Table 2 Factors associated with knowledge of mother-to-child transmission of HIV among reproductive-age women

Individual level factors

Age (years)

15–19

1

1

20–24

1.27^***[1.17,1.39]

1.27^***[1.17,1.39]

25–29

1.28^***[1.16,1.43]

1.27^***[1.16,1.42]

30–34

1.44^***[1.29,1.61]

1.41^***[1.27,1.58]

35–39

1.61^***[1.44,1.81]

1.56^***[1.39,1.75]

40–44

1.67^***[1.49,1.89]

1.61^***[1.43,1.81]

45–49

1.74^***[1.54,1.97]

1.65^***[1.46,1.88]

Marital status

not married

1

1

Married

1.03[0.95,1.13]

1.03[0.95,1.13]

Educational status

No education

1

1

Primary

1.58^**[1.12,2.23]

1.55^*[1.10,2.20]

Secondary

2.42^***[1.72,3.41]

2.33^***[1.66,3.29]

Higher

3.07^***[2.17,4.36]

2.92^***[2.06,4.15]

Health insurance

No

1

1

Yes

1.03[0.99,1.09]

1.03[0.99,1.09]

Parity

0

1

1

1

1.18^***[1.08,1.30]

1.19^***[1.08,1.30]

2

1.29^***[1.17,1.44]

1.29^***[1.16,1.43]

3

1.28^***[1.14,1.44]

1.27^***[1.14,1.43]

≥ 4

1.18^**[1.05,1.34]

1.19^**[1.05,1.35]

Frequency of listening to radio

Not at all

1[1.00,1.00]

1

Less than once a week

0.996[0.94,1.06]

0.99[0.94,1.05]

At least once a week

0.939[0.87,1.01]

0.932[0.87,1.00]

Frequency of reading newspaper or magazine

Not at all

1

1

Less than once a week

1.04[0.99,1.11]

1.04[0.99,1.10]

At least once a week

1.16^***[1.07,1.26]

1.14^**[1.06,1.25]

Frequency of using internet last month

Not at all

1

1

Less than once a week

1.10[0.97,1.25]

1.09[0.96,1.24]

At least once a week

1.20^***[1.10,1.31]

1.16^***[1.07,1.27]

Almost every day

1.36^***[1.28,1.46]

1.28^***[1.19,1.38]

Contextual level factors

Distance to health facility

Big problem

1

1

Not a big problem

0.99[0.92,1.08]

0.93[0.87,1.02]

Household wealth index

Poorest

1

1

poorer

1.10^**[1.03,1.20]

1.02[0.94,1.10]

Middle

1.242^***[1.15,1.34]

1.076[0.99,1.17]

Richer

1.36^***[1.26,1.48]

1.11^*[1.02,1.20]

Richest

1.575^***[1.45,1.71]

1.14^**[1.04,1.25]

Type of place of residence

Urban

1

1

Rural

0.69^***[0.65,0.75]

0.79^***[0.74,0.86]

Random effect model

PSU (95%CI)

0.43[0.38–0.48]

0.42[0.37–0.47]

0.39[0.35–0.44]

0.41[0.36-0.46]

ICC

0.1167678

0.1140848

0.108298

0.1017918

Wald chi-square

Reference

754.05***

234.14***

792.84***

Model fitness

Log-likelihood

-23521.453

-23131.761

-23404.466

-23110.426

AIC

47046.91

46311.52

46824.93

46280.85

BIC

47064.09

46517.68

46893.65

46538.55

N

39,735

39,735

39,735

39,735