Form Health Survey for All-Cause Mortality in Japanese patients with type 2 diabetes: A prospective Cohort Study (Diabetes Distress and Care Registry at Tenri [DDCRT 19])

AIMS

While health-related quality of life (HRQOL) is reported to be associated with mortality, this assessment was made using surveys with a large number of questions, not specifically focused on populations with diabetes, or in western countries alone. We thus evaluated the predictive validity of summary scores, and each item score of the 8-Item Short-Form Health Survey in Japanese individuals with type-2 diabetes.

MATERIALS AND METHODS

Longitudinal data from 3269 individuals with diabetes were obtained from a large Japanese diabetes registry. To assess the independent correlation between the 10-point scores of the SF-8 physical component summary (PCS) and mental component summary (MCS), each item score, and all-cause mortality, the Cox proportional hazards model was used with adjustment for potential confounders.

RESULTS

Mean cohort parameters included age (64.9 years [SD 11.2]), body mass index (24.6 kg/m² [SD, 3.9]), and HbA1c level (7.5% [SD, 1.2]; or 58.6 mmol/mol [SD, 12.7]). We recorded 248 deaths during the median follow-up of 7.2 years (incidence ratio, 12.2 per 1000 person-years). Multivariable-adjusted HRs for all-cause mortality were 0.780 (95%CI, 0.674-0.902; p=0.001) and 0.776 (95%CI, 0.656-0.917; p=0.003), respectively, for 10-point increment of PCS and MCS scores. Higher score of any single item of SF-8 was associated with lower risk of all-cause mortality even after adjusting for possible confounders.

CONCLUSIONS

As assessed by the SF-8, higher PCS, MCS, and any single 1-item scores were associated with lower risk of all-cause mortality in Japanese individuals with type 2 diabetes.

Reliability and Validity of the Greek Version of the Iowa Infant Feeding Attitude Scale Among Pregnant Women

Introduction:

A modifiable factor related to breastfeeding is breastfeeding attitudes. The Iowa Infant Feeding Attitude Scale (IIFAS) is used to evaluate this factor. Although the breastfeeding rates in Greece are declined there is not available any validated instrument to evaluate infant feeding attitudes.

Aim:

to determine the psychometric properties of the Greek adaptation of the IIFAS in a sample of pregnant women.

Materials and Methods:

Pregnant women (N=203) from a University Hospital in Athens, Greece, were administered the Greek version of the IIFAS, while being in hospital, and their infant feeding mode at six months postpartum was recorded by telephone. The reliability of the scale was assessed by using corrected item-total correlations and Cronbach’s alpha. Construct validity of the scale was assessed by using confirmatory factor analysis and predictive validity by using t-tests. Multiple linear regression analyses in a stepwise method (p for removal was set at 0.1 and p for entry was set at .05) was performed in order to find variables independently associated with IIFAS total score.

Results:

The mean IIFAS score was 70.0 (SD=7.6). The corrected item-total correlation ranged from 0.22 to 0.51. Cronbach’s alpha was equal to 0.71. The confirmatory factor analysis indicated an adequate fit of the one-factor model. Concerning the predictive validity of IIFAS it was significant for breastfeeding at six months. The mean IIFAS score was significantly greater (p=0.001) for women that had exclusive breastfeeding at six months (mean (SD): 68.4(6.6)) as compared with those that did not (mean (SD): 64.0(7.5)). Higher IIFAS scores were found in older women, with higher educational level and in those that had breastfed children in their social environment.

Conclusion:

The Greek version of the IIFAS demonstrated satisfying reliability and validity for measuring women’s infant feeding attitudes in the Greek context. Also, the results of the present study provide further evidence of the international applicability of the IIFAS.

Quality of life and objective functional impairment in lumbar spinal stenosis: a protocol for a systematic review and meta-analysis of moderators

BACKGROUND

Lumbar spinal stenosis (LSS) is a common degenerative spine disease associated with a strong impairment in various quality of life areas, particularly the ability to perform work-related activity. Depression is a condition frequently associated. There is no comprehensive review on quality of life and objective functional impairment in LSS. This paper presents the protocol of the first systematic review and meta-analysis summarising evidence about quality of life and functional impairment in patients with LSS compared with healthy controls. Comorbid depressive disorders, age, gender, LSS duration, disability, pain severity and study methodological quality will be investigated as moderators.

