Estimated case-fatality rates and rate ratios for in-hospital death among hospitalizations with a PE diagnosis, 2001−2008, NHDS, United States.
Maximum subgroup sample size.b
P-value for Wald-F test.d
Rate ratio from log-linear regression model that adjusted for age, sex, race, days of stay, type of admission, cancer, pneumonia, and fractures.f
Referent rate ratio = 1.00.g
Estimate may not be reliable due to underreporting of race information.h
Unstable estimate due to small subgroup size.