Table 1. 5-HTTLPR polymorphism in Colombian individuals.

Group	Genotype frequency				Allele frequency
	LL	SL	SS	Total	L	S
Father	19 [18%]	49 [47%]	37 [35%]	105	0.41	0.59
Mother	23 [22%]	42 [40%]	40 [38%]	105	0.42	0.58
Child with ASD	22 [21%]	42 [40%]	41 [39%]	105	0.41	0.59
Unrelated controls	38 [22%]	89 [52%]	44 [26%]	171	0.48	0.52

Genotypic and allelic frequencies in ASD trios and unaffected individuals