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. 2017 Jul 24;19(7):e259. doi: 10.2196/jmir.7452

Table 2.

Example of entity-attribute-value (EAV) data model in the ontology.

Entity Attribute Values
Self-harm

History of self-harm Yes


No

Reason for self-harm Academic stresses


To rebel against parents’ values


Being bullied by peers


Psychiatric problems


Chronic poverty


Traumatic events

Method of self-harm Cutting


Piercing


Burning


Carving


Hitting or punching


Pulling out hair


Severe scratching

Frequency of urge to self-harm <1 hour


1-3 hours


3-6 hours


6-12 hours


12-24 hours


>1 day