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Table 1 Demographic characteristics, maternal health conditions and predictors of maternal depression at 12 months postpartum

From: Prenatal ambient air pollution and maternal depression at 12 months postpartum in the MADRES pregnancy cohort

Characteristic

N

Mean (SD), %

OR

95% CI

Age at Study Entry (Years)

180

29.8 (6.0)

1.00

0.94

1.07

Race and Ethnicity

 Hispanic

143

79.4%

-- REF --

 Black

8

4.4%

1.83

0.35

9.68

 Non-Hispanic White

21

11.7%

0.92

0.25

3.38

 Multiracial

2

1.1%

5.50

0.33

91.26

 Other

5

2.8%

1.38

0.15

12.89

 Missing

1

0.6%

   

Ethnicity and Nativity

 US-Born Hispanic

64

37.40%

-- REF --

 Foreign-Born Hispanic

71

41.50%

1.83

0.68

4.91

 Non-Hispanic

36

21.10%

1.97

0.63

6.14

 Missing

9

5.00%

   

Annual Household Income at Study Entry

 Less than $15,000

40

22.2%

-- REF --

 $15,000 to $29,999

51

28.3%

1.01

0.34

3.00

 $30,000 to $49,999

22

12.2%

0.74

0.17

3.22

 $50,000 to $99,999

12

6.7%

0.43

0.05

3.88

 $100,000 or more

16

8.9%

1.09

0.24

4.86

 Don’t Know

38

21.1%

0.88

0.27

2.92

 Missing

1

0.6%

   

Educational Attainment at Study Entry

 < 12th Grade

52

28.9%

-- REF --

 Completed 12th Grade

42

23.3%

1.53

0.47

4.97

 Some College or Technical School

43

23.9%

2.32

0.77

7.03

 Completed College

24

13.3%

0.33

0.04

2.94

 Some Graduate Training

18

10.0%

2.95

0.77

11.23

 Missing

1

0.6%

   

Marital Status

 Never married, single

31

17.2%

-- REF --

 Married

60

33.3%

1.19

0.34

4.23

 Living together

71

39.4%

1.51

0.45

5.07

 Divorced or separated

5

2.8%

1.69

0.15

19.16

 Missing

13

7.2%

   

Pre-Pregnancy BMI Category

 Normal

46

25.6%

-- REF --

 Underweight

2

1.1%

3.60

0.21

62.81

 Overweight

67

37.2%

0.42

0.15

1.20

 Obese

65

36.1%

0.73

0.28

1.91

Parity

 1st born

65

36.1%

-- REF --

 2nd born

48

26.7%

0.98

0.36

2.66

 3rd born or more

58

32.2%

0.79

0.29

2.11

 Missing

9

5.0%

   

Mode of Delivery

 Vaginal

132

73.3%

-- REF --

 Planned C-Section

22

12.2%

1.00

0.31

3.22

 Unplanned/Emergency C-Section

26

14.4%

0.18

0.02

1.39

Gestational Age at Delivery

 Preterm (< 37 weeks)

22

12.2%

0.43

0.09

2.02

 Early Term (37 weeks–38 weeks 6/7 days)

47

26.1%

0.63

0.23

1.72

 Full Term (39 weeks–40 weeks 6/7 days)

96

53.3%

-- REF --

 Late Term or Post Term (≥41 weeks

15

8.3%

1.08

0.28

4.24

IOM Weight Gain Recommendations

 Adequate

54

30.0%

-- REF --

 Excessive

74

41.1%

1.43

0.53

3.87

 Insufficient

34

18.9%

0.90

0.24

3.32

 Missing

18

10.0%

   

Hypertensive Disorders

 Normotensive

147

81.7%

-- REF --

 Hypertensive

32

17.8%

0.70

0.23

2.16

 Missing

1

0.6%

   

Diabetic Disorders

 Normal

118

65.6%

-- REF --

 Glucose Intolerant

35

19.4%

0.69

0.24

1.97

 Gestational Diabetes (GDM)a

18

10.0%

 Chronic Diabetes

8

4.4%

0.59

0.07

5.04

 Missing

1

0.6%

   

Depression Diagnosis or Antidepressant Medication

 No

159

88.3%

-- REF --

 Yes

21

11.7%

3.11

1.13

8.57

  1. aAll participants with GDM scored < 16 on CES-D