Translation and validation of Chinese version of International Knee Documentation Committee Subjective Knee Form.
OBJECTIVE
To translate, cross-culturally adapt and validate the International Knee Documentation Committee Subjective Knee Form (IKDC-SKF-C) to Chinese.


METHODS
Forward and backward translations were conducted by two bilingual professional translators. Content validity was verified by a panel of a senior orthopaedic surgeon and six physiotherapists. The IKDC-SKF-C was tested on 84 patients. Psychometric testing included internal consistency (Cronbach's α) and test-retest reliability. Convergent validity used Spearman's correlation coefficient (rho) tests by comparing its score with the Chinese version of SF-36.


RESULTS
The Internal consistency was excellent with Cronbach's α = 0.97. Test-retest reliability was supported with an ICC = 0.87. The IKDC-SKF-C was moderately related to concurrent measures of physical function and bodily pain (r = 0.64, p < 0.05).


CONCLUSIONS
The translated Chinese IKDC-SKF is a reliable and valid tool with equal measurement properties and conceptual equivalent to the original version.
Fu
Siu-Ngor
SN
Department of rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong. rsamyfu@polyu.edu.hk
Chan
Yat-Hing
YH
D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D044466:Asian People; D004185:Disability Evaluation; D005260:Female; D006723:Hong Kong; D006801:Humans; D007718:Knee Injuries / Q000175:diagnosis* / Q000534:rehabilitation; D008297:Male; D008875:Middle Aged; D020370:Osteoarthritis, Knee / Q000175:diagnosis* / Q000534:rehabilitation; D011594:Psychometrics; D011788:Quality of Life; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires