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. Author manuscript; available in PMC: 2021 Sep 24.
Published in final edited form as: Schizophr Res. 2020 Sep 24;223:327–336. doi: 10.1016/j.schres.2020.08.022

Table 3:

Significant correlations between spindle features and clinical measures including all patients. For every correlation, the range of r- and p-values with the number of significant electrodes in brackets are reported. NREM: non-rapid eye movement sleep; CGAS: Children’s Global Assessment Scale (higher score means better overall functioning, i.e. 100 = Superior functioning, 50 = Moderate degree of interference in functioning, 10 = Needs constant supervision); SAPS: Scale for the Assessment of Positive Symptoms (0 = None/Not at all, 1 = Questionable, 2 = Mild, 3 = Moderate, 4 = Marked, 5 = Severe; 34 items).

Spindle Amplitude Spindle Duration Spindle Frequency Spindle Density
r-value p-value r-value p-value r-value p-value r-value p-value
Age of Onset / / / / / / / /
Duration of Illness −0.65 ≤ r ≤ −0.59 0.006 ≤ p ≤ 0.01 (2) / / / / / /
Medication Dosage / / / / −0.49 0.04 (1) / /
CGAS 0.74 0.02 (1) 0.678 ≤ r ≤ 0.683 0.038 ≤ p ≤ 0.041 (2) / / / /
SAPS Sum −0.68 0.04 (1) −0.67 0.04 (1) −0.83 ≤ r ≤ −0.76 0.002 ≤ p ≤ 0.02 (2) −0.67 0.047 (1)
SAPS Global Rating of Hallucinations / / −0.76 ≤ r ≤ −0.68 0.02 ≤ p ≤ 0.03 (4) −0.71 ≤ r ≤ −0.66 0.041 ≤ p ≤ 0.047 (2) −0.73 0.02 (1)