The Hausa Back Beliefs Questionnaire: Translation, cross-cultural adaptation and psychometric assessment in mixed urban and rural Nigerian populations with chronic low back pain

Introduction Negative attitudes and beliefs about low back pain (LBP) can lead to reduced function and activity and consequently disability. One self-report measure that can be used to assess these negative attitudes and beliefs and to determine their predictive nature is the Back Beliefs Questionnaire (BBQ). This study aimed to translate and cross-culturally adapt the BBQ into Hausa and assess its psychometric properties in mixed urban and rural Nigerian populations with chronic LBP. Methods The BBQ was translated and cross-culturally adapted into Hausa (Hausa-BBQ) according to established guidelines. To assess psychometric properties, a consecutive sample of 200 patients with chronic LBP recruited from urban and rural clinics of Nigeria completed the questionnaire along with measures of fear-avoidance beliefs, pain catastrophizing, functional disability, physical and mental health, and pain. One hundred of the 200 patients completed the questionnaire twice at an interval of 7–14 days to assess test-retest reliability. Internal construct validity was assessed using exploratory factor analysis, and external construct validity was assessed by examining convergent, divergent, and known-groups validity. Reliability was assessed by calculating internal consistency (Cronbach’s α), intraclass correlation coefficients (ICC), standard error of measurement (SEM), minimal detectable change at 95% confidence interval (MDC95), and limits of agreement using Bland-Altman plots. Reliability (ICC, SEM and MDC95) was also assessed separately for rural and urban subgroups. Results The factor analysis revealed a four-factor solution explaining 58.9% of the total variance with the first factor explaining 27.1%. The nine scoring items loaded on the first factor hence supporting a unidimensional scale. The convergent and divergent validity were supported as 85% (6:7) of the predefined hypotheses were confirmed. Known-groups comparison showed that the questionnaire discriminated well for those who differed in education (p < 0.05), but not in age (p > 0.05). The internal consistency and ICC (α = 0.79; ICC = 0.91) were adequate, with minimal SEM and MDC95 (1.9 and 5.2, respectively). The limits of agreements were –5.11 to 5.71. The ICC, SEM and MDC95 for the urban and rural subgroups were comparable to those obtained for the overall population. Conclusions The Hausa-BBQ was successfully adapted and psychometrically sound in terms of internal and external construct validity, internal consistency, and test-retest reliability in mixed urban and rural Hausa-speaking populations with chronic LBP. The questionnaire can be used to detect and categorize specific attitudes and beliefs about back pain in Hausa culture to prevent or reduce potential disability due to LBP.

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Cross-cultural adaptation and psychometric validation of the Hausa version of Örebro Musculoskeletal Pain Screening Questionnaire in patients with non-specific low back pain

Scandinavian Journal of Pain ◽

10.1515/sjpain-2020-0071 ◽

2020 ◽

Vol 0 (0) ◽

Author(s):

Usman Abba Ahmed ◽

Sonill S. Maharaj ◽

Thayananthee Nadasan ◽

Bashir Kaka

Keyword(s):

Low Back Pain ◽

Back Pain ◽

Construct Validity ◽

Psychometric Properties ◽

Musculoskeletal Pain ◽

Internal Consistency ◽

Low Back ◽

English Version ◽

Screening Questionnaire ◽

Culturally Adapted

AbstractObjectivesOrebro Musculoskeletal Pain Screening Questionnaire (OMPSQ) is widely used in clinical practice and for research purpose to screen the risk of chronicity in patients with Non-specific low back pain (NSLBP). The questionnaire has been cross-culturally adapted into different languages, but to date, there has not been Hausa version of the questionnaire. This study is important as the Hausa language is widely spoken across sub-Saharan Africa. The study aims to cross-culturally translate the English version of the (OMPSQ) into Hausa language (OMPSQ-H) and to test its psychometric properties in Hausa patients with NSLBP.MethodsThis observational study involved the use of forward-backwards translation method for the English version of OMPSQ. Thus, 124 male and female participants with subacute NSLBP were recruited using convenient sampling techniques. The psychometric properties statistically tested included reliability, internal-consistency, ceiling and floor effects, acceptability and construct validity.ResultsThe Hausa version of OMPSQ has demonstrated good reliability (ICC=0.82) and internal consistency (Cronbach’s alpha=0.72) with good acceptability as all questions were answered in 5 min. Responsiveness was adequate as OMPSQ-H retest scores demonstrated good correlation with the global rating of change scale scores (r=0.67, p=0.01). Construct validity was evaluated using principal component analysis and it reveals six components structure for the OMPSQ-H.ConclusionsThe OMPSQ-H was successfully translated and cross-culturally adapted with no problem of comprehension. Moreover, it has shown adequate psychometric properties in terms of internal consistency, reliability, responsiveness and constructs validity. Consequently, the OMPSQ-H can be considered as a valid tool for identifying and screening both psychosocial risk factors and risk of chronicity of NSLBP in Hausa population.

