In oa research, the womac was developed as an oaspecific measure of disability. An important aspect of the utility of any outcome measure is the availability of responder definitions and cutoff points and that these are appropriately validated. With regard to womac, in brazil, it can be seen that there is a need for this tool to be used more widely in studies evaluating healthrelated quality of life among patients who undergo total hip arthroplasty, given that in comparison with sf36, womac has higher sensitivity. Clinically important improvement in the womac and predictor.
Western ontario and mcmaster universities osteooarthritis index. Please enter your personal details first name, last name, and email address are required. The 92% of knees that were not considered treatment failures experienced statistically significant changes in womac pain and function scores from baseline to followup that exceeded the definition of minimal clinically important difference table 74. Hip disability and osteoarthritis outcome score womac. The western ontario and mcmaster universities osteoarthritis index womac. Patientcentered outcomes were collected by a questionnaire including the womac likert 3. The use and reporting of womac for the assessment of. Womac osteoarthritis indexadditional dimensions for use.
The womac is a widely used selfadministered health status measure used in assessing pain, stiffness, and function in patients with oa of the hip or knee. Randomized controlled trials strand and kelman 25 responses to treatment and diseas e activity, a mean score of all individual endpoints, and total womac. For each situation, please enter the amount of pain you have experienced in the past 48 hours. To assess validity and reliability of the western ontario and mcmaster universities womac osteoarthritis oa index and lequesne algofunctional index in turkish patients with hip or knee oa and to compare the results of the instruments for these two particular sites of involvement. The womac is a multidimensional selfadministered outcome measure. The western ontario and mcmaster universities arthritis index womac is. Womac is listed in the worlds largest and most authoritative dictionary database of abbreviations and acronyms the free dictionary. Please answer each question by checking the one statement that best describes you over the last 1 to 2 days. Womac has been used extensively in research studies, undergone rigorous psychometric validation, and is frequently utilized in many clinical trials. Reliability and validity of the western ontario and mcmaster. Knee outcome survey activities of daily living scale instructions. Thus, a hoos survey may also be used to determine a womac score. Download pdf, 48kb the auscan index is a diseasespecific, tridimensional selfadministered questionnaire, for assessing health status and health outcomes in. Materials and methods the scale the womac oaindex9 is a selfadministered composite.
Pdf the use and reporting of womac in the assessment of the. Although the western ontario and mcmaster university osteoarthritis index womac is considered the leading outcome measure for patients with osteoarthritis of the lower extremity, recent work has challenged its factorial validity and the physical function subscales ability to detect valid change when pain and function display different profiles of change. Sep 01, 2009 description the womac was developed in the early 1980s as a diseasespecific measure for hip and knee osteoarthritis bellamy 2009. A popular patientreported outcome measure prom used for evaluation with hip and knee osteoarthritis is the western ontario and mcmaster universities osteoarthritis index womac. The severity of the subjective symptoms and disabilities drives the patient to seek medical help and has a major influence on treatment and intervention, despite objective findings such as alterations on a radiograph, for example, in a knee affected by. The measure was developed to evaluate clinically important, patient. Accepted outcome measures in randomized controlled trials rcts in osteoarthritis oa include patientreported assessments of physical function and healthrelated quality of life hrqol. Pdf the use and reporting of womac in the assessment of. Womac and lequesne showed moderategood correlations between comparable subscales of sf36 physical functioning and bodily pain and weakmoderate correlations between vas. Validation of a proposed womac short form for patients with. This can include osteoarthritis, inflammatory disorders and musculoskeletal. The womac index has been used extensively in clinical trials, and has generally been shown to exhibit greater or comparable responsiveness to change than other tests. It was designed to provide a standardised assessment of selfreported health status while incorporating activities relevant to patients.
A comment on this article appears in patientreported outcome measures in arthroplasty registries report of the patientreported outcome measures working group of the international society of arthroplasty registries part ii. Western ontario and mcmaster universities osteoarthritis. The western ontario and mcmaster universities osteoarthritis index womac name. Mcid the minimal clinically important difference assigns. Clinically important improvement in the womac and predictor factors for response to nonspecific nonsteroidal antiinflammatory drugs in osteoarthritic patients. At the 3month and 6month followup assessments, the womac was administered through telephone interviews. These details will be sent to dr bellamy who will respond to your request in due course. The western ontario and mcmaster universities osteoarthritis index womac has been a widely used patient reported outcome in oa. Furthermore, the womac has been used as an outcome measure in. Assessment and comparison of responsiveness of four. A comparative study of the relative efficiency of the womac, aims and haq instruments in evaluating the outcome of total knee arthroplasty. As younger patients have different goals, expectations and quality of life benchmarks posttreatment, it was felt that a reporting measure with these concerns in mind would be more representative than many of.
