Test-retest reliability for HAQ-DI and SF-36 PF for the measurement of physical function in psoriatic arthritis

Objective Due to no existing data, we aimed to derive evidence to support test-retest reliability for the Health Assessment Questionnaire-Disability Index (HAQ-DI) and Medical Outcome Survey Short-Form-36 item physical functioning domain (SF-36 PF) in psoriatic arthritis (PsA). Methods We identified datasets that collected relevant data for test-retest reliability for HAQ-DI and SF-36 PF; and evaluated them using OMERACT Filter 2.1 methodology. We calculated intra-class correlation coefficients (ICC) as a measure of test-retest reliability. We then conducted a quality assessment and evaluated the adequacy of test-retest reliability performance. Results Two datasets were identified for HAQ-DI and one for SF-36 PF in PsA. The quality of the datasets was good. The ICCs for HAQ-DI were excellent in both datasets: 0.94 (95% CI: 0.88 to 0.97) and 0.94 (95% CI: 0.89 to 0.97). The ICC of SF-36 PF was good (0.89, 95% CI: 0.76 to 0.95). The performance of test-retest reliability for both instruments was judged to be adequate. Conclusion The new data derived support good and reasonable test-retest reliability for HAQ-DI and SF-36 PF in PsA.

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Measuring physical function in psoriatic arthritis: comparing the Multi-Dimensional Health Assessment Questionnaire to the Health Assessment Questionnaire Disability Index

The Journal of Rheumatology ◽

10.3899/jrheum.200927 ◽

2021 ◽

pp. jrheum.200927

Author(s):

Weiyu Ye ◽

Simon Hackett ◽

Claire Vandevelde ◽

Sarah Twigg ◽

Philip S. Helliwell ◽

...

Keyword(s):

Psoriatic Arthritis ◽

Physical Function ◽

Health Assessment Questionnaire ◽

Health Assessment ◽

Clinic Visit ◽

Retest Reliability ◽

Floor Effects ◽

Test Retest Reliability ◽

Assessment Questionnaire ◽

Questionnaire Disability

Objective To compare physical function scales of the Multi-Dimensional Health Assessment Questionnaire (MDHAQ) to the Health Assessment Questionnaire Disability Index (HAQDI) in patients with psoriatic arthritis (PsA), and examine whether either questionnaire is less prone to ‘floor effects’. Methods Data were collected prospectively from 2018 to 2019 across three UK hospitals. All patients completed physical function scales within the MDHAQ and HAQDI in a single clinic visit. Agreement was assessed using medians and the Bland-Altman method. Intraclass correlation coefficients (ICCs) were used to assess test-retest reliability. Results 210 patients completed the clinic visit; one withdrew consent thus 209 were analysed. 60.0% were male, with mean age of 51.7 years and median disease duration of 7 years. In clinic, median MDHAQ and HAQDI including/excluding aids scores were 0.30, 0.50 and 0.50 respectively. Although the median score for HAQDI is higher than MDHAQ, the difference between the two mostly lies within 1.96 standard deviations from the mean suggesting good agreement. The ICCs demonstrated excellent test-retest reliability for both HAQ questionnaires.Similar numbers of patients scored ‘0’ on the MDHAQ and HAQDI including/excluding aids (48, 47, and 49 respectively). Using a score of ≤0.5 as a cut-off for minor functional impairment, 23 patients had a MDHAQ ≤0.5 when their HAQDI including aids >0.5. Conversely, 4 patients had a MDHAQ > 0.5 when the HAQDI including aids ≤0.5. ConclusionBoth HAQ questionnaires appear to be similar in detecting floor effects in patients with PsA.

