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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