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Table 3 Reproductive characteristicsof mothers of low and normal birthweight infants

From: Socioeconomic factors and low birth weight in Mexico

Variable

Birthweight

OR

95% CI

 

<2500 grs (n = 158)

≥ 2500 grs (n = 474)

  

Parity

    

   Multiparous

92

284

1.0

 

   Primiparous

66

190

1.04

[0.73,1.51]

Maternal weight (kgs)

    

<48

54

107

1.61*

[1.09,3.84]

49–54

37

120

0.99

[0.58,1.67]

55–60

37

119

1.0

 

>60

30

128

0.75

[0.43,1.29]

Previousa preterm birth

    

No

58

213

1.0

 

Yes

34

71

1.75*

[1.06,2.90]

Previous low birth weighta

    

No

66

246

1.0

 

Yes

26

38

2.55*

[1.44,4.50]

Previous abortiona

    

No

67

222

1.0

 

Yes

25

62

1.33

[0.77,2.28]

  1. *p <0.05
  2. aOnly applicable for women with more than one pregnancy