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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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