Table 2 GEE logistic regression on predicting parental preferred type of SIV (N = 376)

From: Parental vaccine hesitancy and influenza vaccine type preferences during and after the COVID-19 Pandemic

Determinants

Odds Ratio

SE

95% CI

Baseline vaccine hesitancy

 Low vaccine hesitancy

Ref

Ref

Ref

 Moderate vaccine hesitancy

1.22

0.25

0.75, 2.00

 High vaccine hesitancy

1.92*

0.32

1.02, 3.59

Time perioda

 Pre-pandemic

Ref

Ref

Ref

 Pandemic Pre-vaccine

0.61

0.21

0.60, 1.35

 Pandemic Post-vaccine

1.63*

0.20

1.09, 2.42

Vaccine hesitancy * Time period

1.13

0.38

0.54, 2.38

Age (year)

 18-34

Ref

Ref

Ref

 35-44

1.14

0.23

0.72, 1.78

 45 or above

1.39

0.28

0.81, 2.40

Self-reported gender

 Male

Ref

Ref

Ref

 Female

0.58**

0.18

0.41, 0.83

Educational attainment

 Secondary or below

Ref

Ref

Ref

 Tertiary or above

1.28

0.20

0.86, 1.90

Monthly household income (HKD)

 Below 30,000

Ref

Ref

Ref

 30,000-59,999

1.64*

0.22

1.07, 2.53

 60,000 or above

1.59

0.27

0.93, 2.70

  1. “GEE”: Generalized Estimating Equation; “SIV”: seasonal influenza vaccine.
  2. SE: Standard Error. 95%CI: 95% Confidence Interval. Ref: Reference group.
  3. a COVID-19 pandemic periods: Pre-pandemic (Sept-Dec 2019); Pandemic Pre-vaccine (Sept-Dec 2020); and Pandemic Post-vaccine (Sept-Dec 2021).
  4. ***P < 0.001; **P < 0.01; *P < 0.05. Bold values are significant.
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