Journal List > J Korean Acad Oral Health > v.42(3) > 1122186

Kim and Jung: Differences in smoking and tooth brushing habits among general high school and vocational high school students



The purpose of this study was to investigate differences in smoking and toothbrushing habits between vocational and general high school students, using data from the 10th Korea Youth Risk Behavior Web-based Survey.


This study performed a complex samples cross-tabulation analysis and multivariate logistic regression analysis to identify differences in smoking and brushing habits according to the school type on 35,904 students from 400 sample high schools. The final model of logistic regression analysis was adjusted for gender, grade, subjective socioeconomic status, paternal education, and maternal education.


The risks of having experienced smoking and current smoking among vocational high school students were 2.3 times and 2.8 times higher compared with general high school students, respectively (P<0.001). The risks of brushing teeth less than 3 times a day and not brushing teeth after lunch were 1.4 times and 2.0 times higher compared with general high school students, respectively (P<0.001).


This study suggests the need for developing and implementing an oral health program that reflects the characteristics of vocational high schools to reduce the differences in smoking and toothbrushing habits between general and vocational high school students.

Figures and Tables

Table 1

Distribution of socio-demographic characteristics by type of school among high school students


*P-value by chi-squared test.

Table 2

Distribution of smoking and toothbrushing habits by type of sc hool among high school students


*P-value by chi-squared test.

Table 3

Odds ratios for the association between oral health-related behaviors and type of school among high school students



Model 1: adjusting for type of School, Gender, Grade; Model 2: adjusting for type of School, Gender, Grade, Subjective economic status, Father's education, Mother's education.


This work was supported by the Scientific Research (SR1504) of Gangneung-Wonju National University Dental Hospital.


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