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Cross-cultural translation, adaptation, and validation of the Amharic version pain self-efficacy questionnaire in people with low back pain in Ethiopia

BMC Musculoskeletal Disorders ◽

10.1186/s12891-021-03985-4 ◽

2021 ◽

Vol 22 (1) ◽

Author(s):

Mulugeta Bayisa Chala ◽

Catherine Donnelly ◽

Yemataw Wondie ◽

Setareh Ghahari ◽

Jordan Miller

Keyword(s):

Factor Analysis ◽

Low Back Pain ◽

Back Pain ◽

Psychometric Properties ◽

Internal Consistency ◽

Self Efficacy ◽

Bodily Pain ◽

Low Back ◽

Sf 36 ◽

Pain Subscale

Abstract Background The Pain Self-Efficacy Questionnaire (PSEQ) is a valid and reliable instrument that evaluates pain self-efficacy beliefs in people with pain conditions. However, it has not been validated and used in Ethiopia. We conducted this study to translate, adapt, and test the psychometric properties of the PSEQ in the Amharic language and Ethiopian context for its use with people experiencing low back pain (LBP). Methods The PSEQ was translated into Amharic and then back-translated into English. An expert review committee created a final Amharic version of the tool (PSEQ-Am), followed by pilot testing and cognitive debriefing with a sample of 20 people with LBP. The psychometric properties of the final version of PSEQ-Am were assessed in a sample of 240 people with LBP recruited from three rehabilitation centers in Ethiopia. Cronbach’s alpha and Intra-class correlation coefficient were calculated to describe the reliability and internal consistency of the tool. The SF-36-Am bodily pain subscale was used to assess convergent validity. Confirmatory Factor Analysis (CFA) and Exploratory Factor Analysis (EFA) were performed to determine the dimensionality of the instrument. Results PSEQ-Am demonstrated excellent test-retest reliability (ICC = 0.93) and internal consistency (Cronbach’s alpha = 0.91). As hypothesized, the tool demonstrated a significant moderate correlation with the Bodily Pain subscale of the SF-36-Am (Rho = 0.51, p < 0.01). EFA analysis shows that the Amharic version of PSEQ is a dominant one factor and secondary two factor structure. Conclusion This study shows that PSEQ-Am is a reliable and valid tool that can be used in both clinical practice and research in the Ethiopian low back pain population.

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Validation of the Beliefs of Physical Activity among Clergy (B-PAC) Instrument

American Journal of Health Studies ◽

10.47779/ajhs.2017.91 ◽

2017 ◽

Vol 32 (2) ◽

Author(s):

Shannon Gwin ◽

Paul Branscum ◽

E. Laurette Taylor

Keyword(s):

Physical Activity ◽

Factor Analysis ◽

Construct Validity ◽

Psychometric Properties ◽

Internal Consistency ◽

Internal Consistency Reliability ◽

Retest Reliability ◽

Reliable Instrument ◽

The Stability ◽

Test Retest Reliability

The purpose of this study was to create a valid and reliable instrument to evaluate theory-basedbeliefs towards physical activity among clergy members. Data were collected from 174 clergy that par-ticipated in a 15-item online and paper-based survey. Psychometric properties of the instrument includedconfirmatory factor analysis (construct validity), and cronbach’s alpha (internal consistency reliability).In addition, the stability (test-retest reliability) of each subscale was evaluated with a sub-sample of 30participants. Results show the instrument was both valid and reliable, and will be useful in future studiestargeting this population. Future implications are discussed.

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The Patient Enablement Instrument for Back Pain: Reliability, Content Validity, Construct Validity and Responsiveness

10.21203/rs.3.rs-117458/v1 ◽

2020 ◽

Author(s):

Anne Molgaard Nielsen ◽

Jan Hartvigsen ◽

Alice Kongsted ◽

Birigtta Öberg ◽

Paul Enthoven ◽

...

