Journal of Dental Hygiene Science : eISSN 2233-7679

Table 2

Comparison of Type of Cigarette Usage according to General Characteristics

VariableConventional cigarette user
(n=1,903)
Duplicate cigarette user
(n=1,914)
χ2p-value


n%n%
SexMale1,25545.951,47654.0558.46<0.001
Female64859.6743840.33
School gradeMiddle school52454.6443545.3611.69<0.001
High school (general)86247.9793552.03
High school (characterization)49448.9151651.09
School achievementHigh14439.1322460.8723.29<0.001
Middle1,31952.091,21347.91
Low44047.9847752.02
Living areaCountry16649.4017050.602.550.28
Middle and small city94551.1690248.84
Big city79248.4784251.53
Family economic statusHigh17937.6829662.3243.28<0.001
Middle1,64052.331,49447.67
Low8440.3812459.62
Residence typeLiving with families1,77750.611,73449.3922.72<0.001
Living with relatives1734.003366.00
Living apart from one’s own families9648.2410351.76
Living in a childcare facility1322.814477.19
Father’s educationBelow high school41352.2837747.725.85<0.05
Above college51051.6747748.33
Unknown98048.041,06051.96
Mather’s educationBelow high school43252.0539847.954.670.10
Above college48651.4345948.57
Unknown98548.241,05751.76

p-value of chi-squared test.

J Dent Hyg Sci 2021;21:133-9 https://doi.org/10.17135/jdhs.2021.21.3.133
© 2021 J Dent Hyg Sci