Application of Cumulative Logit Model on the Severity of Students' Health Risk Behaviors

[Objective] To explore the application of cumulative logit model on the frequencies and severity of health risk behaviors (HRB) in students, and compare with Chi-square test for contingency table. [Methods] To analyze the frequencies and severity of HRB in 10 235 students and the difference between male and female, junior school and high school/college students by using cumulative logit model. [Results] The severity of HRB was 1.5-fold higher in male than that in female. The severity of HRB in junior school students was a little higher than that in high school/college students. The frequencies of HRB in male were more than that in female. The frequencies of HRB in junior school were less than that in high school/college. The results from cumulative logit model were more clear, reasonable and quantitative than those from Chi-square test. [Conclusion] The data of ordinal contingency table can be analyzed by using cumulative logit model. The syntax commands of the model are simple and the results are more reasonable and quantitative than Chi-square test. And the results can show the quantitative evaluation of influence factors (values OR), etc.