Table 1.
Characteristics for prodromal individuals and healthy controls
| Prodromal individuals (n = 74) | Controls (n = 76) | P value | |
|---|---|---|---|
| Sex (male/female) | 43/31 | 39/37 | 0.403a |
| Age (y) | 22.0 ± 5.25 | 21.6 ± 2.97 | 0.523b |
| Years of education (y) | 11.8 ± 2.94 | 15.1 ± 1.88 | <0.001b |
| SIPS | |||
| Positive symptoms | 9.51 ± 4.53 | ||
| Negative symptoms | 11.4 ± 6.03 | ||
| Disorganized symptoms | 5.05 ± 2.93 | ||
| General symptoms | 5.72 ± 3.17 | ||
| Total scores | 32.0 ± 11.1 | ||
| TMT‐A | 39.5 ± 17.1 | 34.0 ± 10.3 | 0.022b |
| BACS: symbol coding | 54.4 ± 10.2 | 61.8 ± 9.34 | <0.001b |
| HVLT‐R | 24.2 ± 5.84 | 26.9 ± 3.96 | 0.002b |
| BVMT‐R | 23.0 ± 10.0 | 27.6 ± 6.95 | 0.002b |
| Stroop Word | 86.6 ± 27.2 | 98.1 ± 17.3 | 0.014b |
| Stroop Color | 56.5 ± 19.2 | 72.7 ± 13.6 | <0.001b |
| Stroop Color and Word | 33.2 ± 13.4 | 43.5 ± 8.38 | <0.001b |
| CPT | 2.40 ± 0.79 | 2.85 ± 0.56 | <0.001b |
Abbreviations: BACS, Brief Assessment of Cognition in Schizophrenia; BVMT‐R, Brief Visuospatial Memory Test‐Revised; CPT, Continuous Performance Test; HVLT‐R, Hopkins Verbal Learning Test‐Revised; SIPS, structured interview for prodromal syndromes; TMT‐A, Trail Making Test, part A.
a
The P values for sex distribution were obtained by a chi‐square test.
b
The P values were obtained by two‐sample t tests.