Table 2 Characteristics of biological mothers. Assis Brazil, Acre, 2003 and 2011

Religion

0023

 not adept

11

9.01

71

17.30

 adept

111

90.98

349

82.70

Ethnicity

<0.001

 indigenous

0

0.00

59

14.40

 Black

7

5.79

17

4.10

 “parda”

94

77.69

274

66.70

 White

20

16.52

61

14.80

Education

0.292

 0 to 4 years

28

26.93

105

28.60

 > 4 years

76

73.08

262

71.40

Maternal marital situation during pregnancy

-

 Lack of partner

-

-

82

20.00

 Presence of partner

-

-

327

80.00

Cigarette smoking during pregnancy

0.072

 yes

25

16.89

46

11.17

 no

123

83.11

366

88.83

Alcohol consumption during pregnancy

0.427

 yes

18

12.30

41

10.00

 no

128

87.70

370

90.00

Current gestational status

-

 multiparous

-

-

281

68.40

 primiparous

-

-

130

31.60

Previous abortions or stillbirths

-

 yes

-

-

73

18.90

 no

-

-

314

81,14

Number of previous pregnancies

-

-

412

1.96^a

-

Age at current pregnancy (in years)

-

22.18^a

411

23.45^a

0.853