Skip to main content

Table 2 Associations between lifestyle factors and serological reactivity for HPV16

From: Determinants of baseline seroreactivity to human papillomavirus type 16 in the Ludwig-McGill cohort study

Characteristic and categories HPV16 seroreactivity 425/1624 (%)* OR (95%CI)**
Unadjusted Adjusted (HPV16 and age)
Smoking:    
Never 216/768 (22.0) 1.0 1.0
Current 124/581 (17.6) 0.75 (0.59-0.97) 0.74 (0.58-0.98)
Former 85/275 (23.6) 1.09 (0.82-1.46) 1.06 (0.79-1.42)
Smoking duration:    
Never 216/768 (22.0) 1.0 1.0
<=10 years 86/379 (18.5) 0.81 (0.61-1.07) 0.81 (0.61-1.07)
11+ years 95/413 (18.7) 0.82 (0.62-1.07) 0.62 (0.57-0.98)
Drinking:    
Never 131/556 (19.1) 1.0 1.0
Ever drinker 291/1064 (21.5) 1.16 (0.92-1.47) 1.16 (0.92-1.47)
Lifetime sexual partners:    
0-1 132/770 (14.6) 1.0 1.0
2-3 162/555 (22.6) 1.70 (1.32-2.19) 1.70 (1.32-2.20)
4-5 84/181 (31.7) 2.71 (1.97-3.72) 2.56 (1.97-3.53)
6+ 47/117 (28.7) 2.34 (1.59-3.44) 2.29 (1.55-3.37)
Sexual partners, last 5 years:   
0-1 321/1262 (20.3) 1.0 1.0
2-3 83/290 (22.2) 1.12 (0.86-1.48) 1.17 (0.88-1.55)
4+ 20/71 (22.0) 1.10 (0.66-1.84) 1.30 (0.77-2.19)
Sexual partners, last year:    
0-1 400/1534 (20.7) 1.0 1.0
2-3 15/69 (17.9) 0.83 (0.47-1.47) 0.90 (0.51-1.60)
4+ 2/5 (28.6) 1.53 (0.29-7.93) 1.89 (0.36-9.87)
Age at first sexual intercourse:   
20-50 89/446 (16.6) 1.0 1.0
18-19 89/344 (20.6) 1.30 (0.93-1.79) 1.52 (1.08-2.13)
16-17 107/417 (20.4) 1.29 (0.94-1.76) 1.60 (1.15-2.23)
<=15 140/417 (25.1) 1.68 (1.25-2.27) 2.18 (1.59-3.00)
Frequency of sex (weekly):    
0-1 times 224/865 (20.6) 1.0 1.0
2-3 133/576 (18.8) 0.89 (0.70-1.13) 0.95 (0.75-1.22)
4-5 42/123 (25.5) 1.31 (0.90-1.92) 1.53 (1.04-2.26)
6+ 25/58 (30.1) 1.66 (1.01-2.72) 1.77 (1.07-2.92)
Practice of anal sex:    
Never 254/1018 (20.0) 1.0 1.0
Ever 171/606 (22.0) 1.13 (0.91-1.41) 1.14 (0.92-1.42)
Practice of oral sex:    
Never 195/739 (20.9) 1.0 1.0
Ever 230/885 (20.6) 0.98 (0.79-1.22) 1.08 (0.87-1.34)
  1. *Frequencies above and below the threshold for the top 20% quintile and percentage with high seroreactivity; **Odds ratios and respective 95% confidence intervals. First category in each variable is the referent.