Skip to main content

Table 2 Correlations between the four PDI-4 scales and corresponding diagnosis scales (PHQ-9, HADS-A, CAARS-S, and MDQ)

From: A cross-validation of the provisional diagnostic instrument (PDI-4)

 

PDI-4 GAD

PDI-4 MDE

PDI-4 ADHD

PDI-4 Mania

HADS-A

0.76

0.72

0.66

0.52

PHQ-9

0.75

0.87

0.68

0.46

CAARS-S

0.57

0.54

0.75

0.59

MDQ

0.33

0.33

0.46

0.63

  1. Abbreviations: ADHD = attention deficit hyperactivity disorder; CAARS-S = Conners’ Adult ADHD Rating Scale Self Report; HADS-A = Hospital Anxiety and Depression Scale-Anxiety subscale; MDE = major depressive episode; MDQ = Mood Disorder Questionnaire; PDI-4 = Provisional Diagnostic Instrument; PHQ-9 = Patient Health Questionnaire for depression.
  2. Note: Pearson correlation coefficients are reported. All correlations are significant, p<0.001.