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Test–retest reliability of the Swedish version of the Orthotics and Prosthetics Users’ Survey

Prosthetics and Orthotics International ◽

10.1177/0309364613485113 ◽

2013 ◽

Vol 38 (1) ◽

pp. 21-26 ◽

Cited By ~ 16

Author(s):

Gustav Jarl ◽

Marie Holmefur ◽

Liselotte MN Hermansson

Keyword(s):

Quality Of Life ◽

Functional Status ◽

Client Satisfaction ◽

Correlation Coefficients ◽

Health Related Quality ◽

Retest Reliability ◽

Related Quality ◽

Health Related ◽

Test Retest Reliability

Background:The Orthotics and Prosthetics Users’ Survey consists of five modules to assess outcomes of orthotic and prosthetic interventions: lower extremity functional status, upper extremity functional status, client satisfaction with device, client satisfaction with services and health-related quality of life.Objectives:To investigate the test–retest reliability and calculate the smallest detectable difference for all modules of the Swedish Orthotics and Prosthetics Users’ Survey.Study design:Test–retest reliability study design.Methods:A total of 69 patients at a Department of Prosthetics and Orthotics completed Orthotics and Prosthetics Users’ Survey on two occasions separated by a 2-week interval, giving 18 answers on lower extremity functional status, 41 on upper extremity functional status, 53 on client satisfaction with device, 12 on client satisfaction with services and 67 answers on health-related quality of life. Raw scores were converted into Orthotics and Prosthetics Users’ Survey units on a 0–100 scale. Intra-class correlation coefficients, Bland–Altman plots, common person linking plots and t-tests of person mean measures were used to investigate the reliability. The 95% confidence level smallest detectable differences were calculated.Results:The intra-class correlation coefficients ranged from 0.77 to 0.96 for the modules, and no systematic differences were detected between the response occasions. The smallest detectable differences ranged from 7.4 to 16.6 units.Conclusions:The test–retest reliability was satisfactory for all Orthotics and Prosthetics Users’ Survey modules. The smallest detectable difference was large on all modules except the health-related quality of life module.Clinical relevanceThe Orthotics and Prosthetics Users’ Survey modules are reliable and, thus, can be recommended for repeated measurements of patients over time. Relatively large changes are needed to achieve statistical significance when assessing individual patients.

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Quality of life assessment: validation of the Italian version of the WHOQOL-Brief

Epidemiologia e Psichiatria Sociale ◽

10.1017/s1121189x00007740 ◽

2000 ◽

Vol 9 (1) ◽

pp. 45-55 ◽

Cited By ~ 74

Author(s):

Giovanni De Girolamo ◽

Paola Rucci ◽

Paolo Scocco ◽

Angela Becchi ◽

Francesco Coppa ◽

...

Keyword(s):

Social Relationships ◽

Concurrent Validity ◽

Physical Domain ◽

Italian Version ◽

Retest Reliability ◽

Sf 36 ◽

Environment Domain ◽

Study Test ◽

Test Retest Reliability

SummaryObjective – To test the psychometric properties of the Italian version of the WHOQOL-BRIEF (e.g., construct and internal validity, concorrent validity with the MOS SF-36 and test-retest reliability). The WHOQOL-BRIEF is a 26-items self-report instrument which assesses four domains assumed to represent the Quality Of Life (QOL) construct: physical domain, psychological domain, social relationships domain and environment domain, plus two facets for assessing overall QOL and general health. Methods – Data have been collected in three sites (Bologna, Modena and Padua), located in the North of Italy, in the framework of the international WHOQOL project. According to the study design, the sample had to include about 50% males and 50% females, 50% of subjects below and 50% above the age of 45, all in contact with various health services. A subsample has been re-interviewed after 2-3 weeks in order to study test-retest reliability. After the WHOQOL-BRIEF, most subjects have also been administered the MOS-SF36 in order to test the concurrent validity between these two instruments. Results – The instrument was administered to 379 subjects (1/6 healthy and 1/6 sick), chosen to be representative of a variety of different medical conditions. Seventy patients, wTio displayed stable health conditions, have been reassessed after 2-3 weeks to study test-retest reliability. The WHOQOL-BRIEF domains has shown good internal consistency, ranging from 0.65 for the social relationships domain to 0.80 for the physical domain; it has been able to discriminate between in- and out-patients and between the two age groups considered in the present study (<45, ≥45 years). Only physical and psychological domains were found to discriminate between healthy and ill subjects. No gender differences in the mean scores for the four domains were found. Concurrent validity between the WHOQOL-Brief and the MOS-SF-36 was satisfactory, and specific for the physical and psychological health domains. Test-retest reliability values were also good, ranging from 0.76 for the environment domain to 0.93 for the psychological domain. Conclusions – This study shows that the WHOQOL-BRIEF is psychometrically valid and reliable, and that it is also potentially useful in discriminating between subjects with different health conditions in clinical settings.

