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Table 3 Multivariate logistic and linear regression analyses indicating associations between independent variables and the different outcomes

From: Seasonal influenza vaccination in pregnant women: knowledge, attitudes, and behaviors in Italy

Variable OR SE 95% CI p value
Model 1. Knowledge that influenza is more dangerous for pregnant women (sample size = 372)
Log likelihood = -186.11, χ 2 = 116.25 (8 df), p < 0.0001
Educational level
 College degree or higher 1a    
 None or primary school 0.08 0.06 0.02-0.36 0.001
 Secondary school 0.11 0.05 0.04-0.28 <0.001
Having a high-risk pregnancy 11.43 9.55 2.22-58.85 0.004
Italian nationality 4.97 2.81 1.64-15.09 0.005
Age 1.07 0.03 1.01-1.13 0.011
Having received information about influenza and its vaccination 1.65 0.44 0.97-2.79 0.06
Number of children
 0 1a    
 1 1.67 0.47 0.96-2.91 0.07
Marital status 0.63 0.28 0.26-1.53 0.313
Variable Coeff. SE t p value
Model 2. Positive attitude towards the usefulness of the influenza vaccine in pregnancy (sample size = 372)
F (12, 359) = 14.54, p < 0.0001, R 2 = 0.32%, adjusted R 2 = 0.3%
Age -0.09 0.02 -3.54 <0.001
Having received information about influenza and its vaccination 1.06 0.23 4.57 <0.001
Knowledge that influenza is more dangerous for pregnant women 0.66 0.29 2.23 <0.001
Knowledge that the vaccine could protect pregnant women against influenza 1.21 0.29 4.18 <0.001
Educational level
 College degree or higher 1a    
 None or primary school 0.91 0.58 1.58 0.115
 Secondary school -0.85 0.29 -2.89 0.004
Number of children
 0 1a    
  > 1 -0.82 0.32 -2.58 0.01
Marital status -1.03 0.41 -2.56 0.011
Self-rated health status 0.15 0.07 2.15 0.033
Having a high-risk pregnancy 0.74 0.38 1.94 0.053
Perceive dangerous for the unborn if the women contract the influenza during pregnancy 0.06 0.05 1.05 0.295
Italian nationality 0.42 0.46 0.89 0.375
Variable OR SE 95% CI p value
Model 3. Positive attitude towards willingness to receive the influenza vaccine in pregnancy (sample size = 336)
Log likelihood = -150.08, χ 2 = 48.99 (11 df), p < 0.0001
Positive attitude toward the usefulness of influenza vaccination in pregnancy 1.35 0.11 1.14-1.59 <0.001
Knowledge that the vaccine could protect pregnant women against influenza 3.03 1.24 1.35-6.77 0.007
Number of children
 0 1a    
 1 2.41 0.92 1.15-5.08 0.02
  > 1 3.34 1.62 1.29-8.67 0.013
Knowledge that influenza is more dangerous for pregnant women 0.45 0.19 0.19-1.06 0.068
Italian nationality 2.58 1.59 0.77-8.62 0.122
Perceive dangerous for the unborn if the women contract the influenza during pregnancy 0.89 0.07 0.76-1.05 0.183
Self-rated health status 0.88 0.08 0.72-1.06 0.185
Educational level
 College degree or higher 1a    
 Secondary school 1.44 0.52 0.71-2.92 0.306
Marital status 0.6 0.3 0.22-1.65 0.326
Age 0.97 0.03 0.91-1.03 0.364
  1. aReference category