Association between Red Blood Cell Distribution Width and Short-Term Mortality in Patients with Paralytic Intestinal Obstruction: Retrospective Data Analysis Based on the MIMIC-III Database

Table 3

OR (95% CI) for 28-day mortality across groups of RDW.

Exposure	Crude model	Minimally adjusted model	Fully adjusted model
Clinical parameters, n	773	773	761
RDW start	1.25 (1.15, 1.36)	1.25 (1.15, 1.37)	1.22 (1.10, 1.35)
	<0.001	<0.001	<0.001
Per 1 SD	1.60 (1.35, 1.90)	1.60 (1.34, 1.91)	1.51 (1.23, 1.85)
	<0.001	<0.001	<0.001
RDW tertile
Low	Reference	Reference	Reference
Middle	2.18 (1.23, 3.84)	2.03 (1.15, 3.60)	1.89 (1.04, 3.44) 0.036
	0.007	0.015
High	4.10 (2.40, 6.99)	3.90 (2.27, 6.68)	3.29 (1.82, 5.93)
	<0.001	<0.001	<0.001
P for trend	<0.001	<0.001	<0.001

Notes: For the crude model, we did not adjust other covariants. For the minimally adjusted model, we adjusted age, sex, and ethnicity. For the full adjusted model, we adjust sex, ethnicity, age, SBP, DBP, BUN, WBC, serum glucose, creatinine, serum anion gap, APS III, OASIS, MLODS, congestive heart failure, chronic pulmonary disease, renal failure, and liver disease. Abbreviations: CI, confidence interval; OR, odds ratio; RDW, red cell distribution width; SD, standard deviation.