From: Nucleated red blood cells in the blood of medical intensive care patients indicate increased mortality risk: a prospective cohort study
Risk model
Score range of risk model
Incidence of NRBCs
APACHE II
< 11
4.7% (6/127)
11–20
18.4% (28/152)
21–30
30.6% (22/72)
> 30
34.4% (11/32)
SAPS II
< 21
5.6% (4/71)
21–40
13.3% (27/203)
41–60
34.3% (23/67)
> 60
30.9% (13/42)