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Table 2 Associated factors for maternal influenza vaccination among pregnant or postpartum women

From: Influenza vaccination during pregnancy and influencing factors in Korea: A multicenter questionnaire study of pregnant women and obstetrics and gynecology doctors

Factors Univariate Multivariate
Crude ORa 95% CIb p-value Adjusted OR 95% CI p-value
Ever received information about influenza vaccination
No 1    1   
Yes 8.51 4.01–18.08  < 0.001 8.9c 4.17–19.01  < 0.001
Source of information
No 1    1   
Non-OBGYNd doctors, public health care, media, friends, and family 4.37 2.02–9.44  < 0.001 4.38c 2.01–9.55  < 0.001
OBGYN doctor 11.45 5.49–23.87  < 0.001 11.44c 5.46–24.00  < 0.001
Pregnancy period
1st trimester 1    1   
2nd or 3rd trimester or postpartum 2.76 1.45–5.25 0.002 2.41e 1.21–4.82 0.013
Influenza vaccination in previous pregnancy
No 1      
Yes 1.25 0.80–1.96 0.321    
  1. aOR, odds ratio; bCI, confidence interval
  2. cAdjusted for maternal age, education, occupation, location of residence, and pregnancy period
  3. dOBGYN, obstetrics and gynecology
  4. eAdjusted for maternal age, education, occupation, location of residence, and other covariates