METHODS

The protocol is reported according to PRISMA-P guidelines. Studies will be included if they were conducted on patients aged 18 years old or older with primary LSS and if they reported data on differences in the levels of quality of life or objective functional impairment between patients with LSS and healthy controls. Independent reviewers will search published/unpublished studies through electronic databases and additional sources, will extract the data and assess the methodological quality. Random-effects meta-analysis will be carried out by calculating effect sizes as Cohen's d indices. Heterogeneity will be examined by the I² and the Q statistics. Moderators will be investigated through meta-regression.

CONCLUSIONS

A summary of the evidence on quality of life and functional impairment in LSS may suggest clinical and occupational health medicine strategies aimed to timely detect and prevent these outcomes. Higher percentages of patients with LSS with depression may be expected to be related to poorer quality of life. Depressive comorbidity might impact negatively on quality of life because it is associated with dysfunctional coping, disability and psychophysiological symptoms.

ETHICS AND DISSEMINATION

The current review does not require ethics approval. The results will be disseminated through publications in peer-reviewed journals.

REVIEW REGISTRATION

CRD42019132209.

A quality of life questionnaire for adolescents with cerebral palsy: psychometric properties of the Bengali CPQoL-teens

BACKGROUND

Quality of life (QoL) and health-related quality of life (HRQoL) measurement in low and middle-income countries of people with cerebral palsy (CP), the major cause of childhood physical disability, is essential to assess the impact of interventions and inform policies that best improve people's lives. The purpose of this study was to cross-culturally translate and psychometrically validate the Cerebral Palsy Quality of Life-Teens (CPQoL-Teens) self- and proxy-report questionnaires for application with adolescents with CP in Bangladesh.

METHOD

The CPQoL-Teens questionnaires were translated to Bengali using forward and backwards cross-cultural translation protocols. The questionnaires were interviewer administered to adolescents and their primary caregivers, identified through the Bangladesh Cerebral Palsy Register. Feasibility, sensitivity, internal consistency, content, concurrent and construct validity were assessed.

RESULTS

One hundred fifty four adolescents with CP (10 to 18y; mean 15y 1mo SD 1y 8mo; 31.2% female) participated. Feasibility, sensitivity and internal consistency of both self- and proxy-report questionnaires was excellent; nil missing scores except 'school wellbeing' which was associated with non-school attendance (48.4 to 74.7%); floor and ceiling effect ≤13.6%; Cronbach's alpha 0.77 to 0.94. Instrument validity was good; confirmatory factor analysis reflected five of the seven original instrument dimensions. CPQoL-Teens correlated to Kidscreen-27 on most dimensions (r = 0.176 to 0.693, p < 0.05); minimal difference in known groups was observed by mental health status (p < 0.05) although could be accounted for by homogeneity of mental health problems in the sample.

CONCLUSION

The CPQoL-Teens self- and proxy report questionnaires successfully translated to Bengali and showed excellent feasibility and strong psychometric properties confirming suitability to assess indicators of HRQoL among adolescents with CP in Bangladesh.

Validation of the Indonesian version of the Safety Attitudes Questionnaire: A Rasch analysis

Introduction

Safety climate, which provides a snapshot of safety culture, is rarely measured in Indonesian healthcare organisations because there are no validated surveys that can be administered in its native language, Bahasa Indonesia. The objectives of this study were to translate and linguistically adapt the Safety Attitudes Questionnaire into Bahasa Indonesia, and investigate the internal construct validity and reliability of the translated survey.

Methods

The Safety Attitudes Questionnaire was translated into Indonesian language through forward and backward translation. The internal construct validity and reliability of the translated survey was assessed using Rasch analysis which examines overall model fit, unidimensionality, response format, targeting, internal consistency reliability and item bias.

Results

A total of 279 nurses (response rate 82%) completed the Indonesian version of the Safety Attitudes Questionnaire. Most respondents were Division 2 registered nurses (n = 209; 75%), female (n = 174; 62%), and aged less than 30 years (n = 187; 67%). All six domains of the Indonesian version of the Safety Attitudes Questionnaire demonstrated unidimensionality (t-test less than 0.05 threshold value). However, suboptimal targeting (ceiling effect) was observed in all domains, and had at least one misfitting item (item fit residual beyond ±2.5) Item bias was also evident in most domains.

