Objective:To test the reliability and validity of the Chinese version of social impact scale in Chinese colostomy patients

and to provide an effective assessment tool for the colostomy patients with stigma. Methods:A met inclusion criteria sampling of 200 permanent colostomy patients was selected from a hospital in Chongqing

and they filled out the Chinese version of social impact scale. Reliability and validity were tested by reliability analysis and confirmatory factor analysis. A subgroup of 30 patients completed the Chinese version of social impact scale twice to test coefficient of stability. Results:Totally 200 questionnaires were sent out

178 were recollected

the effective rate was 89% . The confirmatory factor analysis revealed a good model fit

and the fit indexes were χ

2

/df=1.263

GFI=0.901

AGFI=0.868

RMR=0.026

NFI=0.868

TLI=0.962

CFI=0.969

RMSEA=0.039. Variables of the factor loading ranged from 0.50 to 0.85 respectively. The revised social impact scale was composed of four dimensions

including 20 items. The Cronbach’s α coefficient was 0.916 for the whole scale

and respectively for the subscales ranged from 0.708 to 0.835. The test-retest reliability was 0.872. Conclusion:The revised social impact scale is proved to be reliable and valid. It can be used to assess stigma of the colostomy patients in Chinese.