From: Effect of an educational intervention on HPV knowledge and attitudes towards HPV and its vaccines among junior middle school students in Chengdu, China
Variables
Number (n)
Percentage (%)
School type
 Rural
838
50.0
 Urban
837
Gender
 Boys
885
52.8
 Girls
769
45.9
 Missing
21
1.3
Ethnicity
 Han
1579
94.3
 Others
49
2.9
47
Year
 2015
753
45.0
 2016
922
55.0