Keyword(s):

Low Back Pain ◽

Back Pain ◽

Construct Validity ◽

Content Validity ◽

Low Back ◽

Fear Avoidance ◽

Consistency Test ◽

Patient Enablement ◽

Patient Enablement Instrument ◽

Test Retest Reliability

Abstract Background Currently, there are no outcome measures assessing the ability of people with non-specific low back pain to self-manage their illness. Inspired by the ‘Patient Enablement Instrument’, we developed the Patient Enablement Instrument for Back Pain (PEI-BP). The aim of this study was to describe the development of the Patient Enablement Instrument for Back Pain (PEI-BP) and investigate content validity, construct validity, internal consistency, test-retest reliability, measurement error, responsiveness and floor and ceiling effects.Methods The PEI-BP consists of 6 items that are rated on a 0-10 Numeric Rating Scale. Measurement properties were evaluated using the COSMIN taxonomy and were based on three cohorts from primary care with low back pain: The content validity cohort (N=14) which participated in semi-structured interviews, the GLA:D Back cohort (N=272) and the test-retest cohort (N=37) which both completed self-reported questionnaires. For construct validity and responsiveness, enablement was compared to disability (Oswestry Disability Index), back pain beliefs (Brief Illness Perception Questionnaire), fear avoidance (Fear-Avoidance Beliefs Questionnaire – physical activity), mental health (SF-36), educational level and number of previous episodes of low back pain.Results The PEI-BP was found to have acceptable content validity, construct validity, reliability (internal consistency, test-retest reliability and measurement error) and responsiveness. The Smallest Detectable Change was 10.1 points illustrating that a patient would have to change more than 1/6 of the scale range for it to be a true change. A skewed distribution towards the high scores were found at baseline indicating a potentially problematic ceiling effect in the current population.Conclusions The PEI-BP can be considered a valid and reliable tool to measure enablement on people seeking care for non-specific LBP. Further testing of the PEI-BP in populations with more severe LBP is recommended.Trial registration: not applicable

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Development of the Hausa Version of the Pain Catastrophizing Scale: Translation, Cross-Cultural Adaptation and Psychometric Evaluation in Mixed Urban and Rural Patients with Chronic Low Back Pain

10.21203/rs.3.rs-48391/v1 ◽

2020 ◽

Author(s):

Aminu A. Ibrahim ◽

Mukadas O. Akindele ◽

Bashir Kaka ◽

Naziru B. Mukhtar

Keyword(s):

Factor Analysis ◽

Low Back Pain ◽

Back Pain ◽

Internal Consistency ◽

Concurrent Validity ◽

Pain Catastrophizing ◽

Low Back ◽

Pain Catastrophizing Scale ◽

Factorial Structure ◽

Rural Patients

Abstract Background: Catastrophizing has been recognized as an important contributor to chronicity in individuals with chronic pain syndromes including low back pain (LBP). The Pain Catastrophizing Scale (PCS) is perhaps the most widely used questionnaire to evaluate the degree of pain catastrophizing. However, its use is limited in Hausa-speaking countries due to the lack of a validated translated version.Objective: To translate and cross-culturally adapt the PCS into Hausa (Hausa-PCS) and evaluate its psychometric properties in mixed urban and rural patients with chronic LBP.Methods: The original PCS was translated and cross-culturally adapted into Hausa in accordance with established guidelines. To evaluate psychometric properties, a consecutive sample of 200 patients with chronic LBP was recruited from urban and rural Nigerian hospitals. Validity was evaluated by exploring content validity (skewness and item-total correlation), factorial structure (exploratory factor analysis [EFA] and confirmatory factor analysis [CFA]), concurrent validity (Spearman’s rho) and known-groups validity. Reliability was evaluated by calculating internal consistency (Cronbach’s α), intraclass correlation coefficient (ICC), standard error of measurement (SEM), minimal detectable change (MDC) and limits of agreement with 95% confidence interval (LOA95%).Results: The Hausa-PCS demonstrated good face and content validity. Both EFA and CFA confirmed a 3-factor structure similar to the original English version. The concurrent validity was supported as 83% (5/6) of the a priori hypotheses were confirmed. Known-groups comparison showed that the questionnaire was unable to differentiate between male and female or urban and rural patients (p > 0.05). Internal consistency and ICC was adequate for the Hausa-PCS total score (α = 0.84; ICC = 0.90) and the subscale helplessness (α = 0.78; ICC = 0.89) but for the subscales rumination (α = 0.69; ICC =0.68) and magnification (α = 0.41; ICC = 0.43). The LOA95% for the Hausa-PCS total score was between –8.10 and +9.75, with SEM and MDC of 3.47 and 9.62 respectively. Conclusion: The Hausa-PCS was successfully developed and psychometrically adequate in terms of factorial structure, concurrent validity, internal consistency and test-retest reliability when applied in mixed urban and rural patients with chronic LBP. However, the internal consistency and reliability coefficients (ICC) for the individual subscales are questionable. Thus, we support the use of the total score when evaluating pain catastrophizing for clinical or research purposes.

