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. Author manuscript; available in PMC: 2023 Mar 1.
Published in final edited form as: Psychiatry Res. 2022 Jan 17;309:114404. doi: 10.1016/j.psychres.2022.114404

Table 1.

Sample characteristics

Variable Healthy controls Early-stage psychosis t or χ2
n 20 20 --
Age (years) 23.65 (5.58) 24.85 (4.53) −0.747
Sex (F/M) 3/17 4/16 0.173
Race (AA/C/M) 12/7/1 13/6/1 0.117
Hispanic or Latino (yes/no) 1/19 2/18 0.36
Education level (HS/SC/BD) 3/13/4 12/6/2 8.65*
PANSS positive total score 8.2 (1.28) 11.55 (4.77) −3.03**
PANSS negative total score 8.45 (2.14) 14.5 (6.03) −4.23***
GF: Social score 7.85 (1.35) 4.85 (1.9) 5.76***
CDI score 0.57 (0.33) 1.48 (1.23)+ −3.13**

Sex, race, ethnicity, and education level are frequency values. Remaining values are presented as mean (standard deviation). Sex: F = female; M = male; Race: AA = African American or Black; C = Caucasian; M = Multiracial; Education level: HS = high school diploma or lower; SC = some college or associate degree; BD = bachelor’s degree or higher; PANSS = Positive and Negative Syndrome Scale; GF-Social = Global Functioning: Social scale; CDI = Communication Disturbances Index.

+

Missing value for one participant.

*

p < .05

**

p < .01

***

p < .001