Table 1. Genotype Frequencies and Percentages of the 5-HTTLPR (including A/G SNP (dbSNP: rs25531) Genotype Groups S (S/S, S/L_G, L_G/L_G, S/L_A, L_G/L_A) vs L (L_A/L_A).

	N	%
5-HTTLPR groups in children
S group (S/S, S/LG, LG/LG, S/LA, LG/LA)	87	75.7
L group (LA/LA)	28	24.3
5-HTTLPR classification in younger adults
S group (S/S, S/LG, LG/LG, S/LA, LG/LA)	78	73.6
L group (LA/LA)	28	26.4
5-HTTLPR classification in older adults
S group (S/S, S/LG, LG/LG, S/LA, LG/LA)	72	72.7
L group (LA/LA)	27	27.3