Cross-cultural adaptation and validation of the Persian version of the Intermittent and Constant Osteoarthritis Pain Measure for the knee

Arabic version of the intermittent and constant osteoarthritis pain questionnaire (ICOAP-Ar): translation, cross-cultural adaptation, and measurement properties

BACKGROUND

Pain is the most incapacitating symptom of knee osteoarthritis (OA), with intermittent and/or continuous nature as described by the patients. Accuracy of pain assessment tools across different cultures is important. This study aimed to translate and culturally adapt the Intermittent and Constant OsteoArthritis Pain (ICOAP) measure into Arabic (ICOAP-Ar) and evaluate its psychometric properties in patients with knee OA.

METHODS

The ICOAP was cross-culturally adapted following the recommended guidelines from English. Knee OA patients from outpatient clinics were recruited to assess the structural (confirmatory factor analysis) and construct validity (Spearman's correlation coefficient - rho) to assess the relationship between the ICOAP-Ar and the pain and symptoms subscales of the Knee Injury and Osteoarthritis Outcome Score (KOOS), in addition to internal consistency (Cronbach's alpha and the corrected item-total correlation). A week later, test-retest reliability (intraclass correlation coefficient (ICC)) was evaluated. Following four weeks of physical therapy treatment, the ICOAP-Ar responsiveness was evaluated using the receiver operating characteristic curve.

RESULTS

Ninety-seven participants were recruited (age = 52.97 ± 9.9). A model with single pain construct showed acceptable fit (Comparative fit index = 0.92). The ICOAP-Ar total and subscales had a strong to moderate negative correlation with the KOOS pain and symptoms domains, respectively. The ICOAP-Ar total and subscales demonstrated satisfactory internal consistency (α = 0.86-0.93). The ICCs were excellent (ICCs = 0.89-0.92) with acceptable corrected item total correlations (rho = 0.53-0.87) for the ICOAP-Ar items. The ICOAP-Ar responsiveness was good with moderate effect size (ES = 0.51-0.65) and large standardized response mean (SRM = 0.86-0.99). A cut-off point of 51.1/100 was determined with moderate accuracy (Area under the curve = 0.81, sensitivity = 85%, specificity = 71%). No floor or ceiling effects were found.

CONCLUSIONS

The ICOAP-Ar exhibited good validity, reliability, and responsiveness after physical therapy treatment for knee OA, which renders it reliable for evaluating knee OA pain in clinical and research settings.

Psychometric properties of the 12-item Knee injury and Osteoarthritis Outcome Score (KOOS-12) Spanish version for people with knee osteoarthritis

To evaluate the validity, reliability, and responsiveness to change of the 12-item Knee injury and Osteoarthritis Outcome Score (KOOS) Spanish version questionnaire. This study was based on a questionnaire validation design. A cross-sectional survey of 199 patients with knee osteoarthritis (KOA) and ten healthy controls was studied to evaluate the validity and reliability of KOOS-12. One hundred and sixteen patients were assessed for test-retest reliability, and 38 patients were included for a responsiveness assessment. Structural validity was assessed by the confirmatory factor analysis (CFA). Item response theory-based methods were used to determine the performance of the items. Internal consistency reliability was appropriate for all scales (Cronbach's alpha = 0.85-0.94). The intra-class correlation coefficient of KOOS-12 scales ranged from 0.60 to 0.71. The CFA and generalized partial credit model showed that KOOS-12 scales presented a good overall model fit. No differential item functioning was found. Convergent validity was demonstrated by strong correlations (Spearman's rho ≥ 0.70) with KOOS, International Knee Documentation Committee subjective knee evaluation form (IKDC), and Knee Intermittent and Constant Osteoarthritis Pain (ICOAP). Known-groups validity showed that KOOS-12 well discriminated subgroups of patients (radiographic severity and nutritional status). Standardized response means for KOOS-12 scales were ≥ 0.75. Changes in KOOS-12 scales had a moderate to strong correlation (Pearson's r ≥ 0.40) with the changes in the KOOS, ICOAP, and IKDC scales. The KOOS-12 Spanish version is a valid, reliable, and responsiveness to change questionnaire to measure patients' opinions about their knee and associated problems in Mexican subjects with KOA. Key Points • KOOS-12 is a short self-reported measure that assesses patient's opinions about the difficulties they experience due to problems with their knee and also covers aspects of pain, functional limitations, and knee-related quality of life. • The Spanish version of KOOS-12 questionnaire is a valid instrument for measuring the patients' opinions about their knee and associated problems, and is both reliable and responsiveness to change.

