Table 3

Age, sex and time since transplantation distribution in HPV seropositives compared to seronegatives among Caucasian transplant patients without skin cancer from London and Oxford (N = 425)

Seronegative to all HPV types

Seropositive to at least one HPV type

total

N = 59

N = 366

N = 425

Sex

male

25 (42)

140 (38)

165 (39)

female

34 (58)

226 (62)

260 (61)

P-het.

0.5

age at recruitment

<45

24 (41)

163 (45)

187 (44)

45 to 59

20 (34)

138 (38)

158 (37)

≥ 60

15 (25)

65 (18)

80 (19)

P-trend

0.3

time since transplantation

<5

24 (41)

126 (34)

150 (35)

5 to 9

11 (19)

102 (28)

113 (27)

≥ 10

24 (41)

138 (38)

162 (38)

P-trend

1.0

N: number; HPV: Human papillomavirus; het: heterogeneity. P-value using conditional

(on centre) logistic regression adjusted for each others.

Casabonne et al. Infectious Agents and Cancer 2009 4:13   doi:10.1186/1750-9378-4-13