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Table 5 DASA on previous day, DRILL Behaviours and DRILL Interventions. Spearman rank correlation coefficients

From: A tool to evaluate proportionality and necessity in the use of restrictive practices in forensic mental health settings: the DRILL tool (Dundrum restriction, intrusion and liberty ladders)

DRILL Behaviour ladders DASA Previous Day DASA Same Day
 • Violence 0.168 0.304
 • Self-harm 0.004 0.011
 • Placing others at risk 0.259 0.317
 • Escape 0.135 0.123
 • Non-compliance with treatment 0.400 0.455
DRILL Interventions ladders
 • De-escalation 0.314 0.375
 • Restriction of privacy 0.392 0.414
 • Medication 0.275 0.362
 • Physical restraint 0.213 0.317
 • Restriction on use of space 0.277 0.308
 • Restriction on bodily space & integrity 0.328 0.411
 • Mechanical restraint 0 0
 • Situational coercion 0.358 0.431