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Table 1.

Baseline risk factors for HPV acquisition

Risk factor*Incident high-risk, HPV (N = 122)Odds ratio (95% confidence limits)
Age (y)   
    <25 50 1.00 
    25-34 37 0.50 (0.30–0.85) 
    35-44 22 0.25 (0.14–0.45) 
    ≥45 13 0.09 (0.04–0.17) 
Ethnicity   
    Japanese 13 1.00 
    Caucasian 45 1.11 (0.54–2.29) 
    Hawaiian 14 0.83 (0.35–1.98) 
    Filipino 0.95 (0.32–2.80) 
    Other 43 1.12 (0.54–2.35) 
Education   
    ≤ High School 26 1.00 
    Some college 49 0.97 (0.55–1.72) 
    College grad 33 1.03 (0.57–1.89) 
    Graduate degree 14 1.04 (0.49–2.20) 
No. pregnancies   
    None 55 1.00 
    1 29 1.48 (0.84–2.61) 
    ≥2 38 1.04 (0.61–1.79) 
Ever been pregnant   
    No 55 1.00 
    Yes 67 1.22 (0.76–1.95) 
Age at first sexual intercourse   
    <16 25 1.00 
    16-17 40 1.40 (0.77–2.54) 
    18-19 35 1.44 (0.78–2.67) 
    ≥20 22 1.47 (0.74–2.94) 
No. lifetime sexual partners   
    <2 1.00 
    2-5 47 3.46 (1.38–8.72) 
    6-10 35 5.15 (1.99–13.36) 
    ≥11 32 3.61 (1.40–9.34) 
Ever use oral contraceptives before visit 2   
    No 23 1.00 
    Yes 99 0.75 (0.43–1.31) 
Current tobacco smoker   
    No 107 1.00 
    Yes 18 1.18 (0.65–2.16) 
Current alcohol drinker   
    No 71 1.00 
    Yes 51 1.16 (0.70–1.93) 
Risk factor*Incident high-risk, HPV (N = 122)Odds ratio (95% confidence limits)
Age (y)   
    <25 50 1.00 
    25-34 37 0.50 (0.30–0.85) 
    35-44 22 0.25 (0.14–0.45) 
    ≥45 13 0.09 (0.04–0.17) 
Ethnicity   
    Japanese 13 1.00 
    Caucasian 45 1.11 (0.54–2.29) 
    Hawaiian 14 0.83 (0.35–1.98) 
    Filipino 0.95 (0.32–2.80) 
    Other 43 1.12 (0.54–2.35) 
Education   
    ≤ High School 26 1.00 
    Some college 49 0.97 (0.55–1.72) 
    College grad 33 1.03 (0.57–1.89) 
    Graduate degree 14 1.04 (0.49–2.20) 
No. pregnancies   
    None 55 1.00 
    1 29 1.48 (0.84–2.61) 
    ≥2 38 1.04 (0.61–1.79) 
Ever been pregnant   
    No 55 1.00 
    Yes 67 1.22 (0.76–1.95) 
Age at first sexual intercourse   
    <16 25 1.00 
    16-17 40 1.40 (0.77–2.54) 
    18-19 35 1.44 (0.78–2.67) 
    ≥20 22 1.47 (0.74–2.94) 
No. lifetime sexual partners   
    <2 1.00 
    2-5 47 3.46 (1.38–8.72) 
    6-10 35 5.15 (1.99–13.36) 
    ≥11 32 3.61 (1.40–9.34) 
Ever use oral contraceptives before visit 2   
    No 23 1.00 
    Yes 99 0.75 (0.43–1.31) 
Current tobacco smoker   
    No 107 1.00 
    Yes 18 1.18 (0.65–2.16) 
Current alcohol drinker   
    No 71 1.00 
    Yes 51 1.16 (0.70–1.93) 
*

Adjusted for age as a continuous variable.

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