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. 2015 May 4;124(3):674–684. doi: 10.1037/abn0000057

Table 2. Phenotypic Correlations Between PLEs and Sleep Disturbances.

PSQI ISI
rph 95% CI rph 95% CI
Note. Italicized estimates are not significant, as indicated by confidence intervals overlapping with 0. The PSQI and ISI correlated .71 (.68/.73). PLEs = Psychotic-like experiences; PSQI = Pittsburgh Sleep Quality Index; ISI = Insomnia Severity Index. rph = phenotypic correlation; 95% CI = 95% confidence intervals.
Paranoia 0.36 [0.33, 0.38] 0.36 [0.33, 0.38]
Hallucinations 0.32 [0.30, 0.32] 0.37 [0.34, 0.39]
Cognitive Disorganization 0.40 [0.38, 0.43] 0.42 [0.39, 0.44]
Grandiosity −0.04 [−0.05, 0.01] −0.01 [−0.03, 0.04]
Anhedonia 0.09 [0.02, 0.12] 0.08 [−0.01, 0.11]
Negative symptoms 0.17 [0.11, 0.23] 0.17 [0.13, 0.21]