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Table 4 Risk factors for severe maternal morbidity in the multivariable analysis

From: Severe maternal morbidity: a case-control study in Maranhao, Brazil

Multivariate analysis according to the hierarchical model

OR

Adjusted OR

95% CI

p - value

Age

 

20-34

1.00

1.00

  

< 20

0.73

0.73

0.39-1.37

 

≥ 35

3.26

3.11

1.53-6.31

< 0.01

Previous hypertension

 

No

1.00

1.00

  

Yes

2.91

2.52

1.09-5.80

0.03

History of abortion

    

No

1.00

1.00

  

Yes

1.72

1.61

0.97-2.68

0.07

Number of consultations

 

≥ 6

1.00

1.00

  

4-5

1.65

1.78

1.05-3.01

0.03

1-3

1.86

1.89

1.03-3.49

0.04

  1. Sao Luis, 2009.