Table 3 Negative binomial model for association of SARS-CoV-2 vaccination with number of ILI episodes after applying inverse-probability weighting

From: Association of SARS-CoV-2 vaccination status with risk of influenza-like illness and loss of workdays in healthcare workers

 

Model 1: Without Time

Model 2: With Time

Characteristics

aIRR1

95% CI1

p-value

aIRR1

95% CI1

p-value2

Time of last Vaccine

   

1.26

1.12,1.43

1.80e−4

Number of Vaccines

      

 0

 

 

 1 or 2

1.27

1.12,1.43

1.56e−4

0.89

0.71, 1.12

0.316

 3

1.45

1.29,1.63

7.28e−10

0.90

0.68, 1.18

0.447

 4

1.52

1.34,1.73

7.96e−11

0.76

0.52, 1.12

0.165

Influenza vaccination season 2023/2024

0.87

0.79,0.96

0.00630

0.87

0.79, 0.96

0.00647

  1. 1aIRR adjusted Incidence Rate Ratio, CI Confidence Interval, 2using Wald-test.
  2. Model 1 (without time of last vaccination) and model 2 (with time of last vaccination).