Brain-derived neurotrophic factor, sex hormones and cognitive decline in male patients with schizophrenia receiving continuous antipsychotic therapy

Table 5 Relationships between prolactin levels and psychotic symptoms in patients¹

	Positive symptoms score				Negative symptoms score				General psychopathology score
	r	P value2	P value3	P value4	r	P value2	P value3	P value4	r	P value2	P value3	P value4
PRL	0.152	0.098	0.254	NS	0.196	0.032	0.011	S.	0.181	0.048	0.030	NS

¹Pearson product moment.

²Before adjusting for confounding factors.

³After adjusting for confounding factors (body mass index).

⁴Bonferroni correction was applied (a new = 0.05/3 = 0.017).

NS: Not significant; S.: Significant; DCT: Digit Cancellation Test; SS: Spatial Span Test; PASAT: Paced Auditory Serial Addition Test; TMT-A: Trail Making Task.