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Table 1 The prevalence of HBsAg, anti-HBc and anti-HBs among pregnant women in the different age groups

From: Chronic HBV infection among pregnant women and their infants in Shenyang, China

Age group

HBsAg

OR

anti-HBc

OR

anti-HBs

OR

 

Positive

Negative

 

Positive

Negative

 

Positive

Negative

 

less than 20 years old

2

152

1.0@

11

143

1.0@

107

47

1.0@

n=154

(1.30%)

(98.70%)

 

(7.14%)

(92.86%)

 

(69.48%)

(30.54%)

 

older than 20 years

247

4135

4.54

1334

3048

5.69

2549

1833

0.61

n=4382

(5.64%)

(94.36%)

 

(30.44%)

(69.56%)

 

(58.17%)

(41.83%)

 

total

249

4287

 

1345

3191

 

2656

1880

 

n=4536

(5.49%)

(94.51%)

 

(29.65%)

(70.35%)

 

(58.55%)

(41.45%)

 

X2

4.59

 

37.61

 

7.38

 

P

< 0.05

 

< 0.01

 

< 0.05

 
  1. @-reference category.