Age-Related Changes in the Fraction of Cervical Intraepithelial Neoplasia Grade 3 Related to HPV Genotypes Included in the Nonavalent Vaccine

Table 3

Distribution of HPV genotypes according to age, ethnicity, and sample collection year.

Variables	Nonavalent HPV vaccine genotypes n (%)	value	Non-high-risk HPV genotypes n (%)	value
Age (years)		0.006		0.018
<35 years	76 (96.2)		1 (1.3)
35–44 years	70 (93.3)		2 (2.7)
≥45 years	41 (82.0)		5 (10.0)
Ethnicity		0.902		0.726
Italian	148 (91.4)		7 (4.3)
Chinese	9 (81.8)		1 (9.1)
East Europe	25 (96.2)		0 (0.0)
Northern Europe	1 (100)		0 (0.0)
African	4 (100)		0 (0.0)
Sample collection year		0.842		0.223
2011 (4 months)	20 (90.9)		0 (0.0)
2012 (12 months)	59 (92.2)		2 (3.1)
2013 (12 months)	62 (92.5)		3 (4.5)
2014 (11 months)	46 (90.2)		3 (5.9)

HPV: human papillomavirus.