Table 1.

Background characteristics of enrolled pregnant women in Siem Reap, Cambodia

Variables	Total (N = 1565)		HBsAg positive (n = 67)		HBsAg negative (n = 1498)		p-value
	Frequency	(%)	Frequency	(%)	Frequency	(%)
Age	mean = 28.3 ± 5.7		mean = 29.4 ± 5.4		mean = 28.2 ± 5.7		0.098
15–19	70	4.47	0	0	70	4.67	0.420
20–24	338	21.60	15	22.39	323	21.56
25–29	540	34.50	20	29.85	520	34.71
30–34	391	24.98	20	29.85	371	24.77
35–39	180	11.50	10	14.93	170	11.35
≥ 40	46	2.94	2	2.99	44	2.94
Education level
≤ Primary School	324	20.7	13	19.4	311	20.76	0.758
High School	857	54.76	35	52.24	822	54.87
University	384	24.54	19	28.36	365	24.37
Occupation of Household
Farmer/Fisherman/Laborer	255	16.29	6	8.96	249	16.62	0.318
Public Officer	217	13.87	10	14.93	207	13.82
Privat Company Employee	495	31.63	26	38.81	469	31.31
Self-Employed	598	38.21	25	37.31	573	38.25
Number of children
1–3	1469	93.87	63	94.03	1406	93.86	0.954
≥ 4	96	6.13	4	5.97	92	6.14
Blood transfusion history
No	1527	97.57	65	97.01	1462	97.60	0.762
Yes	38	2.43	2	2.99	36	2.40
Surgical history
No	1361	86.96	62	92.54	1299	86.72	0.166
Yes	204	13.04	5	7.46	199	13.28
Ever received HepB
Yes	236	15.08	3	4.48	233	15.55	0.029
No	1313	83.9	64	95.52	1249	83.38
Don’t know	16	1.02	0	0	16	1.07