Conclusion

This study has translated and validated an Indonesian version of the Safety Attitudes Questionnaire for the first time. Whilst there was general support to sum items to obtain domain scores, further work is required to refine the response options as well as the wording and number of items in this survey to improve its overall measurement properties.

Cross-cultural validation of the Bengali version KIDSCREEN-27 quality of life questionnaire

Background

Measuring the health-related quality of life (HRQoL) of adolescents, including those with cerebral palsy (CP) (the major cause of childhood physical disability worldwide) in Bangladesh is pertinent although there is a dearth of validated instruments for assessing this concept. For application in a case-control study comparing HRQoL between adolescents with CP and peers without disability in Bangladesh (a typical low- and middle-income country) we cross-culturally translated and psychometrically tested KIDSCREEN-27.

Methods

KIDSCREEN-27 was translated to Bengali using forward and backwards translation protocol and interviewer administered to adolescents with CP and their age and sex matched peers without disability. Primary caregivers were included for proxy-report. Sociodeomgraphic characterists and clinical information were extracted from the Bangladesh Cerebral Palsy Register (BCPR) and adolescent mental health was assessed using the Bengali version Strenghts and Difficulties Questionnaire (SDQ). Feasibility, floor and ceiling effect, internal consistency, content and construct validity of KIDSCREEN-27 were tested.

Results

Feasibility, floor and ceiling effect and internal consistency of KIDSCREEN-27 was good for both self- and proxy-report questionnaires; nil missing scores except ‘school environment’ (11.0% to 74.7%) which correlated to rates of non-school attendance; floor and ceiling effect ≤10.4% except ‘peers and social support’ 23.4%; Cronbach’s alpha 0.67 to 0.91. Instrument validity was strong; factor analysis reflected original instrument dimensions within one to three factors and difference in known groups was observed by CP and adolescent mental health (p < 0.05).

Conclusion

KIDSCREEN-27 successfully translated to Bengali and both the self and proxy-report questionnaires showed good psychometric properties indicating suitability for case-control assessment of HRQoL between adolescents with CP and peers without disability in Bangladesh.

Electronic supplementary material

The online version of this article (10.1186/s12887-018-1373-7) contains supplementary material, which is available to authorized users.

Depression and quality of life in adults perceiving exposure to parental alienation behaviors

Background

The current study is aimed at examining the relationship between exposure to parental alienation (PA) behaviors, depression, and health-related quality of life (HRQoL) in Italian adults.

Methods

Four hundred ninety-one adults were tested. Participants filled out the following self-rating scales: The Baker Strategy Questionnaire (BSQ), the Beck Depression Inventory – II (BDI-II) and its brief version (6-item version of the BDI-II), the Short-Form 36 (SF-36) Health Survey for measuring HRQoL and its brief version including 3 items (WHO-3) of the 5-item World Health Organization Well-Being Index.

Results

Findings revealed statistically significant differences between participants who reported PA and those who did not. Participants who reported exposure to PA behaviors had higher scores on the original BDI-II and its 6-item version (p < 0.05, p < 0.01, respectively); they had also lower levels of HRQoL as resulting from 6 of the 8 SF-36 domains (at least p < 0.05), including lower scores on the WHO-3 (p < 0.01). Perceiving an exposure to PA behaviors significantly increased the likelihood of being above the clinical cut-off on the BDI-II (p < 0.01), the 6-item version of the BDI-II (p < 0.05), and the WHO-3 (p < 0.05). Moreover, perceiving an exposure to PA increased the odds of diminished HRQoL (OR = 2.43 and OR = 1.92 for general health and social functioning domains, respectively).

Conclusions

Childhood exposure to PA was related to higher likelihood of depressive symptoms and diminished HRQoL in adulthood. Our findings suggest the need for preventive and clinical interventions to protect vulnerable children involved in PA from negative outcomes.

