TABLE 3.

Aggression and restraint rates during baseline and intervention periods.

	Experimental group		Control group		IRR [95% CI] Experimental/Control	p-value
	N	Rate [95% CI]	N	Rate [95% CI]
Treatment days
Baseline	14,796		16,099
Intervention	14,893		14,238
Aggressive incidents
Baseline	441	2.981 [2.715; 3.272]	481	2.988 [2.732; 3.267]	0.998 [0.877;1.135]	*
Intervention	136	0.913 [0.772; 1.080]	486	3.413 [3,123; 3.731]	0.268 [0.221; 0.324]	**
Change		-69.4%		+ 14.2%	-73.2%
SOAS-R ≥ 9
Baseline	334	2.257 [2.028; 2.513]	349	2.168 [1.952; 2.408]	1.041 [0.896; 1.210]	*
Intervention	55	0.369[0.284; 0.481]	370	2.599 [2.347; 2.877]	0.142 [0.107;0.189]	**
Change		-83.7%		+19.9%	-86.4%
Restraints
Baseline	377	2.548 [2.303; 2.819]	394	2.447 [2.217; 2.701]	1.041 [0.904: 1.199]	*
Intervention	192	1.289 [1.119; 1.485]	342	2.402 [2.160; 2.671]	0.537 [0.450; 0.640]	**
Change		- 49.4%		- 1.8%	- 48.4%
Restraints duration, h
Baseline	3,290	0.926 [0.895; 0.959]	5,798	1.501 [1.462; 1.540]	0.617 [0.592; 0.644]	**
Intervention	2,130	0.596 [0.571; 0.622]	6,586	1.927 [1.881; 1.974]	0.309 [0.294; 0.325]	**
Change		-35.6%		+ 28.4%	- 49.9%

IRR, Incidence rate ratio; p, statistical difference for the incidence rate between the experimental and control groups in each study period; * no statistically significant difference (p-value of > 0.05); ** p-value of < 0.001.