Article

OBJECTIVE: To examine the factorial structure of the Chinese translation of the
Pain Self-Efficacy Questionnaire in a sample of Chinese patients with chronic
pain. SETTING: Outpatient physiotherapy department in a local hospital and a
local rehabilitation clinic. PARTICIPANTS: One hundred and twenty patients with
chronic pain in physiotherapy treatment.Methods: Each participant was asked to
complete the Chinese version of the Pain Self-Efficacy Questionnaire, visual
analogue scale (VAS), modified Roland Morris Disability Questionnaire, and Short
Form Health Survey (SF-36). The test structure of the Pain Self-Efficacy
Questionnaire was evaluated by confirmatory factor analysis. Highly correlated
paths were added onto the initial structure for improving the final construct for
the Pain Self-Efficacy Questionnaire. The correlations between the Chinese Pain
Self-Efficacy Questionnaire and related measurements were computed using Pearson
product-moment correlation coefficients. RESULTS: Confirmatory factor analysis
indicated that the one-factor model provided the best fit between the model and
data, with the chi-square of the respecified model computed to be 36.79 (33, N =
120), the goodness-of-fit index 0.940, cumulative fit index 0.996, and the root
mean square error of approximation 0.031. The item-total correlations ranged from
0.70 to 0.85. Cronbach's alpha of the Chinese version of the Pain Self-Efficacy
Questionnaire was computed to be 0.94. The total scores also correlated
significantly with the modified Roland Morris Disability Questionnaire and six
subscales of SF-36. CONCLUSION: A single-factor model confirmed the
unidimensionality of the Chinese version of the Pain Self-Efficacy Questionnaire
in a sample of Chinese patients with chronic pain. It demonstrated good internal
consistency reliability and construct-related validity.

Langue : ANGLAIS