Table 3.

Univariate and multivariate logistic regression.

Comparison (cases vs. controls)	Univariate					Multivariate
	OR	95%CI	χ²	df	p	OR	95%CI	χ²	df	p
Any sedation	0.77	0.42-1.43	0.69	1	0.410	0.67	0.29-1.54	33.13	10	0.349
Multiple sedative doses	2.71	1.48-4.98	10.60	1	0.001*	4.83	1.96-11.94	64.47	10	<0.001*
Intramuscular sedatives	1.68	0.64-4.43	1.18	1	0.294	1.26	0.39-4.10	37.76	10	0.703
Mechanical or physical restraint	1.53	0.64-3.63	0.97	1	0.336	1.75	0.54-5.61	45.11	10	0.350

*Significant p<0.05.