Table 1 Independent variables and categorization

  Age of child (months)

(1) 12–23; (2) 24–35

  Sex of the child

(1) Male; (2) Female

  Birth order

(1) 1; (2) 2–3; (3) 4–5; (4) 6+

  Acceptance of the child

(1) Wanted then, (2) Wanted later & (3) Wanted no more

  DPT1-HepB1-Hib1

(0) Not vaccinated; (1) Vaccinated

  DPT3-HepB3-Hib3

0) Not vaccinated; (1) Vaccinated

  Mother’s age (years)

(1)15–19; (2) 20–34; (2) 35–49

  Religion

(1)Orthodox; (2)Muslim; (3)Protestant; (4) Others

  Mother’s education

(1) No education; (2)Primary; (3) Secondary and higher

  Father’s education

1) No education; (2)Primary; (3) Secondary and higher

  Wealth index

(1) Poorest; (2)Poorer; (3) Rich; (4) Richer; (5)Richest

  Sex of household head

(1) Male; (2) Female

  Number of living children

(1) 1; (2) 2–3; (3) 4–5; (4) 6+

  Head of household

(1) Male; (2) Female

  Mother’s relation to the head of the household

(1) Wife; (2) head; (3)Daughter; (4) Others

  Regular media exposure

(0) No; (1) Yes

 Residence

(1) Urban; (2) Rural

 Region

(1) Addis Ababa; (2)Tigray; (3) Afar; (4) Amhara; (5) Oromiya; (6) Somali; (7) Benishangul-Gumuz; (8) SNNPR; (9) Gambella; (10) Harari; (11) Dire Dawa

 Distance to health facility

(1) A big problem, (2) Not a big problem