Table 1

Risk of maternal deaths by demographic and pregnancy-related factors among women, rural Tanzania, 1995–96

Variable
ANC attendeesa
Maternal deaths Cases 1b
ORc (95%CI)
Maternal deaths Cases 2d
ORc (95%CI)

Total e
135
45

31

Age





     15–24 years
65
14
1.0
9
1.0
     25–34 years
56
18
1.5 (0.7–3.3)
12
1.6 (0.6–4.0)
     35–49 years
14
12
4.0 (1.5–10.6)
9
4.1 (1.3–12.4)
Ward groups f





     1
54
4
1.0
3
1.0
     2
6
7
18.0 (2.6–123)
6
17.2 (2.1–143)
     3
27
11
1.4 (0.3–6.9)
6
1.8 (0.3–10.8)
     4
38
15
2.8 (0.7–11.7)
13
3.3 (0.6–17.1)
     5
5
5
23.1 (2.0–271)
1
30.1 (1.1- 823)
     6
5
3
7.6 (0.8–76.7)
2
4.5 (0.3–69.6)
Woman's ethnic affiliation





     Iraqw
111
31
1.0
23
1.0
     Datoga
22
8
1.3 (0.5–3.3)
5
1.2 (0.4–3.7)
     Other
2
6
13.6 (2.5–75.0)
3
7.3 (1.1–50.0)
Husband's ethnic affiliation





     Iraqw
95
29
1.0
21
1.0
     Datoga
25
9
1.3 (0.5–3.1)
8
1.6 (0.6–4.2)
     Other
4
2
2.3 (0.4–13.7)
1
1.5 (0.2–14.4)
Woman's religious affiliation





     Christian
104
27
1.0
19
1.0
     Traditional/other
30
18
2.1 (1.0–4.5)
12
2.0 (0.8–4.9)
Husband's religious affiliation





     Christian
84
18
1.0
11
1.0
     Traditional/other
38
22
2.6 (1.2–5.7)
19
3.6 (1.5–8.7)
Woman's education





     1–7 years school
96
24
1.0
18
1.0
     No school
38
15
1.2 (0.5–2.6)
12
1.3 (0.5–3.1)
Husband's education





     1–7 years school
92
20
1.0
16
1.0
     No school
32
17
2.2 (1.0–5.0)
12
2.0 (0.8–5.1)
Parity





     Pregnancy 1
36
10
1.5 (0.6–3.9)
8
1.9 (0.6–5.7)
     Pregnancy 2–4
56
16
1.0
10
1.0
     Pregnancy 5–15
43
17
0.5 (0.2–1.5)
13
0.7 (0.2–2.3)
Previous abortions





     No abortions
115
41
1.0
30
1.0
     1–3 abortions
20
2
0.2 (0.04–1.0)
1
0.2 (0.02–1.2)
Previous stillbirths





     No stillbirths
122
38
1.0
26
1.0
     1–2 stillbirths
13
5
1.1 (0.4–3.3)
5
1.7 (0.5–5.3)
Previous perinatal deaths





     No perinatal deaths
110
34
1.0
24
1.0
     1–3 perinatal deaths
25
9
0.9 (0.4–2.3)
7
1.2 (0.4–3.1)

a Antenatal clinic attendees (control group)

b Cases 1 – all maternal deaths found in the study

c Adjusted for age and ward (place of residence)

d Cases 2- all maternal deaths of women who attended any antenatal clinic during last pregnancy

e There were various numbers of missing cases and controls in the different groups

f Wards grouped according to location: 1 = Haydom (reference), 2 = Dongobesh+Tumati+Bashay; 3 = Basotu+Basodesh; 4 = Maghang+Maretadu; 5 = Laghanga+Getanwas+Hirbadaw; 6 = Yaeda Chini.

Evjen-Olsen et al. BMC Public Health 2008 8:52   doi:10.1186/1471-2458-8-52