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Table 2 Seroprevalence of pandemic (H1N1) 2009 in cats of different ages and genders, in northeastern China using the NT and HI assay

From: Serological report of pandemic (H1N1) 2009 infection among cats in Northeastern China in 2012-02 and 2013-03

Variable Class Positive rate
NT HI
Gender Male 28.3%(163/576) 26.5%(153/576)
Female 17.6%(99/564) 16.3%(92/564)
Variable A n Unadjusted OR (95% CI) Adjusted OR (95% CI)
Raising pattern    
Age    
Less than 4 years 770 1.5 [0.71-1.93] 0.97 [0.66-1.39]
4 years and more 250 Reference -
Gender    
  Male 516 1.72 [1.12-1.99] 1.44 [0.91-1.70]
  Female 504 Reference -
  1. AUnadjusted and adjust with logistic regression odds ratios for elevated HI and NT antibodies against pandemic (H1N1) influenza A virus among different cat populations in northeastern China.