Table 1

 Detection of human papillomavirus (HPV) DNA by sample site among 277 HPV positive soldiers. Mexico, 2001–2

HPV positivityNo%
*Represents the proportion of false HPV negatives if only external genitalia sample had been used; †Corresponding 95% confidence intervals.
Group 1 (n = 79)
All types
    Both sites3139.2
    External genitalia only4455.7
    Urethra only 4 5.1*
(1.4 to 12.5)†
High risk
    Both sites2642.6
    External genitalia only3252.5
    Urethra only 3 4.9*
(1.0 to 13.7)†
Low risk
    Both sites717.1
    External genitalia only3175.6
    Urethra only 3 7.3*
(1.5 to 19.9)†
Group 2 (n = 198)
All types
    Both sites4723.7
    External genitalia only14874.8
    Meatus only 3 1.5*
(0.3 to 4.4)†
High risk
    Both sites2718.8
    External genitalia only11479.2
    Meatus only 3 2.1*
(0.4 to 6.0)†
Low risk
    Both sites2922.7
    External genitalia only9876.6
    Meatus only 1 0.8*
(0.0 to 4.3)†