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Validation of Persian Individualized Neuromuscular Quality of Life in patients with muscular dystrophies

Iranian Journal of Neurology ◽

10.18502/ijnl.v19i1.3284 ◽

2020 ◽

Author(s):

Kamyar Moradi ◽

Shirin Jamal-Omidi ◽

Maryam Masoudi1 ◽

Sayna Bagheri ◽

Shahriar Nafissi ◽

...

Keyword(s):

Quality Of Life ◽

Internal Consistency ◽

Short Form ◽

Neuromuscular Disorders ◽

Validity And Reliability ◽

Persian Version ◽

Group Validity ◽

Sf 36 ◽

Test Retest Reliability

Background: Neuromuscular disorders affect physical and mental aspects of a patient and in other words alter the patients’ quality of life (QOL). In the present study, we investigated the validity and reliability of the Persian version of Individualized Neuromuscular QOL (INQOL) to provide a better insight into patients’ QOL. Methods: Original version of the INQOL was translated backward and then forward. The resultant Persian version and a standard questionnaire, 36-Item Short Form Health Survey (SF-36), were then given to 83 participants with neuromuscular disorders. Internal consistency, known-group validity, concurrent validity, and test-retest reliability were assessed. Results: The scores of matched sections for QOL in the two questionnaires were favorably correlated (P < 0.05). Correlation between test and retest scores was also significant (P < 0.05). Moreover, the Cronbach’s alpha of 0.82 was representative of robust internal consistency between INQOL covering sections. Conclusion: The Persian version of the INQOL can be used in clinical and research practice to detect changes in QOL which are related to neuromuscular disorders, due to its favorably reliable and valid characteristics.

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Validation of the Iranian Version of the ECOS-16 Questionnaire in Patients with Osteoporotic Vertebral Fractures

Asian Spine Journal ◽

10.4184/asj.2017.11.4.586 ◽

2017 ◽

Vol 11 (4) ◽

pp. 586-593

Author(s):

Parisa Azimi ◽

Taravat Yazdanian ◽

Ali Montazeri

Keyword(s):

Quality Of Life ◽

Psychometric Properties ◽

Vertebral Fractures ◽

World Health ◽

Life Questionnaire ◽

Retest Reliability ◽

Osteoporotic Vertebral Fractures ◽

Sf 36 ◽

Test Retest Reliability

<sec><title>Study Design</title>Prospective clinical study.</sec><sec><title>Purpose</title>To translate and validate the Quality of Life Questionnaire of the European Foundation for Osteoporosis (ECOS-16) in patients with osteoporotic vertebral fractures in Iran.</sec><sec><title>Overview of Literature</title>It is important to assess the psychometric properties of instruments measuring patient-reported outcomes.</sec><sec><title>Methods</title>The translation was performed using the backward-forward translation method. The final version was generated by consensus among the translators. Every woman who had a T-score of <−2.5 completed ECOS-16. Patients were divided into two study groups according to the World Health Organization's criteria: those with at least one vertebral fracture (surgery group) and those with no fractures (control group). They were asked to respond to the questionnaire at three points in time: preoperative and twice within 1-week interval after surgery assessments (6-month follow-up). The 36-item short-form health survey (SF-36) also was completed. The psychometric properties of the questionnaire were assessed using internal consistency, test-retest reliability, convergent validity, discriminant validity, and responsiveness.</sec><sec><title>Results</title>Of 137 recruited women, 39 underwent surgery and 98 did not. Analysis of the ECOS-16 scales showed an appropriate reliability with Cronbach's alpha of >0.70 for all scales. Test-retest reliability as indicated by intraclass correlation coefficient was found to be 0.85 (0.68–0.91). Additionally, the correlation of each item with its hypothesized domain of the ECOS-16 showed acceptable results, suggesting that the items had a substantial relationship with their own domains. Further analysis also indicated that the questionnaire was responsive to change (effect size, 0.85; standardized response mean, 0.93) (<italic>p</italic><0.001). Significant correlations existed between scores of similar subscales of ECOS-16 and SF-36 (<italic>p</italic><0.001).</sec><sec><title>Conclusions</title>ECOS-16 is an acceptable, reliable, valid, and responsive measure to assess the quality of life in patients with osteoporotic vertebral fractures.</sec>