Effects of An Occupational Therapy Memory Strategy Education Group Intervention on Irish Older Adults' Self-Management of Everyday Memory Difficulties

An occupational therapy memory strategy education group (MSEG) was developed to assist clients with varying levels of memory impairment to adopt strategies to manage memory impairment in their daily lives. Participants were healthy older adults presenting with subjective memory complaints (SMC, n = 14), mild cognitive impairment (MCI, n = 33), or early stages of dementia (n = 13). Clients and their caregivers attended a one-hour session each week for six weeks. Outcome measures were taken at baseline, two weeks post completion of the group, and at a 3-month follow-up for 47 participants. Statistically significant improvements post-program were scored on the Rivermead Behavioural Memory Test (p = 0.001) and a dementia quality of life measure (p = 0.02), with increased use of external memory aids (p < 0.001) and significant improvements in participants' self-ratings of performance (p < 0.001) and satisfaction with their performance (p < 0.001) using the Canadian Occupational Performance Measure. Findings suggest positive outcomes that were maintained at 3-month follow-up and thus, support the role of occupational therapy in delivering occupation-focused memory strategy programs.

Development and construct validation of a parent-proxy quality of life instrument in children with bronchopulmonary dysplasia aged 4-8 years old

Purpose

Children with bronchopulmonary dysplasia often develop complications that affect them well into adult life. Very little is known about how this affects their quality of life, since no sensitive instrument is available to measure health-related quality of life in this population. In this study, a Dutch parent-proxy instrument was developed for this purpose.

Methods

A list of items was generated after literature search and interviews with both parents of patients and clinical experts. Clinically relevant items were selected with the clinical impact method and item analysis. Results of clinical tests to measure complications in children with bronchopulmonary dysplasia were correlated with these items to select the items that show construct validity. Cronbach’s alpha was calculated to estimate internal consistency of the items in the final questionnaire.

Results

In total, 92 children and their parents and 7 clinicians participated. Of 130 identified items, 47 showed clinical relevance. Spirometry, the Child Behavior Checklist, mean arterial pressure, and body mass index were used to determine construct validity of 33 items. These items were structured within five domains: pulmonary complaints, school functioning, growth and nutrition, exercise and locomotion, emotional functioning and health care concerns. The questionnaire showed excellent internal consistency with Cronbach’s alpha of 0.919.

Conclusion

This study developed a disease-specific parent-proxy instrument to measure health-related quality of life in children with bronchopulmonary dysplasia aged 4–8 years old, the BPD-QoL. All included items show construct validity and internal consistency reliability. Future research should focus on further validation and analysis of responsiveness and reliability.

Electronic supplementary material

The online version of this article (10.1007/s11136-018-2029-7) contains supplementary material, which is available to authorized users.

Psychometric properties of the World Health Organization Quality of Life Instrument-Abbreviated version in Portuguese-speaking adults from three different countries

OBJECTIVE

To evaluate the validity, reliability and invariance of the World Health Organization Quality of Life Instrument-Abbreviated version (WHOQOL-Bref) in Portuguese-speaking adults from three different countries.

METHODS

A total of 4,020 Brazilian, Portuguese, and Mozambican individuals participated in the study. The total sample was divided into four samples: Brazilian patients (n = 1,120), Brazilian students (n = 1,398), Portuguese students (n = 1,165) and Mozambican students (n = 337). Factorial validity of the WHOQOL-Bref was assessed by confirmatory factor analysis. The convergent and discriminant validities of the instrument were assessed using the average variance extracted (AVE) and the square of Pearson's correlational coefficient (r2), respectively. Composite reliability and ordinal alpha were used as measures of reliability. The metric, scalar, and strict invariance of WHOQOL-Bref was evaluated by multi-group analysis in independent subsamples (within each sample) and only between Brazil and Portugal (transnational invariance), because the configural model of Mozambique was different.

RESULTS

The original model of the WHOQOL-Bref did not show a good fit for the samples. Different items were excluded to fit the instrument in each sample (different models for WHOQOL-Bref among Brazilian, Portuguese, and Mozambican samples). AVE and r2 were not adequate; however, the reliability of the WHOQOL-Bref was good, except in the Mozambican sample. Invariance was observed only in independent subsamples.

CONCLUSION

The WHOQOL-Bref fitted models showed adequate factorial validity and invariance in independent subsamples. The transnational non-invariance of the WHOQOL-Bref shows the influence of culture on the operationalization of the quality of life construct.

