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Table 2 Estimated per-encounter acquisition risks of C. trachomatis causing first-time infection ( p ¯ f ) and repeated infection ( p ¯ r ) (2nd Model)

From: Estimating age-dependent per-encounter chlamydia trachomatis acquisition risk via a Markov-based state-transition model

Age (yrs) 17 17.5 18 18.5 19 19.5 20 20.5 21 21.5
p ¯ f 0.0266 0.0216 0.0193 0.0169 0.0142 0.0122 0.0100 0.0075 0.0059 0.0049
p ¯ r q = 0% 0.0211 0.0133 0.0093 0.0070 0.0049 0.0038 0.0032 0.0028 0.0023 0.0018
  q = 5% 0.0185 0.0120 0.0086 0.0063 0.0045 0.0035 0.0029 0.0025 0.0021 0.0016
  q = 10% 0.0159 0.0102 0.0072 0.0055 0.0126 0.0031 0.0024 0.0021 00018 0.0044