Table 1. Maternal birthplace by diagnosis of Autism Spectrum Disorder (ASD) or/and Intellectual Disability (ID) of unknown cause.

Maternal Birth Place	Not ID	Mild-moderate ID	OR 95% CI	Severe ID	OR 95% CI	ASD + ID	OR 95% CI	ASD without ID	OR 95% CI
1 Oceania and Antarctica	278,569	3,498	1	177	1	508	1	327	1
	(73.98%)	(80.62%)		(74.63%)		(69.19%)		(72.35%)
2 North West Europe	54,522	500	0.73	28	0.81	104	1.06	78	1.22
	(14.48%)	(11.52%)	(0.66–0.80)	(11.81%)	(0.54–1.20)	(14.31%)	(0.86–1.30)	(17.26%)	(0.95–1.56)
3 Southern and Eastern Europe	8,187	77	0.75	8	1.54	23	1.56	5	0.52
	(2.17%)	(1.77%)	(0.60–0.94)	(3.38%)	(0.76–3.12)	(3.16%)	(1.02–2.36)	(1.11%)	(0.22–1.26)
4 North Africa and Middle East	1,832	16	0.70	3	2.58	7	2.12	0
	(0.49%)	(0.37%)	(0.42–1.14)	(1.27%)	(0.82–8.08)	(0.96%)	(1.00–4.47)	(0%)
5 South East Asia	15,629	100	0.51	10	1.01	46	1.63	18	0.98
	(4.15%)	(2.30%)	(0.42–0.62)	(4.22%)	(0.53–1.90)	(6.33%)	(1.20–2.20)	(3.98%)	(0.61–1.58)
6 North East Asia	2,615	12	0.37	2	1.20	13	2.75	5	1.63
	(0.69%)	(0.28%)	(0.21–0.64)	(0.84%)	(0.30–4.85)	(1.79%)	(1.59–4.78)	(1.11%)	(0.67–3.94)
7 South and Central Asia	4956	31	0.50	2	0.64	9	1.01	8	1.38
	(1.32%)	(0.71%)	(0.35–.71)	(0.84%)	(0.16–2.56)	(1.24%)	(0.52–1.94)	(1.77%)	(0.68–2.77)
8 Americas	2,237	11	0.39	1	0.70	4	1.24	4	1.52
	(0.59%)	(0.25%)	(0.22–0.71)	(0.42%)	(0.10–5.02)	(0.88%)	(0.51–3.00)	(0.46%)	(0.57–4.08)
9 Sub-Saharan Africa	5,028	35	0.55	3	0.94	15	1.65	6	1.02
	(1.34%)	(0.81%)	(0.40–0.77)	(1.27%)	(0.30–2.94)	(2.06%)	(0.99–2.76)	(1.33%)	(0.45–2.28)
missing	2,954	59		3		2		1