. 2010 Jun 24;138(6):1340–1348. doi: 10.1378/chest.10-0292

Table 5.

—Treatment Limitation Patterns by Study Group and Unit

	Control	Experimental	χ²	P Value
DNAR order in place among patients who died
Medical ICUs	10/12 (83.3)	37/38 (97.4)	3.19	.07
Nonmedical ICUs	17/21 (81.0)	39/48 (81.3)	0.001	.98
Tracheostomy performed among patients who died
Medical ICUs	6/11 (54.5)	5/38 (13.2)	8.39	.004^a
Nonmedical ICUs	9/21 (42.9)	18/48 (37.5)	0.18	.68
Tracheostomy performed among patients with DNAR
Medical ICUs	10/19 (52.6)	13/51 (25.5)	4.62	.03^b
Nonmedical ICUs	13/27 (48.1)	27/56 (48.2)	0.00	.99

Data are presented as No./Total (%). See Table 1 for expansion of abbreviations.

ɸ = 0.41.

ɸ = 0.26.