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Psychometric Assessment of the Paternal Breastfeeding Self-Efficacy Scale-Short Form: A Confirmatory Factor Analysis of Malawian Fathers

Journal of Human Lactation ◽

10.1177/08903344211065036 ◽

2021 ◽

pp. 089033442110650

Author(s):

Roselyn Chipojola ◽

Cindy-Lee Dennis ◽

Shu-Yu Kuo

Keyword(s):

Factor Analysis ◽

Confirmatory Factor Analysis ◽

Self Efficacy ◽

Convergent Validity ◽

Short Form ◽

Internal Consistency Reliability ◽

Retest Reliability ◽

Confirmatory Factor ◽

Test Retest Reliability

Background: Only 61% of Malawian women exclusively breastfeed to the recommended 6 months. Paternal support is predictive of exclusive breastfeeding, and significantly related to paternal breastfeeding self-efficacy, defined as fathers’ confidence in their ability to assist mothers with breastfeeding. Research Aims: To (1) examine the psychometric properties of the Paternal Breastfeeding Self-Efficacy Scale-Short Form (BSES-SF) in Malawian fathers, including internal consistency reliability, test-retest reliability, construct validity using Confirmatory Factor Analysis (CFA), and convergent validity; and (2) assess the relationship between the BSES-SF and paternal demographic and health factors. Methods: A cross-sectional study was conducted at a maternity hospital in Lilongwe, Malawi, and 180 fathers whose partners had delivered a singleton infant were included. Participants completed the Breastfeeding Self-Efficacy Scale and Quality of Life with confirmatory factor analysis performed to assess the construct validity. The internal consistency reliability and test-retest reliability were evaluated using Cronbach’s alpha coefficient and intra-class correlations. Convergent validity was also assessed. Results: A unidimensional factorial structure of the Malawian Paternal BSES-SF was identified using confirmatory factor analysis. The scale had an excellent Cronbach’s alpha of .90 and a test-retest reliability of .93. Participants’ breastfeeding self-efficacy was significantly correlated with the Quality of Life domains of psychological health ( r = .23; p < .01), social relationships ( r = .28; p < .001), and environmental health ( r = .30; p < .001). Participants who were older, married, and with ≥ two children had significantly higher breastfeeding self-efficacy and were more confident in their ability to support their partner’s breastfeeding. Conclusion: The Paternal Breastfeeding Self-Efficacy Scale-Short Form was a valid and reliable measure to assess fathers’ confidence in their ability to assist mothers with breastfeeding in Malawi.

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Cross-Cultural Adaptation, Translation, and Validation of the Toronto Extremity Salvage Score for Extremity Bone and Soft Tissue Tumor Patients in Netherlands

Sarcoma ◽

10.1155/2017/6197525 ◽

2017 ◽

Vol 2017 ◽

pp. 1-6 ◽

Cited By ~ 1

Author(s):

Julie J. Willeumier ◽

C. W. P. G. van der Wal ◽

Robert J. P. van der Wal ◽

P. D. S. Dijkstra ◽

Thea P. M. Vliet Vlieland ◽

...

