Table 1.

Analysis of risk factors of HB vaccine efficacy and HBV infection rate among high-risk children born to HBeAg-positive mothers.

Factors	Comparison	HB vaccine responders n = 109 (55.6%)	HBsAg carrier n = 21 (10.7%)	Subjects recovered from HBV infection n = 65 (33.2%)	Subjects infected with HBV n = 86 (43.9)	ap	bp	cp
Sex	Male	51 (46.8)	10 (47.6)	28 (43.1)	38 (44.2)	0.944	0.716	0.717
	Female	58 (53.2)	11 (52.4)	37 (56.9)	48 (55.8)
Time interval from birth to HBIG	≤3 h	70 (76.1)	14 (73.7)	39 (70.9)	53 (71.6)	0.777	0.817	0.514
	>3 h	22 (23.9)	5 (26.3)	16 (29.1)	21 (28.4)
Gestational age at birth	≥37 weeks	84 (87.5)	19 (100)	50 (83.3)	69 (87.3)	0.212	0.107	0.975
	<37 weeks	12 (12.5)	0 (0)	10 (16.7)	10 (12.7)
Mode of delivery	CS	20 (20.8)	1 (5.3)	23 (37.7)	24 (30.0)	0.190	0.007∗	0.162
	NSD	76 (79.2)	18 (94.7)	38 (62.3)	56 (70.0)
Maternal gestational diabetes	No	95 (99.0)	19 (100)	57 (95.0)	76 (96.2)	1.000	1.000	0.329
	Yes	1 (1.0)	0 (0)	3 (5.0)	3 (3.8)
Baby's birth body weight	≥2500 g	86 (89.6)	16 (84.2)	53 (88.3)	69 (87.3)	0.448	0.696	0.643
	<2500 g	10 (10.4)	3 (15.8)	7 (11.7)	10 (12.7)
Baby's birth body height	≥45 cm	89 (92.7)	17 (89.5)	52 (86.7)	69 (87.3)	0.642	1.000	0.233
	<45 cm	7 (7.3)	2 (10.5)	8 (13.3)	10 (12.7)
Second stage of labor	≥1 h	27 (35.5)	7 (38.9)	11 (28.9)	18 (32.1)	0.789	0.457	0.685
	<1 h	49 (64.5)	11 (61.1)	27 (71.1)	38 (67.9)
Apgar score at 10 min	≥9	92 (95.8)	19 (100)	56 (93.3)	75 (94.9)	1.000	0.567	1.000
	<9	4 (4.2)	0 ()	(6.7)	4 (5.1)

∗p < 0.01.

^aHB vaccination responders versus HBsAg carriers.

^bHBsAg carriers versus subjects who had recovered from HBV infection.

^cHB vaccination responders versus subjects infected with HBV.