Table 3

Health and behavioural factors potentially associated with vaccination status (Zurich, Switzerland, 2024)

	Female YAs N=2718			Male YAs N=2016			Male vs female YAs
	Vaccinated n=1110	Not vaccinated n=1045	P value**	Vaccinated n=158	Not vaccinated n=838	P value	P value*
General health
Mental health sum score (mean±SD)	68.5±14.3	67.46±14.7	0.026	72.18±13.9	72.01±14.6	0.888	<0.001*
Realisation of at least one gynaecological visit (yes, %)	97.30	93.68	<0.001	–	–	–
Age at first gynaecological visit (mean±SD)	16.70±2.85	17.04±3.35	0.013	–	–	–
Partnership experiences
Age at first steady partnership (mean±SD)	17.50±2.80	17.39±2.96	0.387	17.39±3.21	18.05±3.31	<0.005	<0.001*
Nb lifetime sex partners (%)			0.547			<0.001	0.139*
0	3.33	5.65		4.43	6.21
1	17.21	17.70		7.59	15.39
2–3	23.60	20.38		17.72	20.05
4–7	25.22	24.11		26.58	27.08
8–10	10.27	12.34		12.66	9.90
>10	19.64	19.23		28.48	19.81
Sexuality/sexual risk behaviour
Age first sexual intercourse (mean±SD)	17.54±2.66	17.46±2.74	0.526	17.40±2.87	17.90±2.91	0.084
Sex after consummation of drugs/ alcohol (≥sometimes %)	15.87	19.28	0.171	23.81	23.81	0.592
Sex with someone met online (≥sometimes %)	8.44	7.55	0.389	19.72	15.44	0.034	<0.001*
Sex without contraception (≥sometimes %)	21.04	23.36	0.329	37.42	26.77	0.003	<0.001*
STDs ever diagnosed (%)			0.170			0.477
No	65.86	69.19		91.77	92.60
Yes	31.89	28.61		6.96	6.92
Do not know/no answer	2.25	2.20		1.26	0.48

Significant p values are marked in bold, p values are presented as adjusted p values. For all variables being significant on bivariate level, we analysed the difference of its presence in the female and male population. Data are presented as n (%) or mean (±SD) using χ2 and independent t-tests. The bold values indicate statistical significance.
*P values for this analysis.