Determinants of Preterm Birth among Women Who Gave Birth in Amhara Region Referral Hospitals, Northern Ethiopia, 2018: Institutional Based Case Control Study
Table 3
Determinants of preterm birth among mothers who gave birth in Amhara referral hospitals, Northwest Ethiopia, 2019 ().
Variable
Case number (%)
Control number (%)
COR 95% CI
AOR with 95% CI
Age (in year)
<20
3 (2.2)
11 (4.1)
0.5 (0.13,2.1)
0.3 (0.22, 1.27)
20–34
104 (77.1)
227 (84.1)
1
1
≥35
28 (20.7)
32 (11.9)
1.9 (1.0, 3.3)
1.53 (0.04, 1.68)
Residences
Rural
71 (52.6)
95 (35.2)
2.04 (1.34, 3.11)
0.5 (0.1, 2.1)
Urban
64 (47.4)
175 (64.8)
1
1
Educational status
No formal education
64 (47.4)
70 (25.9)
2.87 (1.79, 4.59)
2.24 (1.28, 3.91)
Primarily
23 (17.0)
49 (18.1)
1.47 (0.81, 2.67)
1.30 (0.66, 2.56)
Secondary and above
48 (35.6)
151 (55.9)
1
1
HGB level
HGB < 11
13 (9.6)
11 (4.1)
2.5 (1.09,5.76)
2.75 (1.11, 7.31)
HGB ≥ 11
122 (90.4)
256 (95.6)
1
1
Family size
≤5
114 (84.4)
254 (94.1)
2.92 (1.47, 5.81)
0.3 (0.07, 1.86)
>5
21 (15.6)
16 (5.9)
1
Parity
1
59 (43.7)
150 (55.6)
0.76 (0.49, 1.19)
0.67 (0.31, 1.26)
2–5
54 (40.0)
105 (38.9)
1
≥5
22 (16.3)
15 (5.6)
2.85 (1.36, 5.9)
1.3 (0.2, 7.9)
PIH
Yes
35 (25.9)
32 (11.9)
2.6 (1.52, 4.43)
4.74 (2.49, 9.0)
No
100 (74.1)
238 (88.1)
1
PROM
Yes
32 (23.7)
21 (7.8)
3.68 (2.02, 6.68)
6.4(3.23, 12.77)
No
103 (76.3)
249 (92.2)
1
1
Bad obstetrics history
Yes
34 (25.2)
43 (15.9)
1.77 (1.07, 2.95)
1.8 (0.9, 3.7)
No
101 (74.8)
227 (84.1)
1
Multiple pregnancy
Yes
21 (15.6)
12 (4.4)
3.96 (1.88, 8.3)
4.1 (1.7, 9.8)
No
114 (84.4)
258 (95.6)
1
1
Abortion
Yes
25 (18.5)
18 (6.7)
3.18 (1.6, 6.07)
2.92 (1.3, 6.4)
No
110 (81.5)
252 (93.3)
1
1
Distances (hours)
<1 hour
105 (77.8)
141 (89.3)
2.3 (1.35, 4.15)
0.6 (0.4, 1.6)
≥1 hour
30 (22.2)
29 (10.7)
1
1
Bold values denote for statistical significant associations.
