Table 4 Logistic regression analysis of maternal factors associated with perinatal death and PTD

Outcome

Risk factor

OR (95% CI)

P value

AOR (gravidity) (95% CI)¹

P value

AOR (age) (95% CI)²

P value

Perinatal death

Primigravid

1.89 (1.05–3.42)

0.03

1.85 (1.02–3.34)

0.04

Secundigravid

1.05 (0.51–2.19)

0.9

1.05 (0.50–2.17)

0.9

Multigravid

Reference

Grand multigravid

1.33 (0.59–3.03)

0.5

1.34 (0.59–3.04)

0.5

< 20

2.13 (1.28–3.57)

0.004

2.09 (1.25–3.50)

0.005

20–35

Reference

> 35

1.50 (0.52–4.35)

0.5

1.55 (0.54–4.48)

0.4

> = 1 dose SP-IPTp

0.63 (0.19–2.08)

0.5

Used ITN

0.48 (0.21–1.08)

0.07

0.52 (0.22–1.13)

0.1

0.51 (0.22–1.15)

0.1

ANC visits³

−0.01 (−0.20–0.19)

0.9

At least 1 known risk factor

1.17 (0.62–2.22)

0.6

Delivery mode⁴

2.34 (0.82–6.72)

0.1

PTD

Primigravid

3.24 (1.87–5.63)

< 0.0001

3.25 (1.87–5.65)

< 0.0001

Secundigravid

2.10 (1.12–3.92)

0.02

2.19 (1.17–4.11)

0.01

Multigravid

Reference

Grand multigravid

1.64 (0.74–3.65)

0.2

1.68 (0.754–3.73)

0.2

< 20

2.13 (1.35–3.36)

0.001

2.14 (1.35–3.39)

0.001

20–35

Reference

> 35

2.35 (1.07–5.16)

0.03

2.32 (1.05–5.10)

0.04

> = 1 dose SP-IPTp

0.85 (0.26–2.77)

0.8

Used ITN

1.18 (0.42–3.30)

0.7

ANC visits³

0.15 (−0.03–0.34)

0.1

At least 1 known risk factor

1.10 (0.66–1.82)

0.7

Delivery mode⁴

3.16 (1.38–7.24)

0.006

3.25 (1.40–7.56)

0.006

3.20 (1.39–7.38)

0.006