Table 4.

Paired analysis comparing HPV detection among any tissue from a case (lesion or perilesion) versus any tissue from a control (sun-exposed or sun-protected skin)

	Combined case sites (n=72) no. (%)	Combined control sites (n=95) no. (%)	OR (95% CI)
Any HPV	52 (72%)	71 (75%)	0.8 (0.3–1.8)
α-Papillomavirus	11 (15%)	6 (6%)	2.8 (0.8–9.8)
9	4 (6%)	0 (0%)	∞
10	7 (10%)	3 (3%)	2.3 (0.4–12.0)
β-Papillomavirus	47 (65%)	68 (72%)	0.7 (0.3–1.6)
1	36 (50%)	39 (41%)	1.7 (0.8–3.5)
2	28 (39%)	43 (45%)	0.8 (0.4–1.6)
3	3 (4%)	10 (11%)	1.2 (0.3–4.9)
γ-Papillomavirus	10 (14%)	9 (9%)	1.3 (0.5–4.0)
3	7 (10%)	4 (4%)	2.5 (0.6–10.3)

CI, confidence interval; HPV, human papillomavirus; OR, odds ratio.