Maternal age, autistic-like traits and mentalizing as predictors of child autistic-like traits in a population-based cohort

Table 2 Association between maternal age, maternal mentalizing skills, maternal autistic-like traits and child autistic-like traits (N = 5,718)

	Model 1	R²(change)	Model 2	R²(change)	Model 3	R²(change)	Model 4^a	R²(change)	Model 4^b	R²(change)
	β (95% CI)	p	β (95% CI)	p	β (95% CI)	p	β (95% CI)	p	β (95% CI)	p
Step 1		(.011)
Maternal age	− .102 (− .130; − .073)	< .001	− .108 (− .136; − .079)	< .001	− .064 (− .094; − .034)	< .001	− .067 (− .097; − .037)	< .001	− .058 (− .088; − .028)	< .001
Step 2				(.007)
Maternal age squared			.077 (.049; .105)	< .001	.052 (.024; .080)	< .001	.050 (.022; .079)	.001	.047 (.019; .075)	.001
Step 3						(.032)
Child age					.035 (.007; .063)	.015	.034 (.006; .062)	.018	.039 (.010; .068)	.009
Child sex					− .209 (− .263; − .154)	< .001	− .209 (− .264; − .154)	< .001	− .211 (− .266; − .155)	< .001
Child national origin					.008 (.001; .015)	.034	.006 (− .001; .013)	.080	.003 (− .004; .010)	.452
Maternal education					− .126 (− .153; − .098)	< .001	− .110 (− .138; − .082)	< .001	− .092 (− .121; − .063)	< .001
Step 4^a								(.005)
Maternal mentalizing skills							− .073 (− .113; − .032)	.001	−	−
Step 4^b										(.024)
Maternal autistic − like traits							−	−	.165 (.127; .202)	< .001

R squared change is calculated by subtracting the changed explained variance in the model with the explained variance of the previous model. ^aModel adjusted with maternal mentalizing skills. ^bModel adjusted with maternal autistic-like traits
β = standardized beta, 95% CI = 95% confidence interval. Bold denotes significant, p < 0.05)

ISSN: 2040-2392