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Table 3 Influence of ethnicity, altitude and maternal age in preeclampsia incidence and also excluding all gestational hypertension cases without proteinuria

From: A population-based study of preeclampsia and eclampsia in Ecuador: ethnic, geographical and altitudes differences

Variables

p-value

OR

95% CI OR

p-value1

OR11

95% CI OR1

Ethnicitya

Afro Ecuadorian

 

< 0.001

2.34

1.95

2.81

< 0.001

2.18

1.79

2.66

Montubio

 

0.001

0.46

0.29

0.73

0.001

0.42

0.25

0.70

Mestizo

 

< 0.001

1.80

1.54

2.10

< 0.001

1.75

1.49

2.07

Caucasians

 

0.311

1.17

0.87

1.58

0.276

1.20

0.87

1.66

Altitudeb

1500–3500

 

0.004

0.76

0.63

0.92

0.003

0.73

0.60

0.90

> 3500

 

< 0.001

2.31

1.93

2.78

< 0.001

2.40

1.97

2.93

Altitude

x

Ethnicityc

1500–3500

Afro Ecuadorian

< 0.001

2.36

1.78

3.14

< 0.001

2.86

2.11

3.89

1500–3500

Montubio

< 0.001

18.13

9.53

34.50

< 0.001

22.32

11.02

45.22

1500–3500

Mestizo

0.211

1.13

0.93

1.36

0.052

1.23

1.00

1.505

1500–3500

Caucasians

< 0.001

2.95

1.81

4.80

< 0.001

3.06

1.81

5.20

> 3500

Afro Ecuadorian

0.170

0.59

0.28

1.25

0.035

0.32

0.11

0.92

> 3500

Montubio

0.093

4.06

0.79

20.8

0.052

5.17

0.99

27.00

> 3500

Mestizo

< 0.001

0.54

0.45

0.65

< 0.001

0.56

0.46

0.69

> 3500

Caucasians

0.285

1.66

0.65

4.23

0.700

1.24

0.43

3.73

Maternal Age

MA

 

< 0.001

0.92

0.91

0.93

< 0.001

0.91

0.90

0.92

MA2

 

< 0.001

1.00

1.00

1.00

< 0.001

1.00

1.00

1.00

Geographical Distance

  

< 0.001

1.18

1.17

1.18

< 0.001

1.20

1.19

1.21

  1. Notes: 1) The “1” super index for OR, confidence interval and p-values were computed excluding all gestational hypertension cases without proteinuria. (a) In these variables the Native American were considered as reference. (b) In altitude the group of women living < 1500 mts over the sea level were considered as reference. (c). In this interaction the Native American leaving at < 1500 mts over sea level was considered as the reference group. The maternal age (MA) was included also in the quadratic form (MA2). All computation was performed including all variables in the model: ethnicity, altitude and maternal age