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Table 2 Socio-demographical characteristics of the ANC attendees in association with HIV infection in Tanzania 2011

From: Prevalence of HIV and syphilis infections among pregnant women attending antenatal clinics in Tanzania, 2011

Variables

Number

HIV Prevalence (%)

cOR (95 % CI)

P-value

adOR (95 % CI)

P-value adOR

Marital status

      

Married

34,543

5.4

1

 

1

 

Single

4565

6.8

1.28(1.13–1.45)

<0.05

1.76(1.55–2.02)

<0.05

Divorced

78

5.1

1.67(0.84–3.32)

0.14

1.00(0.36–2.77)

0.99

Other

103

8.7

0.95(0.35–2.59)

0.91

1.84(0.92–3.68)

0.09

Age group

      

15–24

19,316

3.9

1

 

1

 

25–34

16,321

7.3

1.97(1.791–2.16)

<0.05

1.90(1.70–2.13)

<0.05

35+

3725

7.0

1.88(1.62–2.17)

<0.05

2.30(1.93–2.76)

<0.05

Not stated

336

4.1

1.08(0.63–1.85)

0.77

1.03(0.59–1.82)

0.90

Previous pregnancy

      

0

10,487

3.45

1

 

1

 

1–2

16,401

6.48

1.94(1.71–2.19)

<0.05

1.67(1.45–1.91)

<0.05

3–4

8121

7.25

2.19(1.92–2.59)

<0.05

1.59(1.35–1.89)

<0.05

>5

4004

4.2

1.23(1.018–1.48)

<0.05

0.88(0.69–1.11)

0.291

Not stated

694

4.9

1.44(1.05–2.07)

<0.07

1.25(0.86–1.82)

0.23

Residence

      

Urban

20,397

6.59

1

 

1

 

Semi Urban

10,680

5.82

0.88(0.79–0.96)

<0.05

0.90(0.82–0.99)

<0.05

Rural

8621

3.13

0.46(0.40–0.52)

<0.05

0.48(0.42–0.56)

<0.05

Education

      

No formal education

6017

4.5

1

 

1

 

Adult education

255

3.9

0.75(033–1.74)

0.51

1.22(0.44–3.38)

0.71

Primary education

27,222

6

0.65(0.23–1.85)

0.42

0.99(0.29–3.23)

0.99

Secondary

5521

4.9

1.02(0.45–2.34)

0.95

1.29(0.47–3.58)

0.62

Post secondary

581

2.9

0.83(0.36–1.91)

0.66

1.04(0.37–2.89)

0.94

Not stated

102

5.9

0.48(0.19–1.25)

0.14

0.55(0.18–1.68)

0.29

Duration of stay

      

Less than 6 months

4991

5.3

1

 

1

 

6 months and above

33,985

5.5

0.81(0.59–1.12)

0.20

0.88(0.63–1.22)

0.45

Not stated

722

6.5

0.85(0.63–1.15)

0.29

0.82(0.60–1.11)

0.19

  1. cOR crude odd ratio, aOR adjusted odd ratio, CI confidence interval