Objective To understand the knowledge and ability of college students to prevent HIV,and to explore key factors in the occurrence of risky sexual behavior.Methods Through PPS-cluster sampling,a questionnaire survey was conducted among students in a medical university.Based on the information-motivation-behavioral skills(IMB)model,a mediating effect model was constructed to verify the mediating role of behavioral skills in the influence of motivation on behav-ior.Results A tolal of 1433 question naires were collected,of which 1424 were valid,with an effective recovery rate of 99.37％.Information and motivation were two independent factors that influenced behavior through behavioral skills,and information had no direct effect on behavior.Behavioral skills played a partial-mediating role in the influence of motivation on behavior[astd*bstd/(c'+astd*bstd)=15.24％].Conclusion Targeted intervention measures on behaviors should be formulated according to the characteristics of college students.
AIDSSexual risk behaviorIMB modelMediation effect model
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