Table 4.

Hierarchical multiple regression: The prediction of the presence and severity of delusions

Step	Variable	B	SE	β	t	p	Zero-order	Semi-partial	Tolerance	VIF
1.	Age of onset of psychosis	−.010	.019	−.051	−.502	.618	−.080	−.046	.791	1.264
	Duration of untreated psychosis	.000	.002	−.022	−.225	.823	.044	−.020	.893	1.119
	Total CPZE	.000	.001	.079	.783	.437	.092	.071	.806	1.240
	Diagnosis	−.321	.401	−.087	−.801	.427	−.434	−.073	.698	1.433
2.	PANSS 3_Hallucinations	.287	.143	.314	2.004	.050	.677	.182	.336	2.973
	PANSS Cognitive_5 factor	.080	.050	.260	1.609	.114	.639	.146	.317	3.156
	PANSS Negative_5 factor	.032	.026	.151	1.237	.221	.541	.113	.552	1.810
3.	C4A mRNA expression	.214	.094	.217	2.282	.027	.280	.208	.915	1.093

Note. Step 1 R²= .211, p= .009; Step 2R²= .527, p≤ .001; Step 3R²= .570, p≤ .001.