IntroductionThe Wisconsin Stone Quality of Life (WISQOL) questionnaire has been recently developed to objectively assess quality of life (QOL) in patients with nephrolithiasis. However, a French version of the questionnaire was lacking. Therefore, the aim of the present study was to develop and validate the French version of this tool.MethodsThe French version of the WISQOL (F-WISQOL) was developed in a multistep process involving primary translation, back-translation, and pilot testing among a group of patients (n=12). Nephrolithiasis patients from two tertiary care institutions were recruited into this study and completed the following questionnaires: the medical history form and either the WISQOL or F-WISQOL. Internal consistency was assessed using Cronbach’s α, and inter-domain associations were evaluated using Spearman’s rank correlation (r). One-way ANOVA was used to compare scores from the two groups (WISQOL and F-WISQOL).ResultsA total of 210 patients were enrolled in this study: 68 in the WISQOL group and 148 in the F-WISQOL group. Internal consistency was high for all domains in both groups (F-WISQOL: 0.924–0.970; WISQOL: 0.888–0.965). No statistically significant difference was found between the two groups’ scores. Inter-domain association, measured by Spearman correlation, was moderate to very strong between all the domains in the F-WISQOL. Values ranged from r=0.676–0.915, with acceptable correlation between D1, D2, and D3, but weaker correlation between D4 (vitality) and the three other domains (r=0.676–0.729).ConclusionsIn the present study, the French version of the WISQOL questionnaire was validated at two academic institutions. 相似文献
Background: The aim of this study was to evaluate the outcome in patients with liver cirrhosis who underwent laparoscopic cholecystectomy for symptomatic gallstone disease. Methods: Retrospective analysis of prospectively collected data of 34 patients operated between March 1998 and April 2006. Results: There were 19 male and 15 female patients with a median age of 62 years. Cirrhosis aetiology was viral hepatitis in 25 patients, alcohol in 6, primary biliary cirrhosis in 2 and in 1 patient the cause was not identified. Twenty‐three were classified as Child–Pugh–Turcotte stage A and 11 as Child–Pugh–Turcotte stage B. The median Model For End‐Stage Liver Disease score was 12. Median operating time was 96 min. In three patients there was conversion to open cholecystectomy. Postoperatively, one patient died and six more patients had complications. Median postoperative stay was 3 days. Patients with acute cholecystitis did not have increased morbidity, but had significantly longer hospital stay. Conclusion: Laparoscopic cholecystectomy can be carried out with acceptable morbidity in selected patients with well‐compensated Child A and B stages liver cirrhosis. Patients with evidence of significant portal hypertension and severe coagulopathy should avoid surgery. 相似文献
To translate the Core Outcome Measures Index (COMI) into Simplified Chinese and then validate it for Mainland Chinese patients with low back pain (LBP).
Methods
A total of 120 consecutive patients with LBP >3 months who visited our outpatient clinic from December 2011 to March 2012 were asked to complete a questionnaire booklet including the following: (1) the Roland Morris disability questionnaire (RMQ) (Fan et al. in Spine 37(10):875–880, 2012), (2) the Short Form Health Survey (SF-36) (Zhang et al. in Int J Med Sci 9(7):521–526, 2012), (3) the Oswestry Disability Index (ODI) (Liu et al. in Spine 34(11):1211–1216, 2009), (4) visual analogue scale (VAS) measure of pain, and (5) COMI. These patients were also asked to complete a second COMI questionnaire and a transition questionnaire (5-point Likert scale: better, a little better, no change, a little worse, worse) and to return the second COMI questionnaire via mail within 1 month.
Results
The floor effects for the COMI items ranged from 5.8 to 12.5 %. High values (28.3, 27.5, and 25.8 %, respectively) were found for symptom-specific quality of life, social disability, and work disability. Regarding the ceiling effects, the social and work disabilities were relatively high at 17.5 and 24.2 %, respectively. For other items, the values ranged from 0 to 14.2 %. Neither floor nor ceiling effects were found for the COMI summary score. Excellent correlations were found between the COMI pain scores and VAS scores (Rho = 0.89) and between the COMI pain and the SF-36 bodily pain domain (Rho = 0.84). Other individual items and summary scores showed a very good correlation (Rho = 0.54–0.72) with the corresponding questionnaires except for “symptom-specific well-being” (0.31–0.45). One-way repeated measures ANOVA was used to determine the intraclass correlation coefficient (ICC). The ICC for the entire COMI score was 0.91 (95 % CI 0.85–0.94) and 0.81–0.86 for the two pain scores (back and leg). The “minimum detectable change’’ (MDC 95 %) for the COMI summary score was 1.91 points. No significant difference in the mean values was found for the repeated scores of individual items or the summary score.
