Reliability and validity of Chinese version of Maternal Blue Scale
Objective To translate the Maternal Blue Scale (MBS) into Chinese,and evaluate the reliability and validi-ty.Methods The MBS was translated back-translated,culturally adapted and pre-tested according to the Brislin trans-lation model to develop the Chinese version of MBS.Postpartum women from obstetrics centers in three tertiary gener-al hospitals in Shandong Province were selected using convenience sampling method to assess the reliability and va-lidity of the Chinese version of MBS.Content validity was evaluated based on expert ratings.Criterion-related validity was evaluated using the Chinese version of the Edinburgh Postnatal Depression Scale (EPDS) as the criterion.Structur-al validity was evaluated using exploratory and confirmatory factor analyses.Reliability was assessed by calculating Cronbach's α and split-half reliability.Receiver operating characteristic (ROC) curve was plotted to evaluate predictive validity.Results Totally 500 questionnaires were allocated,and 479 valid ones were recovered,with an effective re-covery rate of 95.80％.The Chinese version of MBS consisted of 32 items across 6 dimensions:mother-infant commu-nication,infant feeding,role adaptation,maternal responsibilities,family acceptance and social support.The item-level content validity index ranged from 0.900 to 1.000,and the scale-level content validity index/average was 0.990.The correlation coefficient between the Chinese version of MBS scores and the Chinese version of EPDS scores was 0.675 (P<0.05).Exploratory factor analysis extracted 6 common factors,with a cumulative variance contribution rate of 74.581％.Confirmatory factor analysis indicated good model fit,with a root mean square error of approximation of 0.014,a goodness of fit index of 0.896,a comparative fit index of 0.996,an incremental fit index of 0.996,a normed fit index of 0.913,and a Tucker-Lewis index of 0.995.The overall Cronbach's α was 0.924,and the split-half reliability was 0.765.The Cronbach's α of each dimension ranged from 0.809 to 0.956,and the split-half reliabil-ity ranged from 0.807 to 0.966.The area under the ROC curve was 0.909 (95％CI:0.880-0.937).At the optimal cut-off score of 75.5,the Youden index reached its maximum of 0.698,with a sensitivity of 0.874 and a specificity of 0.824.Conclusion The Chinese version of MBS has good reliability and validity,and it is suitable to evaluate mater-nal blue among Chinese postpartum women.
Maternal Blue Scalereliabilityvaliditycross-cultural adaptation
万方数据
维普
