Variables

Preterm, n (%)

Term, n (%)

COR (95%CI)

AOR (95%CI)

Age in years

<18

2 (25%)

6 (75%)

Reference

Reference

18 - 30

33 (19.6%)

135 (80.4%)

1.64 (0.54 - 1.60)

1.64 (0.54 - 1.60)

≥31

2 (28.6%)

5 (71.4%)

2.37 (1.12 - 4.70)

2.81 (1.24 - 5.87)*

Marital status

Married

31 (19.5%)

128 (80.5%)

Reference

Reference

Single

5 (27.8%)

13 (72.2%)

1.59 (0.88 - 2.55)

2.20 (0.86 - 4.65)

Divorced

1 (16.7%)

5 (83.3%)

0.82 (0.44 - 1.77)

0.83 (0.44 - 1.77)

Religion

Christian

36 (20.9%)

136 (79.1%)

2.65 (1.38 - 5.17)

2.00 (0.86 - 4.65)

Muslim

1 (9.1%)

10 (90.9%)

Reference

Reference

Occupation status

Self employed

26 (21.7%)

94 (78.3%)

1.75 (0.88 - 2.55)

Government/private employee

1 (16.7%)

5 (83.3%)

1.27 (0.47 - 3.15)

Student

4 (30.8%)

9 (69.2%)

2.81 (1.06 - 8.23)

2.34 (0.64 - 5.88)

Housewife

6 (13.6%)

38 (86.4%)

Reference

Reference

Level of education

Primary

9 (23.7%)

29 (76.3%)

Secondary

21 (17.1%)

102 (82.9%)

Tertiary

7 (31.8%)

15 (68.2%)

Parity

≤3

34 (20.1%)

135 (79.9%)

Reference

≥4

3 (21.4 %)

11 (78.6%)

1.08 (0.50 - 2.12)

Inter-pregnancy interval (child space)

≤2 years

6 (42.9%)

8 (57.1%)

3.41 (1.06 - 10.06)

2.68 (0.82 - 8.75)

>2 years

24 (18.1%)

109 (81.9%)

Reference

Reference

Para 1

7 (19.4%)

29 (80.6%)

1.09 (0.50 - 2.12)

History of abortion

Yes

6 (42.9%)

8 (57.1%)

3.34 (1.07 - 10.06)

3.54 (1.18 - 10.41)**

No

31 (18.3%)

138 (81.7%)

Reference

Reference

History of preterm birth

Yes

14 (46.7%)

16 (53.3%)

4.95 (1.06 - 10.06)

5.8 (1.18-10.30)***

No

23 (15.0%)

130 (85.0%)

Reference

Reference