Table 2 Odds ratios from the random-effects logit models predicting the likelihood of experiencing unintended pregnancy, poor birth outcomes, and post-partum contraceptive use among HIV-positive female adolescents, Kenya

Pregnancy order (ranges from 1 to 4)

1.2

2.5**

0.8

(0.8 – 2.0)

(1.6 – 4.0)

(0.5 – 1.1)

Age at first pregnancy (single years)

0.9

1.1

0.9

(0.8 – 1.1)

(0.9 – 1.3)

(0.8 – 1.1)

Study site (ref=Nyanza)

Coast

0.8

3.1*

0.7

(0.4 – 1.6)

(1.1 – 8.8)

(0.3 – 1.4)

Nairobi

0.9

3.1*

1.2

(0.5 – 1.5)

(1.3 – 7.2)

(0.6 – 2.3)

Rift Valley

0.9

0.4

0.5*

(0.5 – 2.1)

(0.0 – 3.1)

(0.2 – 0.9)

Maternal education level (ref=No schooling)

Primary education

0.7

1.2

1.6

(0.2 – 2.1)

(0.3 – 4.7)

(0.7 – 4.0)

Secondary and above

0.7

1.4

1.8

(0.2 – 2.4)

(0.3 – 6.5)

(0.7 – 4.6)

Paternity status (ref=Boyfriend/ fiancé)

Husband

0.1**

0.3*

1.4

(0.1 – 0.2)

(0.1 – 0.9)

(0.8 – 2.5)

Other^a

3.1

0.8

0.6

(0.7 – 13.4)

(0.3 – 2.4)

(0.3 – 1.3)

Pregnancy was unintended (Yes=1)

n/a

1.3

0.9

(0.5 – 3.3)

(0.5 – 1.5)

Poor birth outcome (Yes=1)

n/a

n/a

0.5

(0.2 – 1.2)

Number of cases

496

467

453