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Table 3 Multiple linear regression for factors affecting the knowledge score in mothers

From: Knowledge of mothers regarding children’s vaccinations in Greece: an online cross-sectional study

Characteristics Regression β-Coefficient (95% Confidence Interval) p-value
Age of mother 0.00 (−0.02, 0.03) 0.55
Age of child 0.00 (−0.00, 0.00) 0.83
Marital status
 Married/in cohabitation Ref Ref
 Unmarried −1.34 (−2.64, − 0.05) 0.04
 Divorced/separated/widowed −0.36 (−1.54, 0.75) 0.50
Single parent family 0.02 (−1.04, 1.09) 0.97
Geographical area
 Attica Ref Ref
 Central Greece 0.01 (−0.34, 0.37) 0.95
 North Greece −0.22 (− 0.48, 0.05) 0.11
 Crete/Aegean Islands −0.12 (− 0.49, 0.25) 0.521
Residency
 Urban Ref Ref
 Rural 0.11 (−0.23, 0.45) 0.51
Educational attainment
 Primary education Ref Ref
 Secondary education 1.83 (0.30, 3.36) 0.02
 Higher education 2.42 (0.89, 3.95) < 0.01
Employment status
 Private employee Ref Ref
 State employee −0.05 (−0.36, 0.26) 0.75
 Freelance −0.20 (− 0.51, 0.11) 0.21
 Unemployed −0.15 (− 0.44, 0.14) 0.30
Income status
 None/Low income Ref Ref
 Medium income 0.65 (−0.07, 1.37) 0.08
 High income 0.78 (0.07, 1.50) 0.03
  1. Bold indicates statistically significant at P < 0.05
  2. Linear regression model treating knowledge as the dependent variable and each characteristic as the independent variable