Table 3. Interaction between maternal ethnic background and neighborhood ethnic diversity on maternal-reported CBCL Total Problems (N = 3076).

		Neighborhood ethnic diversity
		Low		Medium		High
		N cases/controls	OR (95%CI)	N cases/controls	OR (95%CI)	N cases/controls	OR (95%CI)
Maternal ethnic background	Dutch	17/852	1.0	36/805	1.71 (0.93; 3.15)	14/425	0.96 (0.43; 2.13)
	Non-Dutch	14/105	5.24 (2.47; 11.14)***	25/227	2.72 (1.35; 5.50)**	90/466	3.03 (1.53; 6.02)**
OR (95% CI) for non-Dutch vs. Dutch within strata of neighborhood ethnic diversity			5.24 (2.47; 11.14)***		1.59 (0.90; 2.80)		3.15 (1.66; 5.99)***
Measure of interaction on additive scale: RERI (95% CI)				−3.22 (−0.70; 0.59) P = 0.097		−1.53 (−5.52; 2.45) P = 0.449
Measure of interaction on multiplicative scale: Ratio of ORs (95% CI)				0.30 (0.12; 0.76) P = 0.012		0.60 (0.23; 1.58) P = 0.304

Models include 60 levels (neighborhoods). Variance (SE) null model 0.39 (0.14); p-value<0.001.

OR's are adjusted for child gender, age, maternal age, marital status, parity, maternal educational level, family income, neighborhood wealth and urbanity level.

* p<0.05.

^**p<0.01.

^***p<0.001.