PR^a

[CI 95% of PR]^b

p-value

Age group (year)

[15 - 20]

1.00

<0.001

[20 - 30]

1.85

[1.23 - 2.77]

[30 - 40]

1.71

[1.00 - 2.91]

[40 – 50]

2.36

[1.29 - 4.32]

[50 - 59]

1.21

[0.32 - 4.53]

School level

Illiterate

1.00

<0.001

Primary school level

0.77

[0.41 - 1.44]

Secondary school level

1.79

[1.11 - 2.87]

University level

4.52

[2.84 - 7.18]

Occupation

Civil servant

1

<0.001

Shopkeeper

0.34

[0.22 - 0.52]

Householdwife

0.26

[0.14 - 0.47]

Craftswoman

0.24

[0.14 - 0.40]

Unemployed

0.22

[0.07 - 0.67]

Student

0.45

[0.28 - 0.73]

Self-employed

0.50

[0.29 - 0.85]

Regular attendance at a health facility

Yes

1

<0.001

No

0.45

[0.33 - 0.63]