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The Persian Brief Illness Perception Questionnaire: Validation in Patients with Chronic Nonspecific Low Back Pain

The Scientific World JOURNAL ◽

10.1155/2021/3348011 ◽

2021 ◽

Vol 2021 ◽

pp. 1-7

Author(s):

Sarvenaz Karimi-Ghasemabad ◽

Behnam Akhbari ◽

Ahmad Saeedi ◽

Saeed Talebian Moghaddam ◽

Noureddin Nakhostin Ansari

Keyword(s):

Low Back Pain ◽

Back Pain ◽

Construct Validity ◽

Illness Perception ◽

Illness Representations ◽

Low Back ◽

Retest Reliability ◽

Illness Perception Questionnaire ◽

Test Retest Reliability ◽

Brief Illness Perception Questionnaire

Background. Illness perceptions may influence coping behaviors as well as treatment and recovery among patients with chronic pain including low back pain (LBP). These perceptions may vary across different conditions. The Brief Illness Perception Questionnaire (BIPQ) is used as an instrument to assess the patients’ perception of illness. Although the BIPQ has been previously translated into Persian, its psychometric properties have not been evaluated among patients with chronic nonspecific LBP. The aim of this study was to determine the reliability and validity of the Persian BIPQ in patients with chronic nonspecific LBP. Methods. 116 patients with chronic nonspecific LBP with a mean (standard deviation) age of 36.4 years (10.7) participated in this cross-sectional study. Fifty patients were reexamined after 10 to 12 days for test-retest reliability. Internal consistency reliability, construct validity, concurrent criterion validity, and structural validity were evaluated. The concurrent validity was examined by using the Short Form-36 Health Survey. Results. There were no floor and ceiling effects. Cronbach’s alpha for the total score was 0.90. The intraclass correlation coefficient (ICC) for test-retest reliability was 0.90. The standard error of measurement and the minimal detectable change was found to be 3.26 and 9.04, respectively. The convergent correlations confirmed the construct validity. The concurrent criterion validity was demonstrated by significant negative correlations with the SF-36. The Exploratory Factor Analysis produced the 2 factors (emotional illness representations and cognitive illness representations) with an eigenvalue >1.0 that jointly accounted for 58.86% of the total variance. Conclusion. The Persian BIPQ is a reliable and 2-factor instrument and can be used for assessing illness perception in patients with chronic nonspecific LBP.

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A Short Version of the Physical Activity Enjoyment Scale: Development and Psychometric Properties

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph182111035 ◽

2021 ◽

Vol 18 (21) ◽

pp. 11035

Author(s):

Cheng Chen ◽

Susanne Weyland ◽

Julian Fritsch ◽

Alexander Woll ◽

Claudia Niessner ◽

...

Keyword(s):