Conclusion
The Simplified Chinese version of COMI showed satisfactory reliability and good psychometric properties. This concise questionnaire is suitable for widespread use in Mainland China. 相似文献
OBJECTIVE: Our aim was to validate Spanish and Catalan versions of the Liver Disease Quality of Life questionnaire (LDQOL) for use in liver transplant patients. METHODS: The LDQOL consists of the SF-36 generic measure of health-related quality of life (HRQOL) and 12 disease-specific dimensions for liver disease patients. The Spanish and Catalan versions of the questionnaire were administered to 138 patients with a liver transplant. Cronbach's alpha coefficients (CAC) were used to test the internal consistency of disease-specific scales. Test-retest reliability was calculated using the Intraclass Correlation Coefficient (ICC) in a sub-group of 41 patients who completed the questionnaire on two occasions 1 to 2 weeks apart. Validity was analysed by determining the instrument's capacity to discriminate between patient groups classified according to years since transplant, disease etiology, and symptom severity. Ceiling and floor effects were also calculated. RESULTS: Internal consistency in the disease-specific dimensions was acceptable or good (CACs 0.60-0.97), as was test-retest reliability in all dimensions (statistically significant CCIs of 0.62-0.89), except the symptoms dimension (CCI=0.46, P<.05). Few differences were found in disease-specific dimension scores between patients classified according to number of years since transplant or etiology, but differences were found in some dimensions according to symptom severity. Moderate to severe ceiling effects were found in several disease-specific dimensions. CONCLUSIONS: The Spanish and Catalan versions of the LDQOL may be useful for measuring HRQOL in this population, though it will be important to investigate further the instrument's sensitivity to change. 相似文献
The objective of this study was to validate the German translation of the International Index of Erectile Function (IIEF). The IIEF was administered to 59 patients with erectile dysfunction (ED), to 38 patients with Peyronie's disease and to 33 controls. All patients were investigated by standardized German versions of international questionnaires of anxiety, depression, social desirability, quality of partnership, physical complaints and life-satisfaction. The five subscales of the English version, however, could not be replicated. Internal consistency for the complete questionnaire of 15 items was high (Cronbach's alpha=0.95). Based on the total scale and two subscales, we were able to discriminate sexual function between the ED group and the comparison groups. There was no significant correlation between the IIEF scores and anxiety, depression, somatic complaints and life-satisfaction. The German version of the IIEF has found good comprehension, and acceptance by the majority of patients. Its use is somewhat limited by its focus on sexual activity in partnership. In contrast to the English version, it mainly addresses a single factor of sexual function. 相似文献
BACKGROUND: The safety of laparoscopic cholecystectomy (LC) has been proven in patients with several pre-existing clinical conditions. This study was conducted to evaluate the applicability and safety of elective LC in patients with pre-existing cardiovascular conditions who were receiving anticoagulant treatment. PATIENTS AND METHODS: Between January 1998 and December 2002, 33 patients preoperatively receiving long-term anticoagulant therapy for pre-existing disease were scheduled to undergo elective LC for symptomatic gallstone disease in our laparoendoscopic unit. The study group included 19 patients with one valve replacement (57.6%), 1 patient (3%) with two valves replaced, and 1 patient (3%) with three cardiac valves replaced. There were also 9 patients (27.3%) suffering from chronic atrial fibrillation, 1 patient (3%) with a history of deep vein thrombosis, 1 patient with a history of pulmonary embolism, and 1 patient with dilated cardiomyopathy and systemic lupus erythematosous (SLE). Thirty-three non-anticoagulated patients matched for age and sex who were scheduled for elective LC in our department during the same period served as the control group. RESULTS: There was no intraoperative or postoperative mortality or morbidity in our series. The mean duration of the LC did not differ significantly between the anticoagulated and control groups (63.6 minutes vs. 64.9 minutes, P=0.643). All anticoagulated patients were mobilized by postoperative day 1 and were discharged from the hospital in a mean 3.6+/-0.8 days (median, 3 days; range, 3-6 days) after an uneventful postoperative course. The length of stay was significantly longer in the anticoagulated group of patients (3.6 days vs. 1.5 days in the control group, P<0.001). CONCLUSION: Elective LC can be performed safely in patients under anticoagulant therapy for severe pre-existing cardiovascular disease, as long as their cardiopulmonary and coagulation parameters are carefully individualized and adjusted. 相似文献
目的测评中文版乳腺癌患者性调节和身体意象量表(Sexual Adjustment and Body Image,SABIS)的信效度。方法运用中文版SABIS对90例乳腺癌患者进行调查,并对其中的30例患者于2周后重测。采用t检验、相关性分析和因子分析检验量表的信效度。结果中文版SABIS中性调节量表的Cronbach′sα系数0.73,3个因子的累积贡献率为81.79%;身体意象的Cronbach′sα系数0.70,2个因子的累积贡献率为71.37%。结论中文版SABIS具有良好的信效度,可在临床中用于乳腺癌患者术后的性调节与身体意象评估。 相似文献
To translate and cross-culturally adapt the Core Outcome Measures Index (COMI) into the Korean language and to test the psychometric properties of the Korean COMI in patients with degenerative lumbar spine diseases.