Insight into Patients' Experiences of Cancer Care in Taiwan: An Instrument Translation and Cross-Cultural Adaptation Study

Background: Since Taiwan launched the Cancer Prevention Act in 2003, several prevention strategies and early detection programs have been implemented to reduce the incidence, morbidity and mortality rates of cancer. However, most of the programs have concentrated on healthcare providers. Evaluations from the patient’s perspective have been lacking. Thus, in this study a cancer patient experience questionnaire was developed in the Taiwanese context and a preliminary nationwide investigation was conducted on the status of cancer care from the patient’s perspective. Methods: An extensive literature review was first conducted to collect information on the existing instruments used to measure the cancer patient’s experience. Thereafter, a multidisciplinary expert panel was convened to select an optimal instrument based on the IOM’s six domains for evaluating patient-centered care. The European Organisation for Research and Treatment of Cancer (EORTC) translation procedure was applied to the questionnaire for cross-cultural adaptation. A nationwide field test was then implemented at certificated cancer care hospitals. Results: Fifteen questionnaires were collected for the literature review. The expert panel selected the National Cancer Patient Experience Survey based on the IOM’s recommendations. After cross-cultural translation of the questionnaire, a total of 4000 questionnaires were administered in 19 certificated cancer care hospitals and two major cancer patient associations, with 1010 being returned (25.25% response rate). Most of the respondents were middle-aged, and 70% were female. The respondents reported they had a good experience with cancer care, except for “Home care and support” and “Finding out what was wrong with you”. Stratified analysis was conducted, with the results showing that the cancer patients’ experiences varied depending on their sociodemographic and cancer-related characteristics. Conclusions: A Taiwanese version of the cancer patient experience survey questionnaire was developed. Its results showed that the cancer patient’s experiences varied, depending on the patient’s age, cancer type, and cancer history. This study can be used as a basis to establish a patient-centered care model for cancer care in Taiwan.

Translation, validation, and cross-cultural adaption of the Western Ontario Meniscal Evaluation Tool (WOMET) into German

PURPOSE

The Western Ontario Meniscal Evaluation Tool (WOMET) was developed in order to investigate the health-related quality of life of patients with meniscal pathologies. The aim of the present study was to translate and validate the WOMET into German.

METHODS

A standardized forward backward translation of the WOMET into German was first performed. One hundred ninety-two patients with isolated meniscal tears completed the German version of the WOMET as well as the Western Ontario McMasters University Arthritis Index, and the Knee Osteoarthritis Outcome Score. Furthermore, reliability, construct validity, feasibility, internal consistency, ceiling, and floor effects were then calculated.

RESULTS

Excellent feasibility (85.4% fully complete questionnaire), internal consistency (Cronbach's α = 0.92), and test-retest reliability (ICC, r = 0.90) were found. The standard error of measurement and the minimal detectable change were ±4.6 and 12.7 points, respectively. All predefined hypothesises were confirmed. No floor or ceiling effects were found.

CONCLUSIONS

The presented German version of the WOMET is a valid and reliable tool for investigating the health-related quality of life of German-speaking patients with meniscal pathologies.

LEVEL OF EVIDENCE

Cross-sectional study, Level II.

The Uganda version of the Pediatric Evaluation of Disability Inventory (PEDI). Part I: Cross-cultural adaptation

BACKGROUND

The Pediatric Evaluation of Disability Inventory (PEDI) was developed and standardized to measure functional performance in American children. So far, no published study has examined the use of the PEDI in sub-Saharan Africa. This study describes the adaptation, translation, and validation process undertaken to develop a culturally relevant PEDI for Uganda (PEDI-UG).

METHOD

The cross-cultural adaptation and translation of the PEDI was performed in a series of steps. A project manager and a technical advisory group were involved in all steps of adaptation, translation, cognitive debriefing, and revision. Translation and back-translation between English and Luganda were performed by professional translators. Cognitive debriefing of two subsequent adapted revisions was performed by a field-testing team on a total of 75 caregivers of children aged 6 months to 7.5 years.

RESULTS

The PEDI-UG was established in both English (the official language) and Luganda (a local language) and comprises 185 items. Revisions entailed deleting irrelevant items, modifying wording, inserting new items, and incorporating local examples while retaining the meaning of the original PEDI. Item statements were rephrased as questions. Seven new items were inserted and 19 items deleted. To accommodate major differences in living conditions between rural and urban areas, 10 alternative items were provided.

