Table 2.

Multiple Regression Models with White Matter Tract FA

Outcome	PC 1 β	p	PC 2 β	p	R2
QLS Total excl. IF	−0.2539	0.2952	0.5366	0.0336b	0.144
SANS Total excl. Att.	1.775	0.6229	−8.3775	0.0278c	0.148
RBANS Totala	−2.3459	0.4832	−0.2046	0.9481	0.076
SANS Affective Flattening	−0.1798	0.9165	−2.613	0.1379	−0.013
SANS Alogia	0.7868	0.3456	−1.2752	0.1329	0.012
SANS Avolition/Apathy	0.1135	0.9092	−2.0455	0.0493c	0.148
SANS Anhedonia/Asociality	1.0317	0.3953	−2.6068	0.0393c	0.078

PC=principal component of 12 white matter tract mean FA values, QLS Total excl. IF=Quality of Life Scale total score excluding Intrapsychic Foundations subscale, SANS Total excl. Att.=Scale for the Assessment of Negative Symptoms total score excluding Attention subscale, RBANS Total=Repeatable Battery for the Assessment of Neuropsychological Status Covariates: Age, Parental Level of Education, Chlorpormazine Equivalent Dose, Duration of Illness

^aCovariates: Parental Level of Education, Chlorpormazine Equivalent Dose, Duration of Illness

^bp < 0.05

^cp < 0.05, uncorrected