Reliability and validity of a Chinese version of the Quality of Life in Epilepsy Inventory (QOLIE-89).
OBJECTIVE
The aim of the work described here was to develop and validate a Chinese version of the Quality of Life in Epilepsy Inventory-89 (QOLIE-89).


METHODS
The original English version of the QOLIE-89 was adapted to the Chinese language through a translation-retranslation procedure. The inventory was then completed by 293 adult patients with epilepsy. Forty patients also completed the Chinese version of the QOLIE-31. Test-retest and internal consistency reliabilities, criterion validity, and discriminative validity were assessed.


RESULTS
Test-retest reliability (Pearson's correlation coefficient) for the Chinese version of the QOLIE-89 ranged from 0.70 to 0.98, and internal consistency reliability (Cronbach's alpha) ranged from 0.70 to 0.99. Spearman's rank correlation between the total scores on the Chinese versions of the QOLIE-89 and QOLIE-31 was 0.97, and domain scores ranged from 0.86 to 1.00. QOLIE-89 items could be used to discriminate between patients with respect to epileptic seizure severity and antiepileptic drug side effects.


CONCLUSIONS
The psychometric properties of the Chinese version of the QOLIE-89 are good and similar to those of the American version and can be applied to assess quality of life in adult patients with epilepsy in China.
Zhao
Yongqing
Y
Comprehensive Epilepsy Centre, Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Tiantanxili 6, Chongwen Districts, Beijing 100050, PR China.
Ding
Chengyun
C
Wang
Yongjun
Y
Li
Zhimei
Z
Zhou
Yong
Y
Huang
Yuming
Y
D002681:China; D003431:Cross-Cultural Comparison; D004827:Epilepsy / Q000523:psychology*; D006801:Humans; D011594:Psychometrics; D011788:Quality of Life; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D018434:Sickness Impact Profile; D018709:Statistics, Nonparametric; D011795:Surveys and Questionnaires / Q000592:standards*