Methods
A cross-cultural adaptation of the COMI into Korean was carried out using established guidelines. A total of 117 patients with lumbar spinal diseases were recruited from the spinal center of a tertiary care teaching institution and completed a baseline questionnaire including the newly translated COMI, the visual analog scale for back pain and for leg pain, the Oswestry Disability Index (ODI), and the EuroQOL-5 dimensions (EQ-5D). Within 2 weeks after the first assessment, 83 (71%) completed a second COMI questionnaire and a transition question (no change, slight change, moderate change, a lot of change) by phone to assess reproducibility.
Results
COMI summary scores displayed 1.7% floor effects and no ceiling effect. For construct validity, each COMI item and COMI summary score well correlated with its corresponding reference questionnaire. Therefore, the predefined hypotheses for the construct validities of each COMI item (ρ?>?0.4 with the corresponding questionnaire) and the COMI summary score (ρ?>?0.6 with both ODI and EQ-5D) were confirmed. Intraclass correlation coefficients of each COMI item and summary score ranged from 0.93 to 0.98. Therefore, the hypothesis for reliability (ICC?>?0.8) was confirmed.
Conclusions
The present study highlights that the Korean version of the COMI is a reliable and valid outcome tool for use in Korean-speaking patients with degenerative lumbar spinal disease.
Graphical abstract
These slides can be retrieved under Electronic Supplementary Material.
BACKGROUND: Disease specific, health-related quality of life (HRQoL) measurement is important in cystic fibrosis (CF). This work aimed to translate the original English Cystic Fibrosis Quality of Life Questionnaire (CFQoL) into Italian, evaluate the linguistic translation and to psychometrically evaluate the Italian version of the CFQoL. METHODS: The linguistic translation followed the international guidelines of forward and backward translation. Psychometric evaluation of the Italian CFQoL involved the assessment of construct validity, internal reliability, concurrent validity, known groups validity and test-retest reliability. RESULTS: The instrument was acceptable to adolescents and adults with CF and demonstrated robust psychometric properties. Principle components analysis indicated that the factorial structure was essentially similar to the original, and the internal reliability of each domain was good (Cronbach alpha coefficients 0.73 to 0.91). Appropriate domains of the CFQoL and SF-36 correlated well indicating good concurrent validity (r=0.68-0.80). Consistent with theoretical expectations some domains were able to discriminate between disease severity groups. Test-retest reliability, assessed by intraclass correlation coefficients, was found to be excellent (ICC 0.83 to 0.98). CONCLUSIONS: The Italian CFQoL is a valid and reliable measure. Its use in individual patient monitoring and research should complement traditional clinical outcome measures. 相似文献
BackgroundThe revised Foot Function Index (FFI-R) is a multidimensional instrument that was developed to assess a patient’s self-reported health-related foot function. The FFI-R is clinically useful and easy to apply, and it has comprehensive subscales assessing the pain, stiffness, psychosocial stress, disability, and activity limitations related to foot and ankle problems. The present study was conducted to validate the Turkish version of the FFI-R, and to demonstrate its use in a Turkish population with various foot and ankle problems.MethodsThe English version of the FFI-R was translated into Turkish, and then, it was administered to 124 patients (mean age of 39.9 years old) with foot and ankle problems and a mean symptom duration of 7.9 months. These patients completed two well-established foot and ankle-specific patient-reported outcome measures, the Foot and Ankle Outcome Score (FAOS) and the Manchester-Oxford Foot Questionnaire (MOX-FQ), and a general instrument, the 36-item Short Form Health Survey (SF-36). The test-retest reliability was evaluated using the intraclass correlation coefficient, and the internal consistency was measured using Cronbach’s alpha. The construct validity of the FFI-R was assessed by correlating its subscales with the FAOS, MOX-FQ, and SF-36 subscales.ResultsThe test-retest reliability of the FFI-R ranged between 0.84 and 0.97. The internal consistency was 0.97 for the overall FFI-R, and it ranged between 0.85 and 0.97 for the subscales. Significant correlations were obtained between the FFI-R subscales and the FAOS, MOX-FQ, and SF-36 subscales.ConclusionsThe Turkish version of the FFI-R was found to be a reliable and valid instrument for measuring the foot and ankle-related functional disability and health status of Turkish patients with foot and ankle problems. 相似文献
