Assessment of measurement properties of the Brazilian-Portuguese version of the low back activity confidence scale (LoBACS) in patients with chronic low back pain

Autor: Josilainne Marcelino Dias, Mabel Micheline Olkoski, Kimiko A. Yamada, Mariana Felipe Silva, Laís Faganello Dela Bela, Leandro C. Guenka, Alexandre Roberto Marcondes Pelegrinelli, Jefferson Rosa Cardoso
Rok vydání: 2020
Předmět:
Male
Psychometrics
Intraclass correlation
Social Sciences
Geographical locations
Mathematical and Statistical Techniques
0302 clinical medicine
Sociology
Medicine and Health Sciences
Psychology
030212 general & internal medicine
Physiotherapy
Reliability (statistics)
Pain Measurement
Schools
Multidisciplinary
Statistics
Middle Aged
Self Efficacy
Scale (social sciences)
Physical Sciences
language
Medicine
Female
Analysis of variance
Factor Analysis
Brazil
Research Article
Adult
medicine.medical_specialty
Adolescent
Patients
Science
Lower Back Pain
Pain
Research and Analysis Methods
Education
Young Adult
03 medical and health sciences
Signs and Symptoms
Brazilian Portuguese
medicine
Humans
Statistical Methods
Aged
Analysis of Variance
business.industry
Reproducibility of Results
Biology and Life Sciences
Construct validity
Repeated measures design
Translating
South America
language.human_language
Health Care
Chronic Disease
Physical therapy
People and places
Clinical Medicine
Factor Analysis
Statistical
business
Low Back Pain
Mathematics
030217 neurology & neurosurgery
Zdroj: PLoS ONE, Vol 15, Iss 9, p e0239332 (2020)
PLoS ONE
ISSN: 1932-6203
Popis: The Low Back Activity Confidence Scale (LoBACS) assesses the self-efficacy to perform activities in individuals with chronic low back pain (CLBP). As self-efficacy appears to directly influence the patient’s functional capacity and prognosis, it is important to develop a scale that evaluates this attribute to guide treatment strategy and monitor the clinical course of patients. This study aimed to evaluate the reliability, construct validity, and responsiveness of the Brazilian version of the LoBACS. The scale was applied to 112 male and female patients (age, 18–65 years) with specific and nonspecific CLBP. For evaluating the interobserver reliability, the scale was applied twice on the first evaluation day by two trained evaluators (A and B). Within 48–72 h of the first evaluation, assessor A reapplied the scale to evaluate intraobserver reliability (test–retest), which was analyzed by intraclass correlation coefficient (ICC). The first LoBACS applied in the baseline evaluation was also used to assess the construct validity of the scale by factor analysis. For responsiveness, the scale was applied 5 times at 2-week intervals and the change in scores was analyzed by the repeated measures ANOVA. Although factor analysis indicated three subscales, they did not present acceptable values of convergent and divergent validity. Reliability ranged from good to excellent, with ICC values of .90 (95% CI, .84; .93) and .85 (95% CI, .77; .91) for inter- and intraobserver variability for total score. Moreover, the total score was responsive in all comparisons, with no floor or ceiling effects. Thus, only the total score of the Brazilian version of LoBACS proved to be reliable, valid, and responsive.
Databáze: OpenAIRE
Externí odkaz: