Table 1.

Pre-Pubertal Whole Blood Serotonin Levels in Males and Females

	Male (N=159)	Female (N=23)	Total (N=182)
Hyperserotonemia	71	5	76
Hyperserotonemia (%)	44%	21%	42%
Normoserotonemia	88	18	106
WB5-HT Mean (ng/mL)	269	237	264
Standard Deviation	112	96	110
Std. Error of Mean	9	20	8
Skewness	1.47	1.40	1.47
Age: Mean (SD)	7.60 (2.38)	7.34 (2.64)	7.56 (2.41)
Race: (WB5-HT Mean)
African-American	20 (310)	2 (348)	22 (313)
Asian-American	6 (264)	1 (257)	7 (263)
Caucasian	106 (263)	16 (226)	122 (258)
Caucasian/Hispanic	24 (261)	3 (243)	27 (260)
Mixed Race	2 (211)	1 (154)	3 (192)
Native American/Alaskan	1 (341)	0	1 (341)
Ethnicity: (WB5-HT Mean)
Hispanic/Latino	26 (266)	4 (221)	30 (260)
Non Hispanic Latino	133 (269)	19 (240)	152 (265)