Alphapapillomavirus incidence, summed over all types Alphapapillomavirus incidence, summed over all types Alphapapillomavirus incidence, summed over all types Alphapapillomavirus incidence, summed over all types Alphapapillomavirus incidence, summed over all types Alphapapillomavirus incidence, summed over all types Betapapillomavirus incidence, summed over all types Betapapillomavirus incidence, summed over all types Betapapillomavirus incidence, summed over all types Betapapillomavirus incidence, summed over all types Betapapillomavirus incidence, summed over all types Betapapillomavirus incidence, summed over all types
Risk factor Events (n) Incidence rate (/100 person-years) HR 95%CI HRadja 95%CI Events (n) Incidence rate (/100 person-years) HR 95%CI HRadja 95%CI
Positivity to other HPV genusb
Positive any
18
0.7
0.84
0.49-1.43
0.86
0.51-1.45
30
0.9
0.72
0.45-1.15
0.81
0.50-1.31
Negative any
131
0.8
1.00
Ref
1.00
Ref
227
1.2
1.00
Ref
1.00
Ref
Age years
<25
46
1.4
1.00
Ref
1.00
Ref
42
1.1
1.00
Ref
1.00
Ref
25-34
56
0.8
0.58
0.36-0.92
0.58
0.37-0.92
104
1.3
1.16
0.81-1.66
1.14
0.71-1.83
35-44
35
0.6
0.46
0.27-0.79
0.48
0.29-0.81
66
1.0
0.96
0.65-1.41
0.94
0.56-1.56
≥45
16
0.3
0.41
0.22-0.75
0.31
0.17-0.57
45
1.4
1.27
0.83-1.93
1.31
0.75-2.28
Lifetime number of sex partners
0-1
43
0.5
1.00
Ref
1.00
Ref
135
1.4
1.00
Ref
1.00
Ref
2-3
66
1.0
2.02
1.27-3.23
1.89
0.19-3.00
80
1.0
0.77
0.58-1.01
0.79
0.56-1.11
4+
44
1.2
2.41
1.49-3.91
2.23
1.36-3.64
42
1.0
0.73
0.51-1.03
0.79
0.50-1.26
Any sex in last interval
No
30
1.6
1.00
Ref
1.00
Ref
18
0.8
1.00
Ref
1.00
Ref
Yes
123
0.7
0.48
0.31-0.74
0.44
0.28-0.70
239
1.2
1.57
1.00-2.46
1.63
1.02-2.63
New sex partner in last interval
No
144
0.8
1.00
Ref
1.00
Ref
250
1.2
1.00
Ref
1.00
Ref
Yes
9
1.7
2.04
0.96-4.36
1.87
0.87-4.01
7
1.2
0.95
0.38-2.38
1.00
0.37-2.29