Structural equation model analysis of infectious disease-specific health literacy scale in China / 中华流行病学杂志

ABSTRACT

Objective To explore the relationship between different dimensions of infectious disease-specific health literacy scale in China.Methods Structural equation model (SEM) was employed to assess the psychometric properties of the infectious disease-specific health literacy scale.Based on the database from a randomly selected sample of 4 499 adult residents in three provinces in China,from March to May 2015.AMOS 21.0 software was used to build the SEM for data analyses.Results SEM analyses showed a good model fit of data,with the following satisfied parametersgoodness-of-fit index was 0.969,adjusted goodness-of-fit index was 0.962,root mean square residual was 0.038,root mean square error of approximation was 0.038,standardized root mean square residual was 0.032,Tacker-Lewis index/non-normed fit index was 0.926,comparative fit index was 0.934,normed fit index was 0.925,relative fit index was 0.915,incremental fit index was 0.934,parsimony goodness-of-fit index was 0.782,parsimony-adjusted normed fit index was 0.817,parsimony-adjusted comparative fit index was 0.825 and critical N was 702.The established SEM showed that the total influence path coefficient of "infectious disease-related knowledge and values" on the "infectious disease prevention","management or treatment of infectious diseases" and "identification of infection sources" were 0.771,0.744 and 0.843,respectively.The total influence path coefficients of "identification of infection sources","infectious disease prevention" on "management or treatment of infectious diseases" were 0.164 and 0.535,respectively.The effect of "infectious disease-related knowledge and values" on "management or treatment of infectious diseases" appeared the greatest (55.4％),followed by "infectious disease prevention" (28.6％) and "identification of infection sources" (2.7％).Conclusion This SEM could be optimistically used for planning and evaluation of health education and promotion programs on infectious diseases prevention.