A genetic study of autism in Costa Rica: multiple variables affecting IQ scores observed in a preliminary sample of autistic cases

Table 1 is an abbreviated version of descriptive data obtained for each proband, including their sex and age at interview. Scores for each domain of the ADI-R are provided, as well as the full-scale IQ score and the Vineland Adaptive Behavior composite score. The superscript numerals next to the IQ score indicate the specific IQ test that was used.

Case	Social total	Communi-cation nonverbal total	Communi-cation verbal total	Behavior total	Age at first single words	Age at first phrases	Gender	Age at interview (ADI-R)	Full-scale IQ	Vineland Adaptive Behavior composite score
001	29		18	10	1	1	M	7.83	49⁶	37
002	29		20	5	0	0	M	5.67	<50⁸	53
003	28		25	6	0	1	M	6.75	87⁶	60
004	27	14		8	1	1	M	7.50	<50⁵	30
005	26		22	10	1	1	F	5.42	57⁶	51
006	9		20	5	1	1	M	6.25	67⁷	54
007	21		20	10	0	1	M	10.00	37⁷	20
008¹	29	12		8	0	0	M	5.08	NA	45
009	27		19	9	0	1	M	8.08	34⁷	46
010	27		21	5	0	1	M	9.25	43⁶	35
011	27		16	6	0	1	M	10.50	NA	50
012	20	8	14	8	1	1	M	5.25	72⁷	70
013	29	14	16	6	0	0	M	4.33	<50⁵	44
014	29	13	19	6	1	1	M	6.50	<50⁵	51
015	30		14	9	0	1	F	5.03	<50⁵	46
016	28	12	20	12	1	1	M	13.00	60⁶	39
018	27	11		7	1	0	M	3.67	<50⁵	67
019	29		17	7	0	0	M	7.25	66⁶	63
025	28	12		8	0	0	M	7.83	<50⁵	24
027	24		18	6	1	1	M	4.25	<50⁵	55
028	29	14		3	0	1	M	5.42	<50⁵	47
029²	16		9	2	1	1	M	6.83	113⁶	127
030	27	13		5	1	0	M	5.66	<50⁵	43
031	29		15	4	1	1	M	7.08	70⁶	52
032	16	11		4	1	0	M	5.42	<50⁵	42
033	18	8		6	0	0	F	4.83	<50⁵	46
035	18		15	5	1	1	M	7.08	<50⁵	45
036	29	14		3	0	0	M	6.33	<50⁵	32
039	30	14		5	0	0	M	9.82	<50⁵	21
040	15		15	5	1	1	M	3.08	75⁵	80
049	29	14		9	1	1	M	13.25	<50⁵	20
050	21	13		6	1	1	M	2.92	pending	60
051	30	14		8	0	1	F	5.50	<50⁵	39
053	29		18	8	0	0	M	5.83	105⁶	55
056	28		21	7	?	1	M	6.00	56⁶	49
043³	22	12		5	0	0	F	4.83	NA	41
044⁴	27	11		2	1	1	F	5.75	NA	50

¹Angelman's syndrome
²Asperger's syndrome
³Rett syndrome
⁴Moebius syndrome
⁵Bayley
⁶WPPSI
⁷Leiter
⁸McCarthy
NA indicates that the IQ test could not be completed because the child is too mentally retarded or was too distracted.

ISSN: 1471-244X