Table 1.

Participant Demographic Information, Symptom, and Cognitive Scores

	SCH (mean ± SD)	HCs (mean ± SD)	P value (uncorrected)
N	179	77
Age [range]	23.63 ± 5.77 [13–44]	24.52 ± 5.63 [18–42]	.288
Gender (female/ male)	61/117	39/38	.014*
Education	11.58 ± 2.42	14.05 ± 2.25	<.00001**
Information-WAIS	15.81 ± 5.30	21.16 ± 4.53	<.00001**
Digit symbol-WAIS	62.30 ± 15.45	89.46 ± 14.53	<.00001**
Duration_of_ Medicine (Days)	198 ± 445	—	—
Dosage_of_Medicine (CPZ equivalent)	134 ± 117	—	—
Duration_ of_illness (months)	25.42 ± 32.66	—	—
Onset_age	21.59 ± 5.48	—	—
SAPS scores	20.60 ± 15.63	—	—
SANS scores	33.54 ± 26.52	—	—
Cognitive task
N-back Textdisplay2_ACC	0.78 ± 0.25	0.92 ± 0.15	.000007**
N-back Textdisplay1_ACC	0.83 ± 0.27	0.94 ± 0.16	.000296**
N-back Target_ ACC	0.52 ± 0.25	0.76 ± 0.19	<.00001**
N-back Nontarget_ACC	0.86 ± 0.19	0.78 ± 0.22	.001*
Contour Random total correct	43.75 ± 4.16	46.07 ± 3.69	.001655*
Contour Random total wrong	3.32 ± 6.31	2.38 ± 3.90	.2486
Contour Standard total correct	70.77 ± 8.81	77.54 ± 7.74	.00002**
Contour Standard total wrong	7.15 ± 10.84	6.49 ± 6.52	.62772
Verbal fluency correct	13.98 ± 5.06	20.37 ± 5.46	<.00001**
Verbal fluency wrong	0.17 ± 0.40	0.10 ± 0.31	.373
Verbal fluency repeat	0.68 ± 0.94	0.81 ± 0.98	.397

Note: After Bonferroni correction, the significant difference level was 4.16e-4.

*P < .05; **P < 4.16e-4.