Endoscopic retrograde cholangiopancreatography (ERCP) has been used in patients referred for cholecystectomy when clinical information, biochemical values, or ultrasonography (clinical characterization) have indicated possible presence of common bile duct stones. A retropective study of 599 patients treated for gallstone disease was used to develop a characterization procedure for predicting common bile duct stones by a discriminant analysis procedure. The variables selected by the analysis as the best combination for CBDS prediction were age (years), the values of bilirubin (micromol/I), ALAT (U/I) and gamma GT (U/I). The characterization was false positive in 22 cases (3.7%) and false negative in 11 cases (1.8%), compared to 198 false positive cases (33.1%) and three false negative cases (0.5%) by the clincal characterization. A leaving-one-out correction did not change the results. In a test set of 157 cholecystectomy patients, clinical characterization was false positive in 44.6% of the patients, compared to 4.5% false positive results when using the discriminant analysis procedure. The discriminant analysis procedure would have missed one patient with common bile duct stones. Selection by the discriminant analysis characterization procedure seems to reduce the frequency of preoperative ERCP significantly without an inerease in undetected common bile duct stones.
Resumen La colangiopancreatografia endoscópica retrógrada (CPER) ha sido utilizada en pacientes referidos para colecistectomía cuando la información clínica, los exámenes bioquímicos o la ultrasonografia indicaban la posible presencia de cálculos en el colédoco. Se hizo un estudio retrospectivo de 599 pacientes tratados por enfermedad biliar con el propósito de desarrollar un procedimiento de caracterización que permitiera predecir la presencia de cálculos en el colédoco por un proceso de análisis discriminado. Las variables seleccionadas para el análisis como mejores factores de predicción de cálculos en el colédoco fueron la edad (años), los niveles de bilirrubina (micromol/l), la ALAT (U/l) y la GT gama (U/I). La caracterización resultó positiva falsa en 22 casos (3.7%) y negativa falsa en 11 casos (1.8%), frente a 198 casos positivos falsos (33.1%) y 3 negativos falsos (0.5%) en la caracterización clinica. Las correccìones estadísticas no cambiaron los resultados. En un grupo de prueba de 157 pacientes sometidos a colecistectomia, la caracterización clínica fue positiva falsa en 44.6% de los pacientes, frente a 4.5% resultados positivos falsos al usar el procedimiento de análisis discriminado. El procedimiento de analisis discriminado habria fallado en 1 paciente con cálculos en el colédoco. La selección mediante el procedimiento de caracterización por análisis discriminado parece reducir la frecuencia de CPER en forma significativa sin aumentar el número de casos no detectados de cálculos en el colédoco.
Résumé La cholangiopancréaticographie endoscopique rétrograde est indiquée dès lors que les données cliniques, biochimiques ou échographiques sont en faveur d'une éventuelle lithiase de la voie biliaire principale (VBP). Une étude r'etrospective de 599 patients traités pour maladie lithiasique a permis de développer un moyen de prédiction de lithiase de la VBP par analyse discriminante. Les variables les plus utiles pour prédire la présence d'une lithiase de la VBP étaient l'âge (ans), les valeurs de bilirubine (micromol/l), des ALAT (U/L) et des gamma GT (U/I). Il y a 22 faux positifs (3.7%) et 11 faux négatifs (1.8%) dans ce système de discrimination, comparés à 198 faux positifs (33.1%) et trois faux négatifs (0.5%) lorsque la discrimination était clinique. La correction par élimination d'une variable n'a pas changé les résultats. Chez un sous-groupe de 157 patients ayant eu une cholécystectomie, l'utilisation des seules données cliniques a produit 44.6% de faux positifs contre 4.5% de faux positifs en cas d'analyse discriminante. L'analyse discriminante aurait méconnu un patient avec une lithiase de la VBP. La sélection par l'analyse discriminante semble réduire la nécessité de CPRE sans augmenter la fréquence de lithiase de la VBP méconnue.
