Prosthetics and orthotics international · 2025
Psychometric properties of the Khmer version of the locomotor capabilities index (LCI-5) for lower-limb prosthesis and orthosis users.
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Ramstrand Nerrolyn, Maddock Alan, Heang Thearith, Ean Nil, Kheng Sisary
Аннотация
BACKGROUND: The unavailability of validated outcome measures in local languages limits the extent to which the impact of prosthetic and orthotic devices can be assessed.
OBJECTIVES: This study examined the psychometric properties of the Khmer locomotor capabilities index (LCI-5) for use with lower-limb prosthesis users. An additional aim was to explore its psychometric properties when used on lower-limb orthosis users.
STUDY DESIGN: A cross-sectional design was used.
METHODS: The Khmer version of the LCI-5 was administered to clients attending 3 prosthetic and orthotic clinics in urban and rural Cambodia. Internal consistency and floor and ceiling effects were evaluated. Exploratory Factor Analysis and Confirmatory Factor Analysis (CFA) were performed on independent samples of prosthesis user data. A separate CFA was conducted on a data from orthosis users.
RESULTS: Four hundred thirty-seven clients completed the LCI-5. The data had high internal consistency; however, a significant ceiling effect was observed. For prosthesis users, the optimal solution arising from exploratory Factor Analysis and CFA was a 2-factor model. A modified 2-factor model produced an acceptable fit for orthosis users.
CONCLUSIONS: The results present a 2-factor structure of the Khmer LCI-5, which can be used to assess mobility in prosthesis and orthosis users. It is important to note that the factor structure of the Khmer version is not consistent with the English version. Additional work is required to address ceiling effects associated with the Khmer LCI-5.
OBJECTIVES: This study examined the psychometric properties of the Khmer locomotor capabilities index (LCI-5) for use with lower-limb prosthesis users. An additional aim was to explore its psychometric properties when used on lower-limb orthosis users.
STUDY DESIGN: A cross-sectional design was used.
METHODS: The Khmer version of the LCI-5 was administered to clients attending 3 prosthetic and orthotic clinics in urban and rural Cambodia. Internal consistency and floor and ceiling effects were evaluated. Exploratory Factor Analysis and Confirmatory Factor Analysis (CFA) were performed on independent samples of prosthesis user data. A separate CFA was conducted on a data from orthosis users.
RESULTS: Four hundred thirty-seven clients completed the LCI-5. The data had high internal consistency; however, a significant ceiling effect was observed. For prosthesis users, the optimal solution arising from exploratory Factor Analysis and CFA was a 2-factor model. A modified 2-factor model produced an acceptable fit for orthosis users.
CONCLUSIONS: The results present a 2-factor structure of the Khmer LCI-5, which can be used to assess mobility in prosthesis and orthosis users. It is important to note that the factor structure of the Khmer version is not consistent with the English version. Additional work is required to address ceiling effects associated with the Khmer LCI-5.