TY - JOUR
T1 - The Italian version of the Lower Extremity Functional Scale was reliable, valid, and responsive
AU - Cacchio, Angelo
AU - De Blasis, Elisabetta
AU - Necozione, Stefano
AU - Rosa, Francesco
AU - Riddle, Daniel L.
AU - di Orio, Ferdinando
AU - De Blasis, Domenico
AU - Santilli, Valter
PY - 2010/5
Y1 - 2010/5
N2 - Objective: To determine the measurement properties of an Italian Version of the Lower Extremity Functional Scale (LEFS) in patients with lower extremity musculoskeletal dysfunction. Study Design and Setting: This is a prospective methodological study of repeated measures with a sample of 250 consecutive patients. Reliability, validity, and responsiveness were evaluated. Results: The Italian version of the LEFS showed a high degree of internal consistency with a Cronbach alpha of 0.94 (95% confidence interval [CI]: 0.91, 0.96). The test-retest reliability was high for both intra-interviewer and inter-interviewer measures with an ICC(2,1 and 2,k) of 0.91 (95% CI: 0.86, 0.93) and 0.89 (95% CI: 0.83, 0.91), respectively. The LEFS showed a better correlation with the 36-Item Short-Form Health Survey (SF-36) physical component summary score rather than with the SF-36 mental component summary score both at the initial assessment (r = 0.61 and 0.26, respectively) and at the discharge (r = 0.72 and 0.22, respectively). Receiver operating characteristic curve analysis revealed a large responsiveness for the LEFS (area under the curve [AUC] = 0.97) and a moderate responsiveness for the SF-36 (AUC = 0.68). Conclusion: The Italian version of the LEFS is a valid, reliable, and responsive tool that can be used to measure function in Italian patients with lower extremity musculoskeletal dysfunction.
AB - Objective: To determine the measurement properties of an Italian Version of the Lower Extremity Functional Scale (LEFS) in patients with lower extremity musculoskeletal dysfunction. Study Design and Setting: This is a prospective methodological study of repeated measures with a sample of 250 consecutive patients. Reliability, validity, and responsiveness were evaluated. Results: The Italian version of the LEFS showed a high degree of internal consistency with a Cronbach alpha of 0.94 (95% confidence interval [CI]: 0.91, 0.96). The test-retest reliability was high for both intra-interviewer and inter-interviewer measures with an ICC(2,1 and 2,k) of 0.91 (95% CI: 0.86, 0.93) and 0.89 (95% CI: 0.83, 0.91), respectively. The LEFS showed a better correlation with the 36-Item Short-Form Health Survey (SF-36) physical component summary score rather than with the SF-36 mental component summary score both at the initial assessment (r = 0.61 and 0.26, respectively) and at the discharge (r = 0.72 and 0.22, respectively). Receiver operating characteristic curve analysis revealed a large responsiveness for the LEFS (area under the curve [AUC] = 0.97) and a moderate responsiveness for the SF-36 (AUC = 0.68). Conclusion: The Italian version of the LEFS is a valid, reliable, and responsive tool that can be used to measure function in Italian patients with lower extremity musculoskeletal dysfunction.
KW - Cross-cultural
KW - Disability
KW - Lower Extremity Functional Scale (LEFS)
KW - Reliability
KW - Responsiveness
KW - Validity
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U2 - 10.1016/j.jclinepi.2009.08.001
DO - 10.1016/j.jclinepi.2009.08.001
M3 - Article
C2 - 19913388
AN - SCOPUS:77949658936
VL - 63
SP - 550
EP - 557
JO - American journal of syphilis, gonorrhea, and venereal diseases
JF - American journal of syphilis, gonorrhea, and venereal diseases
SN - 0895-4356
IS - 5
ER -