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Table 2 Factors associated with HIV infection among women of all ages.

From: Trends in HIV & syphilis prevalence and correlates of HIV infection: results from cross-sectional surveys among women attending ante-natal clinics in Northern Tanzania

    

CRUDE

 

ADJUSTED

 

N

% HIV+

OR

95% CI

p

OR

95% CI

p

Age group

        

14-19

803

3.2

0.40

0.26-0.61

0.000

0.44

0.25-0.76

0.006

20-24

1140

7.8

1

  

1

  

25-29

903

9.8

1.28

0.93-1.75

0.120

1.28

0.80-2.04

0.277

30-34

601

9.7

1.26

0.95-1.67

0.095

1.25

0.79-1.96

0.315

35+

392

7.7

0.98

0.69-1.39

0.897

1.15

0.53-2.48

0.707

Number of pregnancies, grouped

        

First pregnancy

932

5.0

0.48

0.31-0.72

0.002

1.70

0.87-3.33

0.114

gravidity 2

801

8.2

0.80

0.59-1.10

0.154

0.84

0.58-1.22

0.337

gravidity 3

637

10.1

1

  

1

  

gravidity 4

804

8.7

0.85

0.63-1.16

0.284

0.68

0.49-0.95

0.026

gravidity 5+

665

6.6

0.63

0.44-0.92

0.020

0.57

0.32-1.03

0.062

Ever had a stillbirth/miscarriage

        

Never had a stillbirth/miscarriage

3509

7.4

1

     

Had a stillbirth/miscarriage

329

9.7

1.35

0.95-1.93

0.091

   

Time of most recent birth 1

        

No previous births/last birth within 2 years

1713

5.2

1

  

1

  

Last birth >2 years ago

2074

9.4

1.89

1.45-2.47

<0.001

1.71

1.08-2.71

0.026

Survival of last birth child 1

        

Last child born still alive/no last born child

3500

6.9

1

  

1

  

Last child born died

287

15.3

2.46

1.75-3.45

<0.001

2.09

1.36-3.22

0.003

Time between first sex and marriage 2

        

Years between first sex and marriage

6153

 

1.1

1.05-1.15

<0.001

1.08

1.04-1.13

0.001

Cohabitation status

        

Never cohabited

206

9.7

1.39

0.80-2.41

0.224

   

Currently married/cohabiting

3409

7.2

1

     

Married but not living with baby's father

138

8.7

1.23

0.56-2.72

0.585

   

Been married but not living with baby's father

86

16.3

2.51

1.19-5.28

0.019

   

Number of marriages

        

None or one

3257

6.4

1

     

Been married more than once

582

14.4

2.49

1.75-3.53

0.000

2.73

1.76-4.23

0.000

Had other sexual partners in last 12 months

        

No other partners

3689

7.4

1

     

Had >1 partner in last year

126

12.7

1.81

1.11-2.95

0.020

   

DK/refused to say about partners in last year

24

4.2

0.54

0.05-6.07

0.595

   

Travelled to clinic by:

        

Foot

2782

7.9

1

     

Bicycle

714

5.2

0.63

0.45-0.89

0.013

   

Bus

204

10.3

1.33

0.74-2.38

0.310

   

Car/motorbike/canoe

139

8.6

1.09

0.55-2.17

0.780

   

Ever been tested for HIV

        

Never previously tested

3683

7.4

1

     

Tested before this pregnancy

151

9.9

1.38

0.80-2.37

0.226

   

Tested this pregnancy

5

60

18.74

4.03-87.2

0.001

   

Married less than a year

        

Married >1 year

3182

8.0

1

0.29-0.79

    

Married <1 year

431

3.9

0.48

0.69-2.05

0.007

0.54

0.32-0.91

0.025

Never married

226

9.3

1.19

 

0.516

1.37

0.73-2.59

0.306

Personal preference

        

Chose clinic for other reasons

3759

7.5

1

     

Chose clinic for personal preference

80

11.3

1.56

0.98-2.49

0.059

   

Straight line distance to clinic

        

Distance (km)

7238

 

0.97

0.94-0.99

0.023

   

Number of women

  

3839

  

3114

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