Common outcome domains and measures in functional neurological disorder intervention studies
| Outcome domain | Commonly used measures |
| Core symptoms | CGI-I: patient-rated=9, clinician-rated=7, both=4 Seizure frequency/remission=30 PMDRS=10 |
| Other physical symptoms | PHQ-15/extended PHQ-15*=7 SCL-90 Somatic Symptom Scale=6 |
| Psychological symptoms | Depression: BDI/BDI-II=12, HAM-D=13 Anxiety: BAI=8, HAM-A=7 Depression and anxiety: HADS=14 |
| Life impact: quality of life/disability/general functioning | SF-36=22, SF-12=3 QoLIE-31=7, QoLIE-10=2 WSAS=10 GAF=8 |
| Health economics/cost–utility | Healthcare resource use=20 (CSRI=4) QALYs (SF-36/EQ-5D-5L)=3 |
| Illness beliefs/attributions | IPQ/modified IPQ=10 |
*Extended PHQ-15 (S29).
BAI, Beck Anxiety Inventory; BDI, Beck Depression Inventory; CGI-I, Clinical Global Impression–Improvement; CSRI, Client Service Receipt Inventory; DES, Dissociative Experiences Scale; GAF, Global Assesment of Functioning; HADS, Hospital Anxiety & Depression Scale; HAM-A, Hamilton Anxiety Rating Scale; HAM-D, Hamilton Depression Rating Scale; IPQ, Illness Perception Questionnaire; PHQ-15, Patient Health Questionnaire-15; PMDRS, Psychogenic Movement Disorder Rating Scale; QALY, quality-adjusted life years; QoLIE-10, Quality of Life in Epilepsy-10; QoLIE-31, Quality of Life in Epilepsy-31; SCL-90, Symptom Checklist-90; SF-12, 12-Item Short Form Health Survey; SF-36, 36-Item Short Form Health Survey; WSAS, Work and Social Adjustment Scale.