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Table 6 Association between maternal job strain during pregnancy and neurodevelopment delay in infants 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

   MDI b PDI b
Time Group N c (%) OR LCI d UCI d N c (%) OR LCI d UCI d
6 months of age High strain 7/77(9.1%) 1.288 0.403 4.115 8/77(10.4%) 1.049 0.362 3.037
Active jobs 11/90(12.2%) 1.506 0.521 4.352 20/90(22.2%) 2.383 0.968 5.867
Passive jobs 11/64(17.2%) 2.562 0.852 7.707 13/64(20.3%) 2.643 0.973 7.178
Low straine 6/75(8.0%) Ref. - - 8/75(10.7%) Ref. - -
12 months of age High strain 10/66(15.2%) 1.125 0.378 3.347 22/66(33.3%) 2.176 0.904 5.237
Active jobs 6/71(8.5%) 0.569 0.175 1.844 20/71(28.2%) 1.705 0.714 4.068
Passive jobs 8/60(13.3%) 1.077 0.345 3.365 20/60(33.3%) 2.406 0.980 5.908
Low straine 7/55(12.7%) Ref. - - 10/55(18.2%) Ref. - -
  1. aLogistic regression model was used to find the association adjusted for sex, birth weight, maternal age, gestational age, maternal education, and family income.
  2. bMDI and PDI were treated as dichotomous variables, classified as at-risk/delayed (<85) or normal/above normal (≥85).
  3. cThe number of children with MDI or PDI score under 85/total number in each group.
  4. d95% lower confidence interval (LCI) and upper confidence interval (UCI).
  5. eReference group (Ref.).
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