Relationship between negative symptoms and neurocognitive functions in adolescent and adult patients with first-episode schizophrenia

Table 3 The correlation and partial correlation (negative factor) matrix of general conditions, negative symptoms and neuropsychological assessments outcomes on first-episode schizophrenics

		Age	Age of onset	Education level	Duration of illness	Negative factor
WCST	TT	-.032	-.030	.004	-.011	-.010
	CT	.044	-.028	.276**	-.075	-.381**
	TE	-.045	.028	-.271**	.078	.381**
	PE	-.034	.043	-.257*	.086	.272**
	RE	-.033	-.001	-.159	.002	.397**
	CC	-.028	-.084	.283**	-.044	-.290**
CPT	CPT 1	.242*	.179	.141	.251*	-.230*
	CPT 2	.187	.192	-.044	.148	-.178
	CPT 3	.040	.002	.056	-.090	-.080
	PE of CPT 3	.051	.099	-.007	.024	-.045
TMT	TMT 1	-.009	.175	-.462**	.016	.306**
TMT	TMT 2	.043	.222*	-.473**	.014	.293**
SCWT	SCWT 1	.087	.156	-.406**	.055	.410**
	SCWT 2	-.067	.087	-.432**	.072	.331**
	SCWT 3	-.063	-.013	-.206*	-.104	.409**
	RT of SCWT	-.029	-.120	.145	-.256*	.335**

False Discovery Rate: p (CT) < p (TE) < p (RE) < p (SCWT 1) < p (SCWT 3) < p (SCWT 2) < p (RT of SCWT) < p (TMT 1) < p (CC) < p (TMT 2) < p (PE) < p (CPT 1) < .05 < p (CPT 2) < p (CPT 3) < p (PE of CPT 3) < p (TT), while p (CPT 1) = .028 < .05*12/16 = .0375
|r|∈[.8,1] means highly strong correlation, |r|∈[.6,.8) means strong correlation, |r|∈[.4,.6) means moderate correlation, |r|∈[.2,.4) means weak correlation, |r|∈[0,.2) means very weak correlation or no correlation
TT total trials, CT correct trials, TE total number of errors, PE perseverative errors, RE random errors, CC the number of completed categories; PE of CPT 3 perseverative errors of CPT 3, RT of SCWT reaction time of SCWT
*P < .05, **P < .01, the significance of the correlation coefficient

ISSN: 1471-244X