Table 6 Bi-variable and multivariable analyses of factor associated with preterm birth among deliveries in Gondar University Comprehensive specialized Hospital, Northwest Ethiopia (n = 455), 2021

Single

1

1

Multiple

2.2(0.78–6.21)

2.6(0.86–7.69)

Number of ANC visits

1 times

2.4(0.21–1.97)

2.1(0.67–6.58)

2–3 times

1.6(0.94–2.39)

1.4(0.43–4.54)

≥ 4 times

1

1

History of perinatal death

1

Yes

1.4(0.9–2.29)

0.9(0.49–1.58)

No

1

1

Birth space

< 3

1

1

3–4

1.0(0.53–1.96)

1.0(0.48–2.15)

5+

1.4(0.82–2.51)

1.3(0.67–2.39)

Medical illness

Yes

1.7(1.1–2.72)

1.2(0.72–2.17)

No

1

1

Fever ≥ 2 weeks

Yes

4.1(2.5–6.8)

3.8(2.13–6.89)**

No

1

1

Antepartum Hemorrhage

Yes

1.9(1.16–3.1)

2.4(1.37–4.10)**

No

1

1

Premature rupture of membrane

Yes

1.7(0.88–3.23)

1.6(0.74–3.40)

No

1

1