Table IV.

Linear regression analysis with severity index as dependent and 5-HTTLPR (A/G) genotype as independent variable

Genetic model	Beta	Std error	t	P value
Dominant	0.23	1.85	2.14	0.036*
Co-dominant	0.17	0.84	1.53	0.13
Recessive	0.09	1.14	0.78	0.44

^*Significant