Keyword(s):

Soft Tissue ◽

Physical Function ◽

Short Form ◽

Intraclass Correlation ◽

Retest Reliability ◽

Sf 36 ◽

Toronto Extremity Salvage Score ◽

Patient Reported ◽

Test Retest Reliability ◽

Extremity Salvage

Purpose. The aim of this study was to translate and culturally adapt the Toronto Extremity Salvage Score (TESS) to Dutch and to validate the translated version. Methods. The TESS lower and upper extremity versions (LE and UE) were translated to Dutch according to international guidelines. The translated version was validated in 98 patients with surgically treated bone or soft tissue tumors of the LE or UE. To assess test-retest reliability, participants were asked to fill in a second questionnaire after one week. Construct validity was determined by computing Spearman rank correlations with the Short Form- (SF-) 36. Results. The internal consistency (0.957 and 0.938 for LE and UE, resp.) and test-retest reliability (intraclass correlation coefficients 0.963 and 0.969 for LE and UE, resp.) were good for both questionnaires. The Dutch LE and UE TESS versions correlated most strongly with the SF-36 physical function dimension (r=0.737 for LE, 0.726 for UE) and the physical component summary score (r=0.811 and 0.797 for LE and UE). Interpretation. The Dutch TESS questionnaire for lower and upper extremities is a consistent, reliable, and valid instrument to measure patient-reported physical function in surgically treated patients with a soft tissue or bone tumor.

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The Arabic LupusPRO: A Cross-Cultural Validation of a Disease-Specific Patient-Reported Outcome Tool for Quality of Life in Lupus Patients

Lupus ◽

10.1177/0961203320953482 ◽

2020 ◽

Vol 29 (13) ◽

pp. 1727-1735

Author(s):

Nourhan Elameen Elkaraly ◽

Samah Ismail Nasef ◽

Aziza Sayed Omar ◽

Ahmed Mahmoud Fouad ◽

Meenakshi Jolly ◽

...

Keyword(s):

Quality Of Life ◽

Systemic Lupus Erythematosus ◽

Lupus Erythematosus ◽

Arabic Version ◽

Systemic Lupus ◽

Retest Reliability ◽

Sf 36 ◽

Patient Reported ◽

Test Retest Reliability

Objective To translate and cross-culturally adapt the Arabic version of LupusPRO v.1.8 and to test its reliability and validity. Methods LupusPRO was translated into the Arabic language following a standard procedure with forward-backward translation and was tested in patients with systemic lupus erythematosus (SLE) before use. The Arabic version was administered to 107 Egyptian SLE patients, along with a validated Arabic version of RAND 36-Item Health Survey 1.0 (SF-36). The internal consistency and test-retest reliability were determined. Validity was assessed by correlating LupusPRO scores with SF-36, Safety of Estrogens in Lupus Erythematosus National Assessment–Systemic Lupus Erythematosus Disease Activity Index (SELENA-SLEDAI) and Systemic Lupus International Collaborating Clinics/American College of Rheumatology Damage Index (SDI). The conceptual framework of the Arabic LupusPRO was evaluated using confirmatory factor analysis (CFA). Results Among the 107 SLE patients, 95% were women with a median (range) age of 32 (18-55) years, median (range) SELENA-SLEDAI of 6 (0-23) and median (range) SDI of 0 (0-6). The Cronbach's alpha for the Arabic LupusPRO ranged from 0.71 to 0.98, except for the social support domain (0.65). Test-retest reliability ranged from 0.95 to 0.99. Convergent validity with corresponding domains of SF 36 was satisfactory. For criterion validity, there was a weak but significant correlation between several LupusPRO domains with SELENA-SLEDAI. CFA showed a good model fit. Conclusion The Arabic version of LupusPRO v1.8 is a reliable and valid tool for measuring quality of life among Arabic speaking SLE patients.

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Psychometric validation and cross-cultural adaptation of the Integrated Palliative care Outcome Scale in Polish (IPOS-Pol)

Palliative & Supportive Care ◽

10.1017/s1478951521001176 ◽

2021 ◽

pp. 1-7

Author(s):

Marta Szeliga ◽

Aleksandra Kotlińska-Lemieszek ◽

Paweł Jagielski ◽

Wojciech Jaroszewski ◽

Ilona Kuźmicz ◽

...