The purpose of this study was to compare length of stay, as one of the efficacy indicators, and effectiveness, in terms of operative complications and mortality, between laparoscopic (LC) and open cholecystectomy, and to verify the 10-year temporal trends in the application of the LC technique in a large regional population.
Methods
This was a retrospective cohort study based on 73,853 hospital discharge records of cholecystectomies for gallstone disease (GD) in residents of the Veneto from 2001 to 2010, at both public and accredited private hospitals. The data are from a regional administrative database. The main epidemiological rates calculated, and expressed per 100,000 residents, were the cholecystectomy rate (CR) for gallstones by surgical technique (laparoscopic or open surgery), and the in-hospital mortality rate (MR), considered as the in-hospital MR regardless of the specific cause of death.
Results
The CR was 139.7 higher in females, with a male-to-female ratio of 1:1.5. LC was performed more frequently in females than in males and in younger than in older patients. From 2001 to 2010, there was a significant linear rising trend in the use of LC, in fact during the period considered, the use of laparoscopic surgery increased significant (χ2 trend: 316,917; p < 0.05), reaching 93.6 % of surgical procedures for gallstones during the year 2010.
Conclusions
There are still some age- and gender-related disparities in its usage, although LC is an increasingly widely applied, as effective procedure. 相似文献
Vertebral fractures may be minor or lead to pain, decreased physical function, immobility, social isolation and depression,
which together contribute to quality of life. A Working Party of the European Foundation for Osteoporosis has developed a
specfic questionnaire for patients with vertebral fractures. This questionnaire, QUALEFFO, includes questions in the domains
pain, physical function, social function, general health perception and mental function. QUALEFFO was validated in a multicenter
study in seven countries. The study was done in 159 patients aged 55–80 years with clinical osteoporosis, i.e., back pain
and other complaints with at least one vertebral fracture and lumbar bone mineral density T-score <−1. Patients with a recent vertebral fracture were excluded because of unstable disease. Controls were age- and sex-matched,
and did not have chronic back pain or vertebral fractures. Subjects with conditions exerting a major influence on quality
of life were excluded. The QUALEFFO was administered twice within 4 weeks and compared with a generic questionnaire, the Short
Form 36 of the Medical Outcomes Study (SF-36). Standard spinal radiographs were made for assessment of vertebral height. Seven
questions were removed from the analysis because of low response rate, linguistic ambiguities or redundancy. The 41 remaining
questions were analyzed for repeatability, internal consistency and the capacity to discriminate between patients with vertebral
fractures and controls. Comparison with the SF-36 was performed within similar domains by conditional logistic regression
and by receiver operating characteristic (ROC) curves. The repeatability of QUALEFFO was good (kappa statistics 0.54–0.90)
and 26 of 41 questions had a kappa score ≥0.70. The internal consistency of the five domains was adequate, with Crohnbach
α around 0.80. All except five questions discriminated significantly between patients and controls. The median scores of QUALEFFO
were significantly higher in patients with vertebral fractures than in controls in all five domain (p<0.001), which is consistent with decreased quality of life in patients with osteoporosis. Spinal radiographs were assessed
using the McCloskey–Kanis algorithm. According to this, 124 patients (78%) had vertebral fractures of ≥3 SD severity, in contrast
with 7 controls (4%). Significant correlations existed between scores of similar domains of QUALEFFO and the SF-36, especially
for pain, physical function and mental function. All five domains within each questionnaire discriminated significantly between
fracture cases and controls. The odds ratios for pain and social function were greater for QUALEFFO, while general health
perception was more discriminating using the SF-36. The ROC curve analysis of QUALEFFO indicated that all five domains were
significantly predictive of vertebral fractures. When comparing similar domains of the two questionnaires, QUALEFFO domains
demonstrated significantly better performance for pain, physical function and social function. The QUALEFFO total score and
SF-36 physical composite score showed similar performance. In conclusion, QUALEFFO is repeatable, coherent and discriminates
well between patients with vertebral fractures and control subjects. The results of this study confirm the decreased quality
of life in patients with vertebral fractures.
