Annals of Occupational and Environmental Medicine

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 strain^e	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 strain^e	7/55(12.7%)	Ref.	-	-	10/55(18.2%)	Ref.	-	-

^aLogistic regression model was used to find the association adjusted for sex, birth weight, maternal age, gestational age, maternal education, and family income.
^bMDI and PDI were treated as dichotomous variables, classified as at-risk/delayed (<85) or normal/above normal (≥85).
^cThe number of children with MDI or PDI score under 85/total number in each group.
^d95% lower confidence interval (LCI) and upper confidence interval (UCI).
^eReference group (Ref.).

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ISSN: 2052-4374

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