Reliability and validity of the Western Ontario and McMaster Universities (WOMAC) Osteoarthritis Index in Italian patients with osteoarthritis of the knee
Abstract:The Italian version of WOMAC is a reliable and valid instrument for evaluating the severity of OA of the knee, with metric properties in agreement with the original, widely used version.
“…[31][32][33][34][35][36][37] The ICC for pain, stiffness, and physical function subscales were more than 0.96, which could be considered near to totally reliable. Similar results were reported for the German, 38 Swedish, 39 and the Italian 40 languages versions.…”
“…[31][32][33][34][35][36][37] The ICC for pain, stiffness, and physical function subscales were more than 0.96, which could be considered near to totally reliable. Similar results were reported for the German, 38 Swedish, 39 and the Italian 40 languages versions.…”
“…Further, scores on the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) pain scale [4] are confounded by physical functioning (the scale asks about pain experienced with specific activities). Thus, WOMAC pain and physical function scores are highly correlated [41]. Together, these studies suggested the need for a new OA pain measure.…”
Section: Patient Perceptions Of Pain From Oamentioning
“…In present study WOMAC score had a direct correlation and significant difference in various K-L grades (r=0.872, P<0.001). Inoue et al [18] and Salaffi et al [20] also reported the positive correlation between WOMAC score and K-L grading. In present study Significantly higher mean sHA levels were found among the cases as compared to controls (P <0.001).…”
Objective: To investigate relationship between serum hyaluronic acid (sHA) level and the presence and severity of radiographic knee osteoarthritis (OA) as well as degree of knee pain. Design: A total of 150 subjects (75 controls and 75 cases) were enrolled in this study. Based on the Kellgrene Lawrence (K-L) grade, participants were radiographically classified into three groups: mild (K-L grade1 & 2), moderate (K-L grade 3) and severe (K-L grade 4). The degree of knee pain was quantified by WOMAC knee pain score. sHA levels were compared among the controls & cases and with radiological grading. In addition, the correlation between sHA level and the degree of knee pain was analyzed in each group. Results: In relationship between sHA level and the severity of radiographic knee OA, sHA level of the case group was significantly higher than in the normal group (P< 0.001). Furthermore, sHA level correlated with the severity of radiographic knee OA (r = 0.880). sHA level had positive correlation and significant association with WOMAC knee pain in study groups. (r = 0.750, P<0.001) Conclusion: sHA level has the potential to be useful for the diagnosis and prognosis of the severity of primary knee OA.
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