B ackground: Red blood cell distribution width
(RDW) that describes red blood cell volume heterogeneity
is a common laboratory test. Our aim was to focus on
th e association between RDW and a c ute pancreatitis associated
lung injury (APALI). Methodology: A total of 152
acute pancreatitis (AP) patients who conformed to the criteria
w ere included in this study. The demographic data,
medical histories and laboratory measures was obtained
from each patient on admission, further, the medical histories
and biological data were analyzed, retrospectively.
Results: Increased RDW at admission was observed in
patients with APALI compared with the non-APALI groups.
Our results exhibited that RDW was an independent risk
factor for APALI after adjusting leukocyte, neutrophil percentage,
random blood glucose (RBG), total bilirubin (TB)
and total bile acid（TBA）(Crude model) (OR=2.671;CI
95% 1.145-6.230; P=0.023), further adjustment based on
Crude model for sex and age did not attenuate the significantly
high risk of APALI in patients with AP, RWD still
remained a ro les as an independent risk factor for APALI
(OR=2.653;CI95 % 1.123-6.138; P=0.026). Conclusions: Our study demonstrate that RDW at admission is associated
with APALI and should be considered as an underlying
risk factor of APALI.