Table 2. Severity of positive and negative prodromal symptoms at baseline in the full, conversion, and nonconversion groups.

Conversion Status (n)	Positive Prodromal Symptom SIPS Score					Negative Prodromal Symptom SIPS Score
	Unusual Thought Content	Suspic.	Grandi. Ideas	Percept. Abnorm.	Disorg. Comm.	Social Anhed.	Avolit.	Express. Emot.	Exper. Emot/Self	Ideation. Rich.	Occup. Funct.
Full CHR sample (270)	3.10 (1.5)	2.83 (1.5)	1.14 (1.3)	3.02 (1.7)	2.51 (1.9)	2.51 (1.9)	2.44 (1.7)	1.48 (1.6)	1.44 (1.7)	1.28 (1.5)	3.17 (1.8)
Psychosis conversion (78)	3.38 (1.6)*	3.46 (1.4)***	1.14 (1.5)	3.15 (1.7)	2.42 (1.6)***	3.27 (1.8)***	2.70 (1.7)	1.84 (1.6)*	1.62 (1.7)	1.86 (1.6)***	3.53 (1.7)*
Nonconversion (192)	2.98 (1.4)	2.57 (1.4)	1.14 (1.3)	2.96 (1.7)	1.63 (1.4)	2.20 (1.9)	2.33 (1.7)	1.33 (1.5)	1.37 (1.6)	1.05 (1.4)	3.02 (1.9)

Note: All values are means (standard deviations). SIPS, Structured Interview for Psychosis-Risk Syndromes; CHR, clinical high risk.

^*p ≤ .05.

^***p ≤ .001.

Psychosis conversion > nonconversion.