Bipolar disorder and PTSD screening and telepsychiatry diagnoses in primary care.

Cerimele JM, LePoire E, Fortney JC, Hawrilenko M, Unützer J, Bauer AM. Bipolar disorder and PTSD screening and telepsychiatry diagnoses in primary care. General hospital psychiatry. 2020 Jul 1; 65:28-32.

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Abstract:

OBJECTIVE: To describe clinical diagnoses from telepsychiatrist consultation in safety net primary care settings for adult patients screening positive for bipolar disorder, PTSD, or both. METHODS: Patients were administered the PTSD Checklist (PCL-6) and the Composite International Diagnostic Interview 3.0 (CIDI) for bipolar disorder. Positive screening result definitions were PCL-6 score of 14 and CIDI positive stem question responses and score of 8. Patient characteristics were assessed by survey. Psychiatrists consulted in primary care via telehealth and recorded clinical diagnoses. RESULTS: Among 767 patients attending consultation with a telepsychiatrist, 495 (65%) screened PCL-6 positive only, 249 (32%) screened both PCL-6 and CIDI positive, and 23 (3%) screened CIDI positive. Approximately two-thirds screening PCL-6 positive were diagnosed with PTSD, and most had comorbid mood disorder diagnoses, with bipolar disorder diagnosis occurring more often in those screening CIDI positive compared to negative (42% vs. 15%). Positive predictive values were 64.9% for PCL-6 and 43.8% for CIDI. CONCLUSION: Most individuals screening positive for PTSD and/or bipolar disorder had two or more psychiatric diagnoses; misclassification exists for both instruments but was greater for CIDI. Psychiatrist consultation early in treatment for individuals screening positive on the PCL-6 and/or CIDI could help clarify diagnoses and improve treatment planning.