Keyword(s):

Palliative Care ◽

Correlation Coefficient ◽

Internal Consistency ◽

Intra Class Correlation ◽

Retest Reliability ◽

Patient Version ◽

Eortc Qlq ◽

Test Retest Reliability ◽

Intra Class Correlation Coefficient

Abstract Objective The study aimed to assess the reliability and validity of the IPOS-Pol for patient self-reporting. Method Patients (>18 years of age) with advanced cancer admitted to three palliative care centers (inpatient units and home-based) were recruited to a multicenter, cross-sectional, observational, prospective study. Participants provided responses to the IPOS-Pol Patient version and the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire – Core 15 – Palliative Care (EORTC QLQ-C15-PAL) Polish version at baseline (T1) and four to seven days later (T2). We assessed test–retest reliability, internal consistency, and construct validity of the tool. Results One hundred and eighty patients were included. Test–retest reliability demonstrated no statistically significant differences in the average outcomes of the IPOS-Pol between T1 and T2 (27.2 ± 9.2 vs. 26.5 ± 8.7; p > 0.05). The intra-class correlation coefficient between T1 and T2 was r = 0.83 (p < 0.0001), the intra-class correlation coefficient for test–retest reliability of the IPOS-Pol items ranged from 0.63 to 0.84 (p < 0.0001), and the Cronbach's α coefficient for internal consistency was 0.773. The correlation coefficient between the IPOS-Pol and EORTC QLQ-C15-PAL total score was 0.79 (p < 0.001). Significance of results The patient version of the Polish adaptation of IPOS is a valid and reliable outcome measure for assessing symptoms and concerns of individuals receiving palliative care, as well as the quality of care provided.

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Functional Disability Among Systemic Sclerosis Patients: Relation to Disease Characteristics and Quality of Life Parameters

Current Rheumatology Reviews ◽

10.2174/1573397117666211130150241 ◽

2021 ◽

Vol 17 ◽

Author(s):

Rabab S. Zaghlol ◽

Ghada A. Dawa ◽

Wafaa K. Makarm

Keyword(s):

Quality Of Life ◽

Functional Disability ◽

Short Form ◽

Management Strategies ◽

Bodily Pain ◽

Health Assessment ◽

Clinical Findings ◽

Cross Sectional ◽

Sf 36

Background: Disability in patients with scleroderma (SSc) has been associated with poor health-related quality of life (HRQoL) in all dimensions, including physical, psychological, and social dimensions. Objective: This study was conducted to examine different factors that may be associated with functional disability and poor HRQoL, with the aim of targeting these factors in the future to improve physical activity, functional outcomes, and HRQoL. Methods: A single-center cross-sectional study was conducted on 38 patients with SSc to compare characteristics between patients with and without disability using the Health Assessment Questionnaire Disability Index (HAQ-DI). Quality of life was assessed using the Short Form–36 (SF-36). Linear regressions were performed to examine variables contributing to functional disability. Results: Almost 65.78% (n = 25) of patients in the study group reported functional disability. The presence of functional disability was associated with reduced HRQoL, as reflected by physical function (P = 0.0001), physical role (P = 0.016), bodily pain (P = 0.001), general health (P = 0.002), social functional (P = 0.002), emotional role (P = 0.042), and mental health (P = 0.025) domains of the SF-36 score. Multiple linear regression indicated that the main predictive factors associated with HAQ-DI were the modified Hand Mobility in Scleroderma; modified Rodnan skin score; DIstance walked in 6 minutes, BOrg dyspnea index, and SAturation of oxygen at 6 minutes (DIBOSA); and Fatigue Severity Scale among patients with SSc. Conclusion: In patients with SSc, recognizing the relationships between clinical findings and functional disability will allow the development of further management strategies to minimize disease severity and enhance HRQoL.

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