Table 1

			Diet established
Case	Congenital anomaly	IQ	Before conception	1st trimester	2nd trimester	3rd trimester	None
IUD, Intrauterine death; VSD, ventricular septal defect; PDA, patent ductus arteriosus; N, normal; N/A, not applicable; ?, IQ not known.
HPA
1	PKU	N	+
2	-	N	+
3	-	N	+
4	-	Below average, age 3, Stanford Binet	+
5		N	+
6	-	N	+
7	-	IQ 112, age 8 WISC		+
8	-	N		+
9	-	12–14m, age 11m, Griffith		+
10	-	N					+
11	-	N					+
PKU
12	IUD, stillborn, normal	N/A	+
13	VSD	N	+
14	-	?	+
15	-	?	+
16	-	Normal 18m, Sheridan	+
17	-	N	+
18	-	N/A	+
19	-	IQ 85, age 8 WISC	+
20	-	N	+
21	-	IQ 111, age 8 WISC	+
22	-	N	+
23	-	N		+
24	Anencephaly	N/A		+
25	-	IQ 127, age 8 WISC		+
26	-	N		+
27	Unilateral talipes with shortening	N		+
28	-	N		+
29	Pyloric stenosis	N		+
30	-	?			+
31	Deletion 4p multiple congenital anomalies	Developmental delay			+
32	-	?				+
33	Microcephaly	N				+
34	-	N					+
35	-	IQ 82 age 8 WISC					+
36	Microcephaly ptosis	Developmental delay					+
37	Microcephaly	Developmental delay					+
38	PDA, VSD, gastroschisis, subglottic stenosis	Developmental delay					+
39	1st trimester miscarriage	N/A	+