Table 5. HPV detection for each histological grade

IP grades	HPV(+) specimen number	HPV subtype
I (n=5)	26 (from patient 18)	52
	53 (from patient 36)	Unspecified
II (n=23)	22 (from patient 14)	52
	23 (from patient 15)	35/58
	43 (from patient 29)	31
	51 (from patient 34)	Unspecified
	57 (from patient 38)	11/16
III (n=22)	0
IV (n=7)	0

Adopted from Kim et al.¹²⁾ with permission of Sage.
HPV: human papilloma virus.