CONCLUSIONS

The PEDI-UG is to be used to measure functional limitations in both clinical practice and research, in order to assess and evaluate rehabilitative procedures in children with developmental delay and disability in Uganda. In this study, we take the first step by translating and adapting the original PEDI version to the culture and life conditions in both rural and urban Uganda. In subsequent studies, the tool's psychometric properties will be examined, and the tool will be tested in children with developmental delay and disability.

Item distribution and inter-rater reliability of the German version of the quality of life in Alzheimer's disease scale (QoL-AD) proxy for people with dementia living in nursing homes

Background

The Quality of Life in Alzheimer’s disease scale (QoL-AD) is a widely used Health Related Quality of Life (HRQoL) instrument. However, studies investigating the instrument’s inter-rater reliability (IRR) are missing. This study aimed to determine the item distribution and IRR of the German proxy version of the QoL-AD (13 Items) and a nursing home-specific instrument version (QoL-AD NH, 15 Items).

Methods

The instruments were applied to 73 people with dementia living in eight nursing homes in Germany. Individuals with dementia were assessed two times by blinded proxy raters. The IRR analyses were based on methodological criteria of the quality appraisal tool for studies of diagnostic reliability (QAREL), the COSMIN group and the single-measure Intra-Class Correlation Coefficient (ICC) for absolute agreement ≥0.70.

Results

All items for both instrument versions demonstrated acceptable item difficulty, with the exception of one item (QoL-AD proxy). The IRR was moderate for the QoL-AD (ICC: 0.65) and insufficient for the QoL-AD NH (ICC: 0.18). The additional computation of the average measure ICC for two proxy-raters demonstrated a strong IRR (ICC: 0.79) for the QoL-AD and a weak IRR for the QoL-AD NH (ICC: 0.31). The detailed analysis of the IRR for each item underpinned the need for the further development of both instruments.

Conclusions

The unsatisfactory IRRs for both instruments highlight the need for the development of a user guide including general instructions for instrument application as well as definitions and examples reflecting item meaning. Priority should be given to the development of reliable proxy-person versions of both instruments.

Trial registration

ClinicalTrials.gov: NCT02295462, Date of registration: 11–20-2014.

Acute Intermittent Porphyria in the North of China: The Acute Attack Effect on Quality of Life and Psychological Condition

Background

Acute intermittent porphyria (AIP) is an autosomal recessive disorder with intermittent attacks. Patients with AIP are susceptible to impaired quality of life and psychological distress.

Objectives

To document the clinical features of AIP and its impact on SF-36 and IES scores of AIP patients in China and to explore the variables associated with SF-36 and IES scores.

Methods

A single investigator collated data related to treatments and outcomes in 27 patients with AIP of PUMCH. A cross-sectional questionnaire survey including the SF-36, the IES-R, and demographic questions was conducted in the north of China. Differences in the QoL scale/summary scores and proportions in the QoL dimensions between patients and the general population were analyzed. Independent effects of chronic conditions and demographic variables on the SF-36 and IES-R were analyzed.

Results

AIP patients had considerably lower SF-36 scores than the general population (the PF score and MH were lower than normal, P < 0.05). Working had higher RP than staying at home (P = 0.02); “without acute attack” had higher PF and BP scores and PCS composite score (P = 0.001). The mean IES-R score of AIP was higher than normal (36.7 ± 11.8 points, P < 0.001), “without acute attack” had lower intrusion score than “with acute attack” (P = 0.03).

Conclusion

AIP patients in China had impaired quality of life, especially in terms of physical health. The acute attacks coursed the posttraumatic stress disorder-related symptoms.

Emerging good practices for Translatability Assessment (TA) of Patient-Reported Outcome (PRO) measures

This paper presents emerging Good Practices for Translatability Assessment (TA) of Patient-Reported Outcome (PRO) Measures. The ISOQOL Translation and Cultural Adaptation Special Interest Group (TCA-SIG) undertook the review of several TA approaches, with the collaboration of organizations who are involved in conducting TA, and members of the TCA-SIG. The effort led to agreement by the writing group on Good Practices for 1) the terminology to be used in referring to translatability process, 2) the best definition of TA, 3) the methodology that is recommended at each step of the process, 4) the persons involved in TA, 5) the timing of assessment, 6) the review criteria for TA, and 7) the recommendations to be made at the end of the TA process. With input from the TCA-SIG membership and in consultation with experts in the field, these emerging good practices can guide the future use of TA in the development of PROs.