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Table 3 Factors associated with anti-PT levels

From: Seroprevalence of Bordetella pertussis specific Immunoglobulin G antibody levels among asymptomatic individuals aged 4 to 24 years: a descriptive cross sectional study from Sri Lanka

Associated factors No. Median anti-PT level (IU/ml) P* value
Gender Girl 212 4.6367 <0.003
Boy 173 2.5013
Having a sibling aged more than >12 years Yes 176 4.840 0.017
No 209 2.7654
Exposure to either active or passive smoking Yes 27 2.50 0.882
No 358  
  1. *p value was calculated with Mann-Whitney test
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