Table 4B. Multivariate analysis—Age controlled injury effects among genotype groups.

Variable	Caudate—9-carriers CFT: R2=0.857		Putamen—9-carriers CFT: R2=0.668		Striatum—9-carriers CFT: R2=0.379
	Estimate	P-value	Estimate	P-value	Estimate	P-value
Intercept	1.427	0.310	1.762	0.216	2.459	0.177
Age	0.038	0.294	0.026	0.461	0.011	0.801
Injury status	3.061	0.001	2.556	0.002	1.187	0.148

	Caudate—A2/A2 carriers CFT: R2=0.845		Putamen—A2/A2 carriers CFT: R2=0.826		Striatum—10/10 carriers RAC: R2=0.566
	Estimate	P-value	Estimate	P-value	Estimate	P-value
Intercept	2.571	0.027	3.918	0.003	3.593	<0.001
Age	0.008	0.766	−0.034	0.196	−0.026	0.059
Injury status	2.347	<0.001	1.820	0.001	−0.156	0.365

DAT, dopamine transporter.

Bold entries are made for P-values representing comparisons that are statistically significant.