Physical Activity ◽

Factor Analysis ◽

Construct Validity ◽

Psychometric Properties ◽

Internal Consistency ◽

Concurrent Validity ◽

Retest Reliability ◽

Confirmatory Factor ◽

Test Retest Reliability ◽

Activity Enjoyment

Objective: The purposes of this paper were to (a) develop a new short, theory-driven, version of the physical activity enjoyment scale (PACES-S) using content analysis; and (b) subsequently to measure the psychometric properties (construct validity, internal consistency, test–retest reliability, and concurrent validity) of the PACES-S for adolescents. Methods: Six experts used a four-point Likert scale to assess the content validity of each of the 16 items of the physical activity enjoyment scale according to a provided definition of physical activity enjoyment. Based on the results, exploratory factor analysis was used to analyze survey data from a longitudinal study of 182 individuals (Measure 1 of Study 1: 15.75 ± 3.39 yrs; 56.6% boys, 43.4% girls), and confirmatory factor analysis (Measure 2 of Study 1: 15.69 ± 3.44 yrs; 56.3% boys, 43.7% girls) was used to analyze the survey data from a cross-sectional study of 3219 individuals (Study 2; 15.99 ± 3.10 yrs; 47.8% boys, 52.2% girls) to assess the construct validity of the new measure. To assess the reliability, test–retest reliability was assessed in Study 1 and internal consistency in Study 1 and 2. For the concurrent validity, correlations with self-reported and device-based physical activity behavior were assessed in both studies. Results: Four out of sixteen items were selected for PACES-S. Exploratory factor analysis and confirmatory factor analyses identified and supported its factorial validity (χ2 = 53.62, df = 2, p < 0.001; RMSEA = 0.073; CFI = 0.99; RFI = 0.96; NFI = 0.99; TLI = 0.96; IFI = 0.99). Results showed good test–retest reliability (r = 0.76) and internal consistency (a = 0.82 to 0.88). Regarding concurrent validity, the results showed positive correlations with a physical activity questionnaire (Study 1: r = 0.36), with a physical activity diary (Study 1: r = 0.44), and with accelerometer-recorded data (Study 1: r = 0.32; Study 2: r = 0.21). Conclusions: The results indicate that PACES-S is a reliable and valid instrument that may be particularly useful to measure physical activity enjoyment in large-scale studies. It shows comparable measurement properties as the long version of PACES.

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Development and measurement properties of the AxEL (attitude toward education and advice for low-back-pain) questionnaire

Health and Quality of Life Outcomes ◽

10.1186/s12955-021-01908-4 ◽

2022 ◽

Vol 20 (1) ◽

Author(s):

Edel T. O’Hagan ◽

Ian W. Skinner ◽

Matthew D. Jones ◽

Emma L. Karran ◽

Adrian C. Traeger ◽

...

Keyword(s):

Factor Analysis ◽

Low Back Pain ◽

Back Pain ◽

Construct Validity ◽

Exploratory Factor Analysis ◽

Self Efficacy ◽

Measurement Properties ◽

Inverse Association ◽

Low Back ◽

First Line

Abstract Introduction Clinician time and resources may be underutilised if the treatment they offer does not match patient expectations and attitudes. We developed a questionnaire (AxEL-Q) to guide clinicians toward elements of first-line care that are pertinent to their patients with low back pain. Methods We used guidance from the COSMIN consortium to develop the questionnaire and evaluated it in a sample of people with low back pain of any duration. Participants were recruited from the community, were over 18 years and fluent in English. Statements that represented first-line care were identified. Semantic scales were used to measure attitude towards these statements. These items were combined to develop the questionnaire draft. Construct validity was evaluated with exploratory factor analysis and hypotheses testing, comparing to the Back Beliefs Questionnaire and modified Pain Self-Efficacy Questionnaire. Reliability was evaluated and floor and ceiling effects calculated. Results We recruited 345 participants, and had complete data for analysis for 313 participants. The questionnaire draft was reduced to a 3-Factor questionnaire through exploratory factor analysis. Factor 1 comprised 9 items and evaluated Attitude toward staying active, Factor 2 comprised 4 items and evaluated Attitude toward low back pain being rarely caused by a serious health problem, Factor 3 comprised 4 items and evaluated Attitude toward not needing to know the cause of back pain to manage it effectively. There was a strong inverse association between each factor and the Back Beliefs Questionnaire and a moderate positive association with the modified Pain Self-Efficacy Questionnaire. Each independent factor demonstrated acceptable internal consistency; Cronbach α Factor 1 = 0.92, Factor 2 = 0.91, Factor 3 = 0.90 and adequate interclass correlation coefficients; Factor 1 = 0.71, Factor 2 = 0.73, Factor 3 = 0.79. Conclusion This study demonstrates acceptable construct validity and reliability of the AxEL-Q, providing clinicians with an insight into the likelihood of patients following first-line care at the outset.

