Hepatitis B Birth Dose Vaccination among Vietnamese Children: Implications for the Expanded Program on Immunization

Table 1

Prevalence of receiving timely the birth dose of hepatitis B vaccination by selected socioeconomic factors among Vietnamese children aged 0–23 months, MICS 2014 (n=1382).

Characteristics	Un-weighted sample size	Weighted prevalence	Chi-Square
	n (weighted %)	% (95%CI)	p-value
Sex			0.7
Male	741(54)	62.3(57.6,66.7)
Female	641(46)	63.4(58.8,67.7)
Low birth weight			<0.01
No	1311(95.4)	63.8(60.2,67.3)
Yes	71(4.6)	41.6(29.2,55.2)
Mother’s age			<0.01
<20	91(5.5)	35.3(25.0,47.3)
20-35	1131(83.4)	64.6(60.8,68.2)
36-49	160(11.1)	62.7(53.8,70.8)
Mother’s education			<0.01
Primary or less	259(16.1)	42.7(34.0,51.8)
Lower secondary	479(36.4)	63.6(58.6,68.4)
Upper secondary and tertiary	644(47.5)	68.9(64.5,73.1)
Ethnicity			<0.01
Kinh	1062(83.7)	69.1(65.6,72.4)
Minority	320(16.3)	30.3(23.7,37.9)
Area			<0.01
Urban	526(29.8)	69.6(64.5,74.3)
Rural	856(70.2)	59.9(55.2,64.4)
Mother’s wealth status			<0.01
1st quintile (poorest)	329(19.3)	38.6(31.3,46.4)
2nd quintile	245(19.6)	66.2(59.2,72.6)
3rd quintile	250(20.1)	62.2(55.5,68.5)
4th quintile	284(21.5)	76.7(69.8,82.4)
5th quintile (richest)	274(19.5)	68.5(62.1,74.3)
Overall	1382(100)	62.8(59.2,66.3)

CI: confidence interval.