Skip to main content

Table 1 Associations between socio-demographic characteristics of women and their postpartum EPDS

From: Prenatal micronutrient supplementation and postpartum depressive symptoms in a pregnancy cohort

Characteristic

EPDS<10*

EPDS≥10*

p-value**

Odds ratio***

(95% CI)

Demographics

    

Age (mean (95% CI))

31.2 (30.8 - 31.6)

31.6 (30.3 - 32.8)

0.51

1.0 (0.9 - 1.1)

BMI (mean (95% CI))

24.1 (23.6 - 24.5)

24.2 (22.9 - 25.4)

0.90

1.0 (0.9 - 1.0)

Marital status (n (%))

    

Married/common-law

406 (88.0)

55 (11.9)

0.17

1.0

Single/divorced

9 (75.0)

3 (25.0)

 

2.4 (0.6 - 9.3)

Education (n (%))

    

High school

36 (87.8)

5 (12.2)

0.96

1.0

Trade/undergrad

286 (87.7)

40 (12.2)

 

0.6 (0.1 - 7.0)

Graduate

93 (87.7)

13 (12.2)

 

0.6 (0.1 - 5.9)

Household Income (n (%))

    

< $20K

5 (83.3)

1 (16.7)

0.13

1.0

$20-$39K

12 (80.0)

3 (20.0)

 

1.2 (0.1 - 15.1)

$40-$69K

47 (78.3)

13 (21.7)

 

1.4 (0.1 - 12.9)

$70-$99K

107 (87.7)

15 (12.3)

 

0.7 (0.1 - 6.4)

≥$100K

236 (90.1)

26 (9.9)

 

0.5 (0.1 - 4.9)

Born in Canada (n (%))

    

Yes

349 (89.9)

39 (10.0)

0.01

1.0

No

63 (79.7)

16 (20.2)

 

2.3 (1.2 - 4.3)

Ethnicity (n (%))

    

Caucasian

363 (88.3)

48 (11.6)

0.30

1.0

Non-causasian

51 (83.6)

10 (16.4)

 

1.5 (0.7 - 3.1)

# of children (n (%))

    

0

57 (87.7)

8 (13.3)

0.28

1.0

1-2

172 (88.2)

23 (11.8)

 

1.0 (0.5 - 1.9)

3-4

4 (66.7)

2 (34.3)

 

7.3 (1.0 - 53.7)

Social/lifestyle

    

# of chronic conditions (n (%))

    

0

206 (85.1)

36 (14.9)

0.05

1.0

1

91 (91.9)

8 (8.1)

 

0.5 (0.2 - 1.1)

2

15 (78.9)

4 (21.0)

 

1.5 (0.5 - 4.8)

3

5 (62.5)

3 (37.5)

 

3.4 (0.8 – 15.0)

# of life event stresses (n (%))

    

During this pregnancy

    

0

207 (89.6)

24 (10.4)

0.02

1.0

1-2

184 (88.0)

25 (11.9)

 

1.2 (0.6 - 2.1)

>3

24 (72.7)

9 (27.2)

 

3.2 (1.3 - 7.7)

12 mos before pregnancy

    

0

196 (89.9)

22 (10.1)

0.08

1.0

1-2

149 (88.2)

20 (11.8)

 

1.2 (0.6 - 2.3)

>3

13 (72.2)

5 (27.8)

 

3.4 (1.1 - 10.5)

Before age 17

    

0

126 (89.3)

15 (10.6)

0.06

1.0

1-2

224 (89.2)

27 (10.7)

 

1.2 (0.6 - 2.6)

>3

11 (68.7)

5 (31.2)

 

3.8 (1.1 - 12.5)

Social support (mean (95% CI))

    

Prenatal

14.8 (14.7 - 15.0)

13.8 (13.1 - 14.5)

0.0043

0.8 (0.7 - 0.9)

Postpartum

14.7 (14.5 - 14.9)

13.0 (12.2 - 13.8)

0.0001

0.8 (0.7 - 0.9)

EPDS score by time points

    

(mean (95% CI)

    

Time A (1st trimester)

4.8 (4.1 - 5.6)

8.0 (6.5 - 9.5)

0.0006

1.31 (1.11-1.55)

Time B (2nd trimester)

5.0 (4.7 - 5.4)

8.4 (7.2 - 9.5)

<0.0001

1.21 (1.13-1.30)

Time C (3rd trimester)

4.5 (4.2 - 4.8)

9.0 (7.9 - 10.1)

<0.0001

1.33 (1.23-1.44)

Time E (12 weeks postpartum)

3.6 (3.4 - 3.8)

12.1 (11.4 - 12.9)

<0.0001

n/a

  1. * EPDS≥10 = “at least probable minor depression”. The frequency calculations differed by variable because of missing values in some cases (e.g. participant did not answer a question).
  2. **Assessment of associations with Chi-square test for categorical variables or t-test for continuous variable.
  3. ***OR from univariate logistic regression.