Nosocomial infection, length of stay, and time-dependent bias.
Nosocomial pneumonia and its impact on length of stay are major healthcare concerns. From an epidemiological perspective, nosocomial pneumonia is a time-dependent event. Any statistical analysis that does not explicitly model this time dependency will be biased. The bias is not redeemed by adjusting for baseline information.
Beyersmann
Jan
J
Freiburg Centre for Data Analysis and Modelling, University of Freiburg, Germany. jan.beyersmann@fdm.uni-freiburg.de
Kneib
Thomas
T
Schumacher
Martin
M
Gastmeier
Petra
P
D015982:Bias; D003428:Cross Infection / Q000453:epidemiology*; D006801:Humans; D007902:Length of Stay / Q000706:statistics & numerical data; D013997:Time Factors