Effect of an educational intervention on HPV knowledge and attitudes towards HPV and its vaccines among junior middle school students in Chengdu, China

Table 5 Changes of awareness and attitudes 1 year after the intervention among the interventional group

Items	Immediately after the intervention	Follow-up after 1 year	Change	P ^a
Items	n (%)	n (%)	Percentage point difference (%)	P ^a
Cause for cervical cancer
Infected by HPV	534 (58.3)	298 (36.0)	−22.3	< 0.001
Other answers^d	382 (41.7)	530 (64.0)
Total	916^b	828^c
The transmitted route of HPV
Sexual transmission	787 (86.9)	518 (63.8)	−23.1	< 0.001
Other answers^e	119 (13.1)	294 (36.2)
Total	906^b	812^c
The most effective method to prevent HPV infection
HPV vaccination	790 (86.1)	586 (71.4)	−14.7	< 0.001
Other answers^f	122 (13.3)	235 (28.6)
Total	912^b	821^c
The best time stage to HPV vaccination s
Junior middle school	778 (84.9)	305 (36.9)	−48.0	< 0.001
Other answers	138 (15.1)	522 (63.1)
Total	916^b	827^c
Are you willing to vaccinate yourself?
Yes	808 (88.4)	647 (78.8)	−9.6	< 0.001
No	106 (11.6)	174 (21.2)
Total	914^b	821^c

^a Chi-squared test
^bNumbers are not equal to 918 due to some incomplete answers
^cNumbers are not equal to 830 due to some incomplete answers
^dincluding: heredity, sexually transmitted disease, multiple sexual partners, bacterial infection, bad health habits, smoking and other unhealthy lifestyle, no answer
^eincluding: airborne transmission, food-borne transmission, all of the three routes
^fregular condom use, sexual onset at early age, avoiding multiple sexual partners, no answer

ISSN: 1471-2458