Table 1 Key modifier words used in the natural language processing application for OCS.

From: Use of Natural Language Processing to identify Obsessive Compulsive Symptoms in patients with schizophrenia, schizoaffective disorder or bipolar disorder

OCS Keywords

YBOCS Keywords

Patient Insight Keywords

Obses* (Includes variations such as ‘obsessive’ and ‘obsessional’)

Clean* (Includes variations such as ‘cleaned’ or ‘cleanliness’)

Distres* (Includes variations such as distressed or distressing)

Compul* Includes varations such as Compulsive or compulsively, but specifically excluding “compulsory”.

Wash* (Includes variations such as washing or washed)

Unwanted

OCD* (Includes variations such as OCD and O.C.D)

Check* (Includes variation such as checking and checked)

Repugnant

Hoard* (Includes varations such as Hoarding and Hoarded)

Repeat* (Includes varations such as repeatedly or repetitive)

Repulsive

Ritual* (Includes variations such as ‘ritualistic’ and ‘ritually’)

Count* (Includes variations such as counted or counting)

Egodystonic

 

Order* (Includes variations such as ordered or ordering)

Intrusive

 

Counting

Intruding

 

Rearrange*(Includes variations such as rearranging or rearranged)

Unable to stop