Table 4

Multivariate analysis of factors associated with adolescent pregnancy.

OR

95%CI

p value

Transferred

3.85

2.57–5.78

<0.001

Gravidity

Parity

Nulliparous

Primiparous

0.42

0.23–0.76

0.004

Pauciparous & multiparous

0.07

0.03–0.18

<0.001

Abortion

1.01

0.58–1.75

0.964

Caesarean

0.69

0.35–1.37

0.295

Age of first prenatal consultation

Trimester 1

Trimester 2

3.09

2.21–4.32

<0.001

Trimester 3

6.98

3.08–15.82

<0.001

Postterm pregnancy

0.31

0.07–1.32

0.115

Number of prenatal consultation ≥4

0.48

0.33–0.69

<0.001

Prenatal check-up

0.68

0.47–0.98

0.037

Pathology in pregnancy

1.52

0.52–4.42

0.446

Excessive fundal height

1.18

0.80–1.76

0.397

Fetal heart sound

1.16

0.67–2.00

0.594

Fetal cephalic presentation

1.47

0.86–2.51

0.153

Pelvic mearsurement

Normal(i)

Limit(ii)

11.15

4.19–29.68

<0.001

Narrowed(iii)

27.37

4.23–176.89

0.001

Excision

1.09

0.56–2.12

0.789

Vaginal delivery

0.91

0.65–1.27

0.574

Postpartum abnormality

0.84

0.39–1.77

0.642

Hypertension

2.64

1.16–5.99

0.020

Infection

6.41

0.95–43.32

0.057

Birth weight (g)

<2500

[2500–3800]

1.41

0.78–2.56

0.254

>3800

0.26

0.08–0.84

0.025

Prematurity

1.86

1.12–3.09

0.016

Malformation

0.13

0.02–0.76

0.024

Reanimation

0.29

0.21–0.41

<0.001

Perinatal death

0.90

0.45–1.79

0.771

Neonatal intensive care

1.84

0.87–3.90

0.108

Maternal death

0.27

0.08–0.93

0.038

  • (i) manual Magnin Index (MI) ≥23 ​cm; (ii) MI<21–23 ​cm; (iii) MI<21 ​cm.

    Note: MI ​= ​obstetric conjugate diameter (OCD) ​+ ​median transverse diameter (MTD).