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Table 1 Comparison of maternal and child characteristics between those included and not included in the present study

From: Trajectories of maternal depressive symptoms from the antenatal period to 24-months postnatal follow-up: findings from the 2015 Pelotas birth cohort

Characteristics

Included (n = 3040)

Not included (n = 1235)

p-value

Maternal

 ABEP, mean (sd)a

25.7 (9.4)

23.6 (10.4)

< 0.001

 Schooling (years), mean (sd)a

10.4 (3.8)

9.1 (4.2)

< 0.001

 Maternal age (years), mean (sd)a

27.4 (6.5)

26.5 (6.8)

< 0.001

 Single mother, (%)

12.6

18.0

< 0.001

 Skin color, White (%)

73.2

66.6

< 0.001

 Parity ≥2 (%)

48.8

55.1

< 0.001

 Depression before pregnancy (%)

17.2

16.4

0.784

 Unplanned pregnancy (%)

42..8

53.4

< 0.001

 Prenatal consultations ≤6 (%)

10.5

24.4

<  0.001

 Worked during pregnancy (%)

41.7

50.7

< 0.001

 Smoking during pregnancy (%)

13.8

23..1

< 0.001

 Alcohol during pregnancy (%)

6.8

8.8

0.021

 Drugs during pregnancy (%)

1.2

0.0

0.290

 C-section (%)

67.0

60.7

< 0.001

 Self-rated health poor/very poor (%)

13.7

13.0

0.623

Child

 Sex, male (%)

50.7

50.4

0.831

 Low birthweight (%)

9.3

11.9

0.008

 APGAR 5′ ≤ 6 (%)

0.8

2.4

< 0.001

 Intermediate or intensive care hospitalization after birth (%)

7.7

10.4

0.005

  1. X2 Test for all except a
  2. a ANOVA test