Research Article

Cutaneous Human Papillomavirus Infection and Development of Subsequent Squamous Cell Carcinoma of the Skin

Table 5

Association of beta HPV infection in eyebrow hair and beta HPV seropositivity with the risk of subsequent SCC by index tumor HPV DNA status.

Viral infection at
the time of index
SCC diagnosis
HPV DNA negative index SCCHPV DNA positive index SCC
No subsequent SCC ()Subsequent SCC ()HR
(95% CI)
No subsequent SCC ()Subsequent SCC ()HR
(95% CI)

HPV serology
Any beta
 Beta HPV seronegative7 (30.4)10 (45.5)1.007 (22.6)12 (21.8)1.00
 Beta HPV seropositive16 (69.6)12 (54.5)0.44 (0.18–1.03)24 (77.4)43 (78.9)0.92 (0.48–1.75)
HPV infection in eyebrow hairs
Any beta
 DNA negative to all beta HPV types3 (13.6)6 (27.3)1.02 (6.7)5 (9.4)1.0
 DNA positive to ≥1 beta HPV19 (86.4)16 (72.7)0.97 (0.38–2.50)28 (93.3)48 (90.6)0.30 (0.11–0.78)
Any beta 1
 DNA negative3 (25.00)6 (33.3)1.02 (11.1)1 (2.8)1.0
 DNA positive9 (75.0)12 (66.7)1.21 (0.45–3.24)16 (88.9)35 (97.2)0.72 (0.09–5.45)
Any beta 2
 DNA negative3 (15.0)6 (35.3)1.01 (4.8)5 (12.8)1.0
 DNA positive17 (85.0)11 (64.7)0.85 (0.31–2.32)20 (95.2)34 (87.2)0.32 (0.12–0.86)

beta HPV seropositivity was defined as seropositive to ≥1 beta HPV types versus seronegative to all beta HPV types. beta HPV infection in eyebrow hairs was defined as DNA positivity to ≥1 beta HPV types versus DNA negativity to all beta HPV types. DNA status was defined as DNA positive to one or more beta HPV types versus DNA negative to all beta HPV types. DNA status was defined as DNA positivity to species-specific beta HPV types versus DNA negative to all beta HPV types.