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Table 4 Multiple linear regression analyzing the impact of demographics, childhood trauma on PSS PPI (ISI = 120 ms)

From: Impact of childhood trauma on sensory gating in patients with first-episode schizophrenia

PPI subscale

Odds ratio

95% CI

p

PSS PPI

 Constant

71.108

3.660~ 70.814

0.011

  Childhood trauma

−1.542

−2.775~ − 0.309

0.018

  DUP

0.431

0.021~ 0.840

0.041

  1. R2 = 0.531, Adjusted R2 = 0.452, F = 6.784, P = 0.011
  2. DUP the duration of untreatment psychosis, Dependent variables: continuous and normally distributed: Independent variables: Categorical variable: sex: 1. male 2. female; Smoke history: 1.No 2.Yes; the rest of variable are continuous: age, dup, education years; PSS PPI perceived spatial separation prepulse inhibition;