Received: 4 August 1998 / Accepted: 28 December 1998 相似文献
The Gastrointestinal Quality of Life Index (GIQLI) is a disease-specific quality of life instrument that is commonly used in gastrointestinal disorders. However, no preference weights, which are used to calculate quality-adjusted life years for cost-effectiveness analyses, for this instrument have been assigned. Therefore, the objective of this study was to develop a mapping function to derive utility scores for the GIQLI.
Methods
Patients undergoing elective laparoscopic cholecystectomy completed the short-form 6D (SF-6D), a preference-weighted utility measure, and the GIQLI at baseline and at 1 wk and 1 mo postoperatively. The responsiveness of the SF-6D to expected postoperative changes as well as the correlation between the SF-6D and the GIQLI was investigated. Ordinary least squares regression was performed to derive a mapping function using the baseline values, which was then validated using postoperative values. Adjusted r2, mean absolute error, and root mean square error was used to determine model performance.
Results
A total of 50 patients were included in the study (mean age 51.1 [standard deviation 16.8], 28% male). The SF-6D and GIQLI domains were responsive to expected postoperative changes, and there was high correlation between the SF-6D and four of the five GIQLI domains (excluding treatment effects). The final mapping function explained 63% of the variance in the derivation sample but had relatively high mean absolute error (0.075 and 0.067 in the 1-wk and 1-mo samples, respectively) and adjusted root mean square error (13.1% and 12.0% in the 1-wk and 1-mo samples, respectively).
Conclusions
The GIQLI can be accurately mapped to SF-6D preference weights at the group level but may be too inexact at the individual level. 相似文献
The natural history of gallstone disease in 691 patients, followed for a mean +/- SD duration of 78 +/- 61.6 months (median 62.9 months), is presented. These patients are all subscribers of a large health maintenance organization and are believed to represent a cross-section of middle income Americans. Symptoms attributed to biliary tract disease were present in 556 (80.5%), and the other 135 (19.5%) patients were asymptomatic. In the symptomatic group, the mean +/- SD duration of observation was 82.9 +/- 63.2 months (median 68.5 months); 242 (44%) eventually underwent biliary tract operations most often because of persistent symptoms. Only 10% of asymptomatic patients followed for 58 +/- 50.2 months (median 46.3 months) developed symptoms of biliary calculi, and seven per cent required operations. There were 50 deaths in this series of 691 patients, 25 in the symptomatic group, and 25 in the asymptomatic. Only two of these deaths were biliary tract related, and both were in the symptomatic group. This study suggests that patients with silent stones do not need to be operated on prior to the development of symptoms. In addition, many patients with symptoms of biliary calculi can tolerate their symptoms for long periods of time and prefer this course of action to cholecystectomy. 相似文献
To translate, cross-culturally adapt, and validate the Croatian version of the Oswestry Disability Index (ODI).
Methods
The original English-language ODI was cross-culturally adapted into Croatian and then evaluated in a group of 114 patients with chronic low back pain (LBP) at the Department of Neurosurgery, Zagreb University School of Medicine. Confirmatory factor analysis (CFA) was conducted with three models: two were theory driven (unidimensional and two dimensional—static and dynamic factors); the other was based on our exploratory factor analysis (EFA). Internal consistency and test–retest reliability were evaluated using Cronbach’s α and the intraclass correlation coefficient (ICC), respectively. Construct validity was assessed by evaluating the correlation between the ODI and Visual Analogue Scale (VAS), and between the ODI and 36-item short form survey (SF-36) scores.
Results
The EFA-derived two-dimensional structure explained 82.7% of the total variance and was significantly better than the other models (P?<?0.001); however, none of the models had acceptable fit. Internal consistency (Cronbach α?=?0.84) and test–retest reliability (ICC?=?0.94) were satisfactory. The ODI was positively correlated with VAS (rs?=?0.54, P?<?0.001) and negatively correlated with all of the SF-36 sections (rs?=???0.35 to ??0.64, P?<?0.001, all), apart from the role-physical (rs?=???0.02, P?=?0.767).
Conclusions
The Croatian version of the ODI has acceptable psychometric properties. It appears to be suitable for assessment of LBP and treatment outcomes in Croatian-speaking patients. Overall, there was no evidence to reject the original unidimensional structure in favor of a two-factor solution. As such, the unidimensional structure should continue to be used in future studies.
Graphical abstract
These slides can be retrieved under Electronic Supplementary Material.
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