The utility of outcome measures in total knee replacement. Western ontario mcmaster university osteoarthritis index rheumatology an arthritic pain scoring system ranging from 0no paindisability to 100most severe paindisability. This varies, however, for different subscales and types of interventions. The womac was developed in the early 1980s as a diseasespecific measure for hip and knee osteoarthritis bellamy 2009. Translation, adaptation and validation of the western ontario. Translation, adaptation and validation of the western.
Womac questionnaire information linkedin slideshare. Validity, reliability, and comparison of the womac. Does parallel item content on womacs pain and function. The five point likert version9 of the womac was used. The western ontario and mcmaster universities arthritis index womac is widely used in the evaluation of hip and knee osteoarthritis. Testretest reliability of the womac and lequesne subscales yielded iccs of 0. Modelling the relationship between the womac osteoarthritis. Apr 30, 2010 the western ontario and mcmaster universities osteoarthritis index womac has been a widely used patient reported outcome in oa. How physical function is assessed for osteoarthritis. The western ontario and mcmaster universities osteoarthritis index.
If the activity in question is limited by something other than your hip, mark not applicable na. Assessment and comparison of responsiveness of four patient. Extended report satisfactory cross cultural equivalence of. Trials that used the womac outcome were examined for correct use and clear reporting of the womac pain subscale and the womac index. Sep 21, 2011 the womac has been translated into spanish and validated in spain 810. The knee injury and osteoarthritis outcome score koos is an extension of the western ontario and mcmaster universities osteoarthrtis index womac, the most commonly used outcome instrument for assessment of patientrelevant treatment effects in osteoarthritis. The womac index is a diseasespecific, tridimensional selfadministered questionnaire, for assessing health status and health outcomes in osteoarthritis of the knee andor hip. The womac scale was designed to measure dysfunction and pain associated with oa of the lower extremities by assessing 17 functional activities. Quality of life has multiple dimensions, and in recent years, researchers and clinicians have produced several generic and diseasespecific questionnaires to. Womac oa index17,18, which is recommended by the outcome measures in rheumatoid arthritis clinical trials omeract19,20. At medical school we were taught that 7080% of the information that leads to diagnosis comes from the patients anamnesis.
Please rate the activities in each category according to the following. The womac has also been used to assess back pain, rheumatoid arthritis, juvenile rheumatoid arthritis, systemic lupus erythematosus, and fibromyalgia. The aims2 is a revision of the aims,20 a widely used, well tested, and highly recommended outcome measure for arthritis research. Pdf validation of the shortform womac function scale for the. Economic evaluation typically is conducted using health state utilities to estimate treatment benefits. The womac questionnaire was administered through facetoface interviews at baseline and at hospital discharge. Jan 23, 2012 the aims of the present study were first to detect mcid for womac in a moroccan population, and second, to identify the best pretreatment predictors on the change of health after treatment by nonspecific, nonsteroidal antiinflammatory drugs nsaids, and to evaluate whether the predictors were dependent on the choice of the response criterion. Womac is listed in the worlds largest and most authoritative dictionary database of abbreviations and acronyms. We adapted the womac for the italian language and tested its metric properties in 304 patients with symptomatic oa of the knee. Available data can inform treatment decisions when statistically significant changes are viewed in terms of clinically important improvements. However, such outcomes are often missing from studies of clinical effectiveness. Looking for online definition of womac or what womac stands for. Reliability and validity of the western ontario and. A comment on this article appears in good validity and reliability of.
Translation, adaptation and validation of the western ontario and mcmaster universities osteoarthritis index womac for an arab population. Oct 31, 20 womac scores can also be derived from the koos. Koos was developed for younger andor more active patients with knee injury and knee osteoarthritis and has in previous. Womac into arabic and to validate the arabic version of the index for tunisian patients with knee oa. It is a selfadministered questionnaire consisting of 24 items divided into 3 subscales. The womac index is a diseasespecific, tridimensional selfadministered questionnaire, for assessing health status and health outcomes in osteoarthritisof the knee andor hip.
