Table 1: social demographic characteristic of the pregnant women
Characteristic	Number (n=287)	Number (%) HBsAg(+)
Age Years
15-19	17(5.9%)	(0%)
20-24	91(31.7%)	4(4.4%)
25-29	102(35.5%)	2(2.1%)
30-34	50(17.4%)	2(4%)
35-39	21(7.3%)	2(9.5%)
40-44	5(1.7%)	1(20%)
45-49	1(0.3%)
Education level
No formal Education	3 (1.0%)	0%
Primary	81(28.2%)	5(6.2%)
Secondary	128(44.6%)	5(3.9%)
Higher	75(26.1%)	1(1.3%)
Occupation
Employed formal sector	32(11.1%)	0%
Employed in formal sector	134(46.7%)	4(2.9%)
Not employed	121(42.2%)	7(5.5%)
Marital  status
Married	243(84.7%)	11(4.5%)
Cohabiting	9(3.1%)	0
Single	35(12.2%)	0
Gravidity
Primagravida	134(46.6%)
Multigravida	153(53.3%)	8(5.5%)
Pregnancy  stage
1st  Trimester	41(14.3%)	3(7.3%)
2nd  Trimester	93(32.4%)	4(4.3%)
3rdTrimester	153(53.3%)	4(2.6%)
*Mean age =26.7 SD=±5.5  , Mean gestation period = 23.9 weeks SD=± 9