Table 4 Persistence rates per event (event 1 is the first persistent infection with a vaccine /cross-protective type, event 2 is the second persistent infection, with at least one negative observation in between type-specific persistent infections, event 3 is the third persistent infection, with at least one negative observation in between type-specific infections)
Vaccination Status | Event | Cases | Person time | PR per 100 PY | PRR per 100 PY |
|---|---|---|---|---|---|
Vaccine types (HPV16/18) | |||||
Unvaccinated | 1 | 51 | 3792 | 1.35 (1.02–1.77) | Ref |
2 | 5 | 95 | 5.26 (2.19–2.64) | 3.91 (1.56–9.80) | |
3 | 0 | 17 | Â | Â | |
Vaccinated | 1 | 3 | 4100 | 0.07 (0.02–0.23) |  |
2 | 0 | 4 | Â | Â | |
3 | 0 | 0 | Â | Â | |
 Cross-protective types (HPV31/33/45) | |||||
Unvaccinated | 1 | 34 | 3813 | 0.89 (0.64–1.25) | Ref |
2 | 3 | 60 | 5.00 (1.61–15.50) | 5.61 (1.72–18.26) | |
3 | 0 | 6 | Â | Â | |
Vaccinated | 1 | 14 | 4082 | 0.34 (0.20–0.58) |  |
2 | 0 | 60 | Â | Â | |
3 | 0 | 0 | Â | Â | |