|
Sociodemographic variables
|
|
Maternal age (years)
|
|
< 20
|
4571
|
19.1
|
34.7
|
33.5
|
31.8
|
|
20 to 34
|
16807
|
70.4
|
46.2
|
25.3
|
28.6
|
|
35 and over
|
2509
|
10.5
|
52.0
|
12.8
|
35.2
|
|
Schooling level
|
|
≤ 7 years
|
6017
|
26.6
|
39.6
|
21.4
|
39.1
|
|
8 to 11 years
|
12537
|
25.6
|
44.6
|
26.5
|
28.9
|
|
12 or more years
|
5472
|
39.0
|
59.3
|
24.8
|
16.0
|
|
Skin color
|
|
White
|
8701
|
36.2
|
52.7
|
23.8
|
23.5
|
|
Black
|
1879
|
7.8
|
40.8
|
23.1
|
36.1
|
|
Brown
|
13191
|
54.9
|
43.7
|
25.6
|
30.7
|
|
Yellow
|
265
|
1.1
|
41.3
|
29.9
|
28.8
|
|
Individual variables
|
|
Marital status
|
|
With partner
|
19440
|
81.4
|
49.5
|
25.0
|
25.5
|
|
Without partner
|
4432
|
18.6
|
22.9
|
28.0
|
49.1
|
|
Has paid work
|
|
No
|
14272
|
59.7
|
40.5
|
26.6
|
32.8
|
|
Yes
|
9616
|
40.3
|
50.5
|
23.9
|
25.6
|
|
Alcohol use
|
|
No
|
20070
|
86.0
|
46.2
|
25.5
|
28.3
|
|
Yes, but with no alcoholism risk
|
922
|
4.0
|
43.1
|
24.8
|
32.2
|
|
Yes, with alcoholism risk
|
2340
|
10.0
|
34.3
|
26.4
|
39.3
|
|
Tobacco use
|
|
No
|
21579
|
90.4
|
45.7
|
26.2
|
28.1
|
|
Yes
|
2296
|
9.6
|
33.7
|
19.5
|
46.8
|
|
Parity
|
|
Primiparous
|
9910
|
41.5
|
51.5
|
29.4
|
19.1
|
|
1
|
6697
|
28.0
|
46.6
|
26.0
|
27.5
|
|
2
|
3702
|
15.5
|
33.0
|
19.1
|
47.9
|
|
3 or more
|
3575
|
15.0
|
22.5
|
14.9
|
62.6
|
|
Adverse obstetric outcomes in previous pregnancya
|
|
Neonatal death
|
|
No
|
12254
|
96.6
|
38.1
|
22.2
|
39.7
|
|
Yes
|
432
|
3.4
|
50.3
|
17.8
|
31.9
|
|
Stillbirth
|
|
No
|
12129
|
95.6
|
35.7
|
16.6
|
32.7
|
|
Yes
|
558
|
4.4
|
41.3
|
20.5
|
38.3
|
|
Preterm birth (GA < 37 weeks)
|
|
No
|
11176
|
88.1
|
39.2
|
22.4
|
38.4
|
|
Yes
|
1510
|
11.9
|
33.2
|
19.9
|
46.9
|
|
Low birth weight (BW < 2500 g)
|
|
No
|
11039
|
87.0
|
39.1
|
22.6
|
38.4
|
|
Yes
|
1648
|
13.0
|
34.5
|
19.0
|
46.5
|
|
Maternal complicationsb
|
|
No
|
10774
|
86.3
|
38.7
|
22.5
|
38.8
|
|
Yes
|
1717
|
13.7
|
36.2
|
19.8
|
44.0
|
