. Author manuscript; available in PMC: 2011 Oct 4.

Published in final edited form as: J Heart Lung Transplant. 2011 May 28;30(10):1161–1168. doi: 10.1016/j.healun.2011.04.013

Table 2.

Pulmonary Outcomes and Resource Utilization According to RIFLE Classification

Variable	Rifle-0 N=39	Risk N=28	Injury N=24	Failure N=15	P-value^*
Vent time, hours (SD)	46 (75)	65 (80)	76 (103)	112 (114)	0.2
ICU LOS, days (SD)	4 (7)	11 (19)	14 (40)	18 (20)	0.2
Hospital LOS, days (SD)	19 (18)	38 (60)	29 (36)	38 (24)	0.2
Re-intubation, N (%)	4 (11%)	5 (18%)	3 (13%)	7 (46%)	0.02
Primary graft dysfunction, N (%)	1 (4%)	3 (14%)	2 (10%)	1 (13%)	0.6
Tracheostomy, N(%)	5 (12%)	4 (14%)	4 (17%)	7 (46%)	0.048
% Predicted FEV1 at 1 year, (SD)	68% (19)	78% (20)	61% (31)	55% (23)	0.1

SD=standard deviation; FEV1=forced expiratory volume in 1 second; ICU=intensive care unit; LOS=length of stay

P-value for continuous variables based on one-way analysis of variance with post-hoc comparisons performed using the Tukey Kramer method, or chi-square analysis for categorical variables