Serotonergic gene polymorphisms (5-HTTLPR, 5HTR1A, 5HTR2A), and population differences in aggression: traditional (Hadza and Datoga) and industrial (Russians) populations compared

Table 8 The results of two-way ANOVA with ethnicities and the 5HTR2A polymorphism as main effects and their interactions

Source of variation	D.F	SS	MS	F	p
Ethnic	2	42,032.45	21,016.42	78.22	0.0001
5HTR2A	2	3627.26	1828.63	6.81	0.001
Ethnic × 5HTR2A	4	2795.36	698.84	2.60	0.035
Error	844	226,762.69	268.68

R² = 0.206
D.F degrees of freedom,k SS sum of squares, MS mean square, F Fisher criterion, p probability value

ISSN: 1880-6805