Table 1 Incidence rate ratios for SARS-CoV-2 vaccination and GBS following vaccination.

From: Real-world data on the incidence and risk of Guillain–Barré syndrome following SARS-CoV-2 vaccination: a prospective surveillance study

 

Univariable analysis

Multivariable analysis

IRR

Lower

Upper

P value

IRR

Lower

Upper

P value

Dose

 1st

1

   

1

   

 2nd

0.739

0.423

1.291

0.288

0.804

0.458

1.411

0.447

 3rd

0.187

0.066

0.529

0.002

0.331

0.110

0.997

0.049

Vaccine mechanism

 mRNA

1

   

1

   

 Viral vector

5.584

3.289

9.480

< 0.001

3.745

1.979

7.087

< 0.001

Age (years)

 < 30

1

   

1

   

 30–59

0.835

0.312

2.236

0.720

0.718

0.265

1.946

0.515

 ≥ 60

2.020

0.786

5.196

0.145

1.083

0.387

3.032

0.880

Sex

 Women

1

   

1

   

 Men 

2.299

1.297

4.072

0.004

2.285

1.289

4.051

0.005

  1. IRR incidence rate ratio.
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