Human papillomavirus genotype distribution and socio-behavioural characteristics in women with cervical pre-cancer and cancer at the start of a human papillomavirus vaccination programme: the CIN3+ plus study

Table 4 Factors associated with cervical cancer in CIN3+ plus study group compared with the Swiss Health Survey

	CIN3+ plus study group n = 273	Swiss Health Survey n = 3537	p-value
	% or mean (95% CI)	% or mean (95% CI)	p-value
Number of sexual partners in the last 12 months
0	9.2	13.8	< 0.001^a
1	74.0	78.8
≥ 2	15.4	6.8
Unknown	0.0	0.0
No answer	1.5	0.6
Age at first sexual intercourse^b	17.5 (17.2–17.9)	18.1 (17.9–18.2)	0.005
Reported hormonal contraception use in the last 12 months^c	35.5	41.7	0.072
Current smoker	38.5	25.6	< 0.001
Current smoker	61.5	74.4	< 0.001
Have you ever had a Pap-test?^d
Yes	89.0	81.5	0.002^d
No	8.8	16.3
Unknown	1.1	0.5
No answer	1.1	0.0
Not asked	0.0	1.7

Abbreviations: CI confidence interval
^aUnknown, no answer and not asked categories were not included in statistical analysis
^bThe number of observations for age at first sex was 270 for the CIN3 + plus study group and 2914 for the Swiss Health Survey
^cIncludes any intrauterine device for the Swiss Health Survey
^dWomen were asked if they ever had a cervical cancer screening test before the start of their current illness for the CIN3 + plus study

ISSN: 1471-2407