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The Persian Brief Illness Perception Questionnaire: validation in patients with chronic non-specific low back pain

10.21203/rs.3.rs-23777/v1 ◽

2020 ◽

Author(s):

Sarvenaz Karimi-GhasemAbad ◽

Behnam Akhbari ◽

Ahmad Saeedi ◽

Saeed Talebian Moghaddam ◽

Noureddin Nakhostin Ansari

Keyword(s):

Low Back Pain ◽

Back Pain ◽

Construct Validity ◽

Illness Perception ◽

Illness Representations ◽

Low Back ◽

Retest Reliability ◽

Illness Perception Questionnaire ◽

Test Retest Reliability ◽

Brief Illness Perception Questionnaire

Abstract Background: The Brief Illness Perception Questionnaire (BIPQ) is used as an instrument to assess the patients’ perception of illness. Illness perceptions of patients vary across different conditions. The psychometric properties of the Persian version of BIPQ have not been adequately evaluated. The aim of this study was to determine the reliability and validity of the Persian BIPQ in patients with chronic non-specific low back pain (LBP).Methods: In this cross-sectional study, 116 patients with chronic non-specific LBP with a mean (standard deviation) age of 36.4 years (10.7) participated. Fifty patients reexamined after 10-12 days for test-retest reliability. Internal consistency reliability, construct validity, concurrent criterion validity, and structural validity were evaluated. The concurrent validity was examined by using the Short Form -36 Health Survey.Results: There were no floor and ceiling effects. The Cronbach’s alpha for the total score was 0.9. The intraclass correlation coefficient (ICC) for test-retest reliability was 0.9. The standard error of measurement and the minimal detectable change was found 3.26 and 9.04, respectively. The convergent correlations confirmed the construct validity. The concurrent criterion validity was demonstrated by significant negative correlations with the SF-36. The Exploratory Factor Analysis produced the two factors (Emotional illness representations and Cognitive ıllness representations) with an eigenvalue > 1.0 that jointly accounted for 58.86% of the total variance.Conclusions: The Persian BIPQ is a reliable and valid two-factor instrument and can be used for assessing illness perception in patients with chronic non-specific LBP.

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Factor Structure, Validity, and Reliability of the STarT Back Screening Tool in Italian Obese and Non-obese Patients With Low Back Pain

Frontiers in Psychology ◽

10.3389/fpsyg.2021.740851 ◽

2021 ◽

Vol 12 ◽

Author(s):

Emanuele Maria Giusti ◽

Giorgia Varallo ◽

Alessandra Abenavoli ◽

Gian Mauro Manzoni ◽

Luca Aletti ◽

...

Keyword(s):

Low Back Pain ◽

Back Pain ◽

Psychometric Properties ◽

Screening Tool ◽

Self Report ◽

Low Back ◽

Factorial Structure ◽

Retest Reliability ◽

Start Back Screening Tool ◽

Test Retest Reliability

Background: The STarT Back Screening Tool (SBST) is a self-report questionnaire developed for prognostic purposes which evaluates risk factors for disability outcomes in patients with chronic low back pain. Previous studies found that its use enables to provide a cost-effective stratified care. However, its dimensionality has been assessed only using exploratory approaches, and reports on its psychometric properties are conflicting.Objective: The objective of this study was to assess the factorial structure and the psychometric properties of the Italian version of the STarT Back Screening Tool (SBST).Materials and Methods: Patients with medical diagnosis of low back pain were enrolled from a rehabilitation unit of a tertiary care hospital specialized in obesity care (Sample 1) and from a clinical internship center of an osteopathic training institute (Sample 2). At baseline and after 7 days patients were asked to fill a battery of self-report questionnaires. The factorial structure, internal consistency, test-retest reliability, and construct validity of the SBST were assessed.Results: One hundred forty-six patients were enrolled (62 from Sample 1 and 84 from Sample 2). The confirmatory factor analysis showed that the fit of the original two-correlated factors model was adequate (CFI = 0.98, TLI = 0.99, RMSEA = 0.03). Cronbach's α of the total scale (α = 0.64) and of the subscales (physical subscale α = 0.55; psychological subscale α = 0.61) was below the cutoffs, partly because of the low correlation of item 2 with the other items. Test-retest reliability was adequate (ICC = 0.84). The SBST had moderate correlations with comparisons questionnaires, except for the Roland-Morris Disability Questionnaire, which had a high correlation (r = 0.65).Discussion: The SBST has adequate psychometric properties and can be used to assess prognostic factors for disability in low back pain patients.

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