Low Level Laser Therapy in Knee Osteoarthritis: A Narrative Review

Knee osteoarthritis (KOA) is the most common musculoskeletal disorder, especially in middle up to old age. KOA also results in many complications like changes in gait. Nowadays, changes in lifestyle and the reduced physical activity make people more vulnerable to KOA. Therefore, considering the increasing prevalence of KOA in many societies and the costs imposed on the afflicted people and their governments, providing conservative management approaches with a view to saving time and money is important. There are an assortment of conservative strategies in the management of KOA including low level laser therapy (LLLT). Since the introduction of lasers in the medical field in 1960, various types of lasers with widespread administration programs are used for medical conditions from cosmetics to surgery. However, there are conflicting findings on the application of lasers in osteoarthritis. To discuss the basis of the highest level of evidence, only systematic reviews with or without meta-analyses published up to January 2019 were included in the present work. In this regard, Scopus, PEDro, Medline, ISI Web of Science, Cochrane, PubMed, Irandoc, Iran Medex, Magiran, and SID were searched to retrieve articles in English or Persian. A total of 22 systematic reviews and meta-analyses were found, 14 of which were included in this study. The accepted articles were published between 1991 and up to 2019. The purpose of this narrative review was to investigate the effect of LLLT on pain and function in subjects with KOA. The result of the present review may help clinicians in making evidence-based decisions on optimal care in relation to administering LLLT.

Cross-Cultural Adaptation and Validation of the Arabic Version of the Intermittent and Constant Osteoarthritis Pain Questionnaire

This study aimed to translate and adapt the Intermittent and Constant Osteoarthritis Pain questionnaire into the Arabic language and evaluate the validity and reliability of this scale for participants with knee or hip osteoarthritis. This questionnaire was translated based on the Manufacturers Alliance for Productivity and Innovation protocol. The test-retest reliability was calculated using the Intraclass Correlation Coefficient. Then, Cronbach’s alpha was used to assess the internal consistency of Intermittent and Constant Osteoarthritis Pain questionnaire. After that, the criterion validity was evaluated against the Knee injury and Osteoarthritis Outcome Score. A total of 90 participants were included in this study, of which 29 participants were re-evaluated for reliability testing. The Intraclass Correlation Coefficient of the Knee Intermittent and Constant Osteoarthritis Pain questionnaire were 0.841, 0.923 and 0.911 for the total, constant, and intermittent knee pain, respectively. Cronbach’s alpha was 0.88, 0.93 and 0.94 for the total score, the intermittent knee pain and the constant knee pain, respectively. Eventually, criterion validity was r=0.24(P<0.05). Intermittent and Constant Osteoarthritis Pain in Arabic is a valid and reliable instrument to be used in Arabic-speaking patients with knee/hip osteoarthritis.

Effect of Self-Management Program on Pain and Disability Index in Elderly Men with Osteoarthritis

Background

Osteoarthritis (OA) is a progressive disease of the joints, leading to decreased function and disability.

Objectives

The study aimed to investigate the effect of self-management (SM) program on disability index and pain in aging men with knee OA.

Methods

The study included an SM group and a control group. Given the sample size of the previous studies, 83 patients were recruited. The study tools included a demographic profile questionnaire, visual analogue scale (VAS), and HAQ 8-item DI. The intervention included 10 SM sessions for patients in the SM group (8 sessions of in-person intervention and 2 sessions of telephone intervention). Patients were placed in groups of 7, and the sessions were held weekly each for a period of 45 to 60 minutes. Data were analyzed using descriptive and analytical tests by SPSS V. 16 software.

Results

The two groups(SM and control group) were homogeneous in terms of demographic characteristics (P > 0.05). The mean (SD) disability score was 19.12 (1.92) in the SM group before the intervention, which reduced to 14.70 (1.63) after the intervention (P = 0.000, T = 10.02). The mean (SD) pain score, was 9.19 (0.71) in the SM group before the intervention, which reduced to 6.48 (0.84) after the intervention (P = 0.000, T = 18.15).

Conclusions

Training can help patients perform SM measures and improve their health status by enhancing the information needed for the disease.

Reliability and Validity of the Persian Language Version of the Female Lower Urinary Tract Symptoms' Long form Questionnaire

Background:

Lower urinary tract symptoms (LUTS) are important and prevalent health problems that seriously affect many women and their quality of life (QOL). The female LUTS long form (FLUTS-LF) is a robust measure to assess the QOL of women. This study aimed at translating FLUTS-LF and assessing the reliability and validity of this questionnaire among Iranian patients with LUTS.

Materials and Methods:

Forward and backward translations of FLUTS-LF questionnaire were carried out by the research team. Data collection was conducted from November 2015 to March 2016 in Isfahan, Iran. A total of 237 women completed the Persian version of FLUTS-LF, incontinence QOL, and International Prostate Symptom Score (IPSS) questionnaires. We evaluated Cronbach's alpha coefficient, intraclass correlation coefficient (ICC), stability (reliability), and confirmatory factor analysis (CFA) of the questionnaire.

Results:

The mean (standard deviation) age of the participants was 45.4 (12.50) years (range 20–70 years). Face and content validities were acceptable and missing data comprise 2% of the total data. Internal consistency (Cronbach's alpha) of the urinary symptoms was 0.78. ICC of the total score in urinary symptoms section was 0.95. Indexes of factor analysis were assessed and found to be acceptable. A high correlation was observed between the total scores of FLUTS-LF and IPSS.

Conclusions:

It seems that FLUTS-LF questionnaire can be a suitable instrument for assessing LUTS and their impacts on Iranian women's QOL.