Table 5.

Significant correlations (q < 0.05) between sleep variables and psychosis-risk symptoms measured on the PQ-B.

Sleep item	PQ-B item	Correlation coefficient	q-value+
Sleep disturbance	Surroundings	0.296	0.025
	Different	0.365	0.004
	Control	0.358	0.004
	Watching	0.341	0.008
	Skin	0.299	0.023
	Force	0.307	0.019
	Confused	0.303	0.021
	Beliefs	0.380	0.003
	Suspicious	0.372	0.003
Sleep duration	Feelings	−0.318	0.014
	Confused	−0.368	0.004
Daytime dysfunction	Difference	0.339	0.008
	Control	0.375	0.003
	Worry	0.274	0.042
	Body	0.290	0.030
Sleep quality	Control	0.376	0.003
	Confused	0.284	0.034
	Beliefs	0.266	0.049
Sleep satisfaction	Control	−0.339	0.008
Nap frequency	Experiences	0.387	0.002
	Force	0.349	0.006
	Beliefs	0.423	< 0.001
	Suspicious	0.279	0.038
Nap duration	Beliefs	0.270	0.046

PQ-B, prodromal questionnaire-brief version.

⁺FDR-corrected p-value.