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Table 2 Proportion of 15–49 year old females in Ontario who had multiple rubella serology tests, by age at first test and selected sequence of test results, 2006–2010

From: Rubella immunity among prenatal women in Ontario, 2006–2010

Age at first test Sequence of test results
  Susceptible Immune-susceptible Indeterminate Susceptible-immune Immune
15-19 years (N = 5,663) 4.2 0.3 3.1 4.9 87.6
20-24 years (N = 14,239) 3.1 0.3 2.4 4.5 89.8
25-29 years (N = 26,596) 2.0 0.2 1.6 3.7 92.5
30-34 years (N = 22,326) 1.4 0.2 1.0 2.3 95.2
35-39 years (N = 7,406) 1.8 0.1 1.0 1.8 95.3
40-49 years (N = 855) 1.3 0.4 1.6 1.1 95.5
  1. (N = 82,016 patients, excluding 2,728 patients for whom a different sequence of test results was observed).