Validation of a proposed womac short form for patients. It is a brief, multidimensional instrument for the standardised asses sment of treatment. Selfreported outcomes of patients undergoing total hip. Many people suffer with osteoarthritis oa and subsequent morbidity. A womac test takes about 12 minutes, but is also available in a short form, although this has not been as extensively tested as the full version. In 1994 a consensus meeting recommended the use of womac as a primary measure of efficacy in oa. The arthritis impact measurement scale aims measures physical, social, and emotional wellbeing along nine dimensions, including dexterity, mobility, pain, physical and social activity, and depression and anxiety. For the purposes of metaanalysis and network metaanalysis, the use of standard outcome measures is ideal. Hip outcome score hos patientreported outcome measure. The questionnaire contains 24 questions, targeting areas of pain. Patientreported outcomes validated in oa include global. In 2006, the hip outcome survey hos was developed to help address this issue. Pdf womacpf as a measure of physical function in patients with.
Physical functioning questions cover everyday activities such as stair use, standing up from a sitting or lying position, standing, bending, walking, getting in and out of a car, shopping, putting on or taking off socks, lying in bed. Although physical function is one of the core outcome domains in knee osteoarthritis oa, the ability of a measurement instrument to detect changes over time in the construct physical function being measured, i. Koos was developed for younger andor more active patients with knee injury and knee osteoarthritis and has in previous studies on. This study aims to bridge that gap by providing appropriate methods to link values from the western ontario and mcmaster universities osteoarthritis index womac to the eq5d utility instrument. The brief treatment outcome measure btom was developed for the routine measurement of treatment outcome for clients receiving opioid maintenance pharmacotherapy omp services and for use in treatment evaluation research. The womac index is a diseasespecific, tridimensional self administered questionnaire, for assessing health status and health outcomes in osteoarthritis of the knee andor hip. Please rate the activities in each category according to the following scale of difficulty. Mar 12, 2014 economic evaluation typically is conducted using health state utilities to estimate treatment benefits. The western ontario and mcmaster universities osteoarthritis index womac is a widely used measure of symptoms and physical disability originally developed for people with osteoarthritis oa of the hip andor knee 1, 2.
The utility of outcome measures in total knee replacement surgery. Western ontario and mcmaster universities osteooarthritis. Request further information please complete the following form to request further information. The following questionnaire is designed to determine the symptoms and limitations that you experience because of your knee while you perform your usual daily activities. The measure was developed to evaluate clinically important, patientrelevant changes in health status resulting from. Rasch analysis of the western ontario macmaster questionnaire. In sections a, b, and c, questions will be asked about your hip or knee pain. The proportion of trials, for which assumptions had to be made in order to reach a conclusion regarding the type of scale and the score range used, was calculated. An extension of the western ontario and mcmaster universities osteoarthritis index. The womac measures five items for pain score range 020, two for stiffness score range 08, and 17 for functional limitation score range 068. Along with the surveys that are used to determine a patients. The following questions concern the amount of pain you are currently experiencing in your knees. The mean effects measured by womac of the slightly better group and the no change group was defined as the mcid of improvement on the womac global score 6,7,9,10. Roos em, roos hp, lohmander ls, ekdahl c, beynnon bd.
In the roc analysis, the area under the curve auc is a measure of diagnostic accuracy, i. Tom minas md, ms, in a primer in cartilage repair and joint preservation of the knee, 2011. If you are unsure about how to answer a question, please give the best answer you can. The questions on the womac are a subset of the questions of the hip disability and osteoarthritis outcome score hoos. We expect that the translated and adapted version should suit other arab populations because of their similar language and culture. Mcmaster osteoarthritis index womac please circle the. The total womac score at the 6week followup minus the score at baseline examination prior to the treatment defined the effect measured by womac. The incredible ibex defies gravity and climbs a dam forces of nature with brian cox bbc duration.
Knee injury and osteoarthritis outcome score koosdevelopment of a selfadministered outcome measure. Recommendations for selection, administration, and analysis. Figure 2 infit mnsq statistics for womac functional scale items. It is increasingly recognized that a key outcome measure for any healthcare intervention for oa, as for many other conditions, is a change in healthrelated quality of life hrqol8, 9. Therefore, measuring outcome associated with oa is important. Musculoskeletal msk pain is the single greatest cause of years lived with disability. As younger patients have different goals, expectations and quality of life benchmarks posttreatment, it was felt that a reporting measure with these concerns in mind would be more representative than many of the preexisting surveys. We aimed to explore the internal validity and responsiveness of this vas version of the womac. Questionnaire womac in 2205 patients with osteoarthritis. The western ontario and mcmaster universities womac osteoarthritis oa index is a tested questionnaire to assess symptoms and physical functional disability in patients with oa of the knee and the hip. The womac has also been used to assess back pain, rheumatoid arthritis, juvenile rheumatoid arthritis, systemic lupus. The musculoskeletal health questionnaire msk hq is a patient reported outcome which has been developed to assess outcomes in patients with a variety of musculoskeletal conditions.
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