. Author manuscript; available in PMC: 2014 Oct 1.

Published in final edited form as: Crit Care Med. 2013 Oct;41(10):2292–2297. doi: 10.1097/CCM.0b013e31828cf0c0

Table 2.

Estimated relative risks by modified Poisson regression for survival, 2004-2010 versus 2000-2003 *adjusted for within-center variability, hospital characteristics and baseline factors associated with outcome. The first three models were controlled for hospital characterstics and pre-arrest factors showing at least a trend (p<0.15) towards association on univariate analysis. Due to a small number of patients discharged alive with unfavorable outcomes among survivors, the fourth model was adjusted only for hospital characteristics and pre-arrest factors showing a significant (p<0.05) association with outcome.

	ESTIMATED RELATIVE RISK* 2004-2010 vs. 2000-2003 (CI⁹⁵)
ROSC^†	1.08 (1.03-1.13)
24 hour survival^†	1.05 (0.99-1.12)
Survival to hospital discharge^‡	1.02 (0.91-1.14)
Favorable Neurological Outcome among Survivors‡	1.035 (1.005-1.07)

^†

All CPR events.

^‡

Index CPR events only.