Changes in neurotransmitter levels, brain structural characteristics, and their correlation with PANSS scores in patients with first-episode schizophrenia

Table 6 Correlation between each index and Positive and Negative Symptom Scale score

Index	Patient with positive symptoms		Patient with negative symptoms
	r	P	R	P
DA	0.628	0.000	0.533	0.000
Glu	-0.417	0.011	-0.631	0.000
GABA	-0.489	0.001	-0.567	0.000
The distance between the midline of the brain and the inferior fornix	0.182	0.284	0.154	0.354
The vertical distance between the corpus callosum and the inferior part of the fornix	0.577	0.000	0.475	0.003
The horizontal distance between the corpus callosum and the inferior part of the fornix	0.614	0.000	0.528	0.000
The distance between the middle fornix	0.208	0.256	0.117	0.461
The area of the ventricles	0.625	0.000	0.642	0.000

DA: Dopamine; Glu: Glutamic acid; GABA: Gamma-aminobutyric acid.