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Table 2 Adjusted influenza A virus (IAV) positive proportions and prevalence ratio

From: Farm management practices associated with influenza A virus contamination of people working in Midwestern United States swine farms

Variable

Adjusted IAV positive proportion

Standard error

Prevalence ratio (95% CI)

P-value

Processing

0.15

0.04

Reference

–

Vaccination

0.94

0.15

6.20 (5.91–6.49)

 < 0.0001

Weaning

0.91

0.18

5.98 (5.62–6.33)

 < 0.0001

Hands

0.46

0.08

Reference

–

Coverall

0.55

0.10

1.19 (0.99–1.39)

0.42

Farm A

0.49

0.09

Reference

–

Farm B

0.48

0.14

0.97

0.99

Farm C

0.56

0.10

1.13

0.86

  1. Adjusted influenza A virus (IAV) positive proportions and prevalence ratios obtained from a generalized mixed regression model to evaluate the associations between farm activities and IAV detection in farmworkers’ hands and coveralls. Influenza A virus rRT-PCR detection was used as a dependent variable with sample type, activity performed, and farm identification as predictor variables
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Porcine Health Management

ISSN: 2055-5660

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