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. 2014 Mar 17;9(3):e91761. doi: 10.1371/journal.pone.0091761

Table 2. Characteristics of HPV negative and HPV positive individuals.

Characteristics HPV- HPV+ Crude OR
N (%) N (%) (95% CI) P value
Gender Male 110 (36.7%) 6 (85.7%) 1.00 (ref) 0.008
Female 190 (63.3%) 1 (14.3%) 0.10 (0.01–0.81)
Age 18–19 yrs 96 (32.0%) 2 (28.6%) 1.00 (ref)
20–21 79 (26.3%) 1 (14.3%) 0.61 (0.05–6.82)
22–24 65 (21.7%) 1 (14.3%) 0.74 (0.07–8.31)
25–35 60 (20.0%) 3 (42.9%) 2.40 (0.39–14.78) 0.508
Born in Australia No 80 (26.7%) 3 (42.9%) 1.00 (ref) 0.340
Yes 220 (73.3%) 4 (57.1%) 0.48 (0.11–2.21)
Number of alcoholic drinks per week Less than 1 159 (53.0%) 3 (42.9%) 1.00 (ref) 0.595
2 or more 141 (47.0%) 4 (57.1%) 1.50 (0.33–6.83)
Smoking status Non 250 (83.3%) 4 (57.1%) 1.00 (ref) 0.191
Current 18 (6.0%) 1 (14.3%) 3.47 (0.37–32.71)
Former 32 (10.7%) 2 (28.6%) 3.91 (0.69–22.18)
Illicit drug use in the last 12months Never 216 (72.0%) 3 (42.9%) 1.00 (ref) 0.072
Less than monthly 63 (21.0%) 2 (28.6%) 2.29 (0.37–13.98)
More than monthly 21 (7.0%) 2 (28.6%) 6.86 (0.37–13.98)
Ever had any type of sexual contact (including passionate kissing) No 31 (10.3%) 0 (0.0%) 0.370
Yes 269 (89.7%) 7 (100%)
Number of kissing partners in a lifetime 1 21 (7.9%) 1 (14.3%) 1.00 (ref) 0.504
2–3 55 (20.6%) 1 (14.3%) 0.38 (0.02–6.39)
4–7 59 (22.1%) 0 (0.0%)
8–15 52 (19.5%) 1 (14.3%) 0.40 (0.02–6.76)
16–28 31 (11.6%) 1 (14.3%) 0.68 (0.04–11.44)
29 or more 49 (18.4%) 3 (42.9%) 1.29 (0.13–13.09)
Ever engaged in oral sex No 50 (18.7%) 1 (14.3%) 1.00 (ref) 0.769
Yes 218 (81.3%) 6 (85.7%) 1.38 (0.16–11.69)
Gender of oral sex partner Same sex only 19 (8.7%) 1 (16.7%) 1.00 (ref)
Opposite sex only 188 (85.8%) 5 (83.3%) 0.50 (0.06–4.55)
Both sexes 12 (5.5%) 0 (0.0%) - 0.686
Ever given oral sex No 9 (4.1%) 0 (0.0%) - 0.612
Yes 210 (95.9%) 6 (100%) -
Number of partners given oral sex to in lifetime 1–7 169 (80.5%) 3 (50.0%) 1.00 (ref) 0.068
8 or more 31 (19.5%) 3 (50.0%) 4.12 (0.80–21.17)
Number of partners given oral sex to in last year None 22 (10.4%) 1 (16.7%) 1.00 (ref) 0.262
1 130 (61.6%) 2 (33.3%) 0.34 (0.03–3.89)
2–3 38 (18.0%) 1 (16.7%) 0.58 (0.03–9.72)
4 or more 21 (10.0%) 2 (33.3%) 2.10 (0.18–24.87)
Use of condom when giving oral sex Never 176 (83.4%) 6 (100%) - 0.880
Seldom 15 (7.1%) 0 (0.0%) -
Occasionally 16 (7.6%) 0 (0.0%) -
Frequently 2 (0.9%) 0 (0.0%) -
Very frequently 2 (0.9%) 0 (0.0%) -
Ever received oral sex No 10 (4.6%) 1 (16.7%) 1.00 (ref) 0.175
Yes 209 (95.4%) 5 (83.3%) 0.24 (0.03–2.24)
Number of partners received oral sex from in lifetime 1 55 (25.8%) 0 (0.0%) - 0.0004
2–3 66 (31.0%) 0 (0.0%) -
4–7 50 (23.5%) 1 (20.0%) 1.00 (ref)
8–15 29 (13.6%) 1 (20.0%) 1.72 (0.10–28.62)
16–28 8 (3.8%) 2 (40.0%) 12.50 (1.01–154.40)
29 or more 5 (2.3%) 1 (20.0%) 10.00 (0.54–185.46)
Number of partners received oral sex from last year None 25 (11.7%) 1 (20.0%) 1.00 (ref) 0.008
1 133 (62.4%) 1 (20.0%) 0.19 (0.01–3.10)
2–3 31 (14.6%) 0 (0.0%) -
4 or more 24 (11.3%) 3 (60.0%) 3.12 (0.30–32.16)
Ever had sexual intercourse No 61 (22.7%) 1 (14.3%) 1.00 (ref) 0.599
Yes 208 (77.3%) 6 (85.7%) 1.76 (0.21–14.90)
No 300 (100%) 6 (85.7%) -
Ever diagnosed with or treated for HIV/AIDS Yes 0 (0.0%) 1 (14.3%) -
No 300 (100%) 6 (85.7%) - 0.023
Have you ever received the Gardasil vaccine No 192 (64.2%) 7 (100%) - 0.146
Yes 98 (32.8%) 0 (0.0%) -
Don't know 9 (3.0%) 0 (0.0%) -