The association of Red cell distribution width and in-hospital mortality in older adults admitted to the emergency department

Table 3 Odds ratios for RDW in the prediction of all-cause in-hospital mortality

RDW as categorical variable OR (95 % CI)
	1^st quartile < 12.8 [N = 450, death = 4]	2^nd quartile 12.8–13.3 [N = 542, death = 8]	3^rd quartile 13.4–14.2 [N = 472, death = 10]	4^th quartile > 14.2 [N = 526, death = 52]	p
Model 1	1 (Reference)	1.46 (0.44–5.61)	1.83 (0.59–6.86)	5.08 (1.94–17.50)	< 0.001
Model 2	1 (Reference)	1.25 (0.36–4.97)	1.68 (0.53–6.35)	3.82 (1.42–13.38)	0.006
RDW as continuous variable OR (95 % CI)
Model 1	1.284 (1.160–1.422)				< 0.001
Model 2	1.218 (1.095–1.355)				< 0.001
Model 1: Sex + Cancer + HTN + BUN + MCV + Na + CRP + ESR
Model 2: Sex + Cancer + HTN + BUN + MCV + NA + CRP + ESR + SOFA

Abbreviation: RDW red cell distribution width, OR odds ratios; CI confidence interval

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