Table 2.

Cox Proportional Hazard Models Predicting Transition to Psychosis (CHR-T vs. CHR-NT)

Predictor Variable	B	SE	Wald	Hazard Ratio	Bootstrapped 95% CIa	P Value
Total SIPS Positive Symptoms	0.219	0.079	7.583	1.244	0.115–1.442	0.006
Age	−0.391	0.291	1.814	0.676	−2.123–0.197	0.178
Gender	0.030	0.816	0.001	1.030	−2.084–6.104	0.971
Education level	0.759	0.360	4.449	2.137	−0.002–3.853	0.035
Anti-psychotics at testing	−0.351	0.920	0.146	0.704	−2.292–4.477	0.703
Processing Speed	0.254	0.296	0.739	1.289	−0.592–2.451	0.390
Working Memory	0.117	0.217	0.291	1.125	−1.11–1.124	0.589
Attention/Vigilance	0.102	0.333	0.093	1.107	−0.95–2.157	0.760
Verbal Learning	−0.533	0.198	7.275	0.587	−3.098–(−0.033)	0.007
Visual Learning	−0.213	0.294	0.522	0.808	−2.542–0.442	0.470
Reasoning and Problem Solving	−0.122	0.200	0.375	0.885	−0.568–3.821	0.540

Note: Mean Total SIPS Positive Symptoms (SD) of CHR-T=15.17 (3.24) vs. CHR-NT=11.92 (4.06), p=.008; Mean Age (SD) of CHR-T=18.33 (3.09) vs. CHR-NT=16.43 (3.32), p=.056; Gender Ratio (% Male) of CHR-T=66.7% vs. CHR-NT=57.9%, p=.73; Mean Education level (SD) of CHR-T=11.5 (2.36) vs. CHR-NT=9.68 (2.61), p=.02; Anti-psychotics at testing (%) of CHR-T=33.3% vs. CHR-NT=27.4%, p=.74.

^aB=10,000 bootstrap samples