Resolution:
## Figure 2.
Known groups validity: summary of mean PDI-4 subscale scores in cohorts diagnosed
with other rating scales. Abbreviations: ADHD = attention deficit hyperactivity disorder; CAARS-S = Conners’
Adult ADHD Rating Scale Self Report; Depress = depression; GAD = generalized anxiety
disorder; 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. P-values are from contrasts among
the cohorts (comparing to the left most histogram bar) from the ANOVA model with the
corresponding PDI-4 scale as the dependent variable and the following independent
variables in the model: diagnostic cohorts, age, gender, and race. The Diagnostic
Cohorts variable was a categorical grouping of patients into 3 categories: 1) patients
meeting the corresponding cutoff score (PHQ-9 score ≥ 12 if PDI-4 MDE is the dependent
variable, HADS-A score ≥ 14 if PDI-4 GAD is the dependent variable, CAARS-S score
≥ 28 if PDI-4 ADHD is the dependent variable, or MDQ score ≥ 7 with functioning item
score of ≥ 3 if PDI-4 Mania is the dependent variable); 2) patients not meeting the
cutoff score for the corresponding disease but who do meet at least 1 of the other
3 cutoff scores (denoted by “comorbidity” in the graphs); and 3) patients not meeting
the cutoff score for the corresponding disease or any of the other 3 diagnoses.
Faries |