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Table 3 Prevalence, reinfection and clearance rates concerning the 6 HR-HPV types

From: Persistence, clearance and reinfection regarding six high risk human papillomavirus types in Colombian women: a follow-up study

Viral type Baseline Clearance Reinfection
Prevalence% (n=) [95% CI] Viral load, median (IQR) Rate* [95% CI] Total HPV viral load**, median (IQR) % (n=) [95% CI] Viral load, median (IQR)
Absolut Normalised Absolut Normalised Absolut Normalised
HPV-16 71.2% (156) [64.7-77.1] 2.9E + 6 (9.7E + 6) 0.2 (6.7) 5.9 [4.9-7.2] 2.17E + 09 (7.67E + 10) 5 (13,468) 48.6% (53) [39–58] 2.9E + 6 (9.2E + 6) 0.32 (5.3)
HPV-18 53% (116) [46.1-59.7] 4.3E + 6 (4.56E + 07) 0.42 (13) 1.76 [1.3-2.4] 6.56E + 09 (6.34E + 11) 208 (30,101) 12% (7.4-20.4) 3.0E + 6 (4.28E + 07) 0 .1 (1.8)
HPV-31 37% (81) [30.6-43.8] 9.04E + 07 (6.29E + 09) 44 (3,360) 2.75 [1.96-3.84] 1.23E + 07 (3.02E + 07) 7 (96) 50% (17) [32–67] 1.96E + 09 (7.61E + 09) 3,360 (12,400)
HPV-33 6.4% (14) [3.5-10.5] 2.96E + 07 (1.14E + 09) 3.6 (39,100) 11.51 [6.7-19.8] 1.39E + 9 (1.91E + 10) 774 (4,683) 38.5% (5) [14–68] 1.47E + 08 (5.82E + 08) 51 (128)
HPV-45 43.4% (95) [36.7-50.2] 2.48E + 06 (1.12E + 09) 0.33 (180) 5 [3.9-6.42] 1.84E + 08 (9.30E + 11) 18 (1E + 05) 43.5% (27) [30.9-56.7] 1.14E + 08 (1.94E + 09) 17 ( 7,180)
HPV-58 45.7% (100) [38.9-52.5] 6.14E + 05 (2.1E + 06) 0.4 (15.7) 4.05 [3.1-5.24] 4.35e + 08 (5.92e + 10 ) 141 (5,749) 0 0*** 0
  1. *Clearance rates are given in values per month, per 100 individuals.
  2. **Total HPV viral load was taken as the mean of the other HPV type infections on clearance.
  3. ***The load for other HPV-58 types was not calculated as there was no re-infection.
  4. HPV Human papillomavirus, IQR Interquartile range.