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Table 5 Association between maternal job strain during pregnancy and infant PDI stratified by sex a

From: Effect of maternal job strain during pregnancy on infant neurodevelopment by gender at 6 and 12 months: Mothers and Children’s Environmental Health (MOCEH) study

Time

Group

PDI

Total

Boys

Girls

N

Mean b

β

SE

P value

N

Mean b

β

SE

P value

N

Mean b

β

SE

P value

6 months of age

High strain

77

99.9

−2.12

2.17

0.33

35

97.1

−4.94

3.40

0.15

42

102.3

0.20

2.79

0.94

Active jobs

90

95.3

−6.72

2.08

0.001

54

94.5

−7.53

2.98

0.01

36

96.1

−6.01

2.88

0.04

Passive jobs

64

94.2

−7.86

2.32

<0.001

30

92.5

−9.48

3.53

0.008

34

95. 9

−6.23

3.02

0.04

Low strainc

75

102.0

Ref.

-

-

38

102.0

Ref.

-

-

37

102.1

Ref.

-

-

12 months of age

High strain

66

93.6

−4.16

3.00

0.17

35

91.4

−9.18

4.49

0.04

31

94.3

−0.45

4.24

0.92

Active jobs

71

96.9

−0.80

2.93

0.79

41

96.2

−4.37

4.13

0.29

30

97.8

3.04

4.30

0.48

Passive jobs

60

93.2

−4.51

3.09

0.15

27

91.5

−9.11

4.68

0.05

33

94.7

−0.02

4.22

1.00

Low strainc

55

97.7

Ref.

-

-

28

100.6

Ref.

-

-

27

94.7

Ref.

-

-

  1. aThe general linear model was used to find the association adjusted for sex, birth weight, maternal age, gestational age, maternal education, and family income.
  2. bAdjusted means for sex, birth weight, maternal age, gestational age, maternal education, and family income.
  3. cReference group (Ref.).
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Annals of Occupational and Environmental Medicine

ISSN: 2052-4374

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