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Table 4 Odds ratios for associations between persistent HPV infection at visit (t) and viral load at visit (t-1) estimated via GEE models

From: Human papillomavirus (HPV) types 16, 18, 31, 45 DNA loads and HPV-16 integration in persistent and transient infections in young women

    OR and 95% CI
HPV type Viral load tertile No. of Events/No. Eligible cases Crude Adjusted*
16 First 29/54 1.0 1.0
  Second 42/54 2.97 (1.25-7.03) 2.88 (1.22-6.87)
  Third 40/54 2.47 (1.15-5.32) 2.45 (1.14-5.26)
18 First 7/21 1.0 1.0
  Second 13/21 5.24 (0.65-42.52) 4.33 (0.80-23.61)
  Third 17/21 10.23 (1.39-75.41) 11.33 (1.90-67.59)
31 First 14/18 1.0 1.0
  Second 13/18 0.73 (0.13-4.00) 0.77 (0.15-3.80)
  Third 8/18 0.22 (0.04-1.28) 0.24 (0.05-1.28)
45 First 5/9 1.0 1.0
  Second 4/10 0.66 (0.05-7.99) 0.46 (0.04-5.02)
  Third 5/8 1.97 (0.12-32.16) 0.92 (0.06-14.02)
  1. Events are considered as HPV infections with the stated type at visits at times t = 2, 3, 4, and 5 as a function of viral load determined at the preceding visit.
  2. *Adjusted for age and number of lifetime sexual partners