Table 3

Unadjusted and adjusted associations between RDW category and 90-day postdischarge mortality (n=1567)

	≤13.3	13.3–14.0	14.0–14.7	14.7–15.8	15.8%–17.0%	>17.0%	AUC	HL-χ²	BIC
90-day postdischarge mortality	OR (95% CI), p	OR (95% CI), p	OR (95% CI), p	OR (95% CI), p	OR (95% CI), p	OR (95% CI), p
Crude	1.00 (referent)*	0.92 (0.20 to 4.17), 0.91	2.20 (0.60 to 8.00), 0.23	2.64 (0.77 to 9.06), 0.12	6.89 (2.08 to 22.87), 0.002	7.93 (2.40 to 26.16), 0.001	0.69	0.99	774
Adjusted†	1.00 (referent)*	0.59 (0.13 to 2.72), 0.50	1.35 (0.36 to 5.11), 0.66	1.58 (0.44 to 5.67), 0.48	3.64 (1.04 to 12.68), 0.043	4.58 (1.32 to 15.93), 0.017	0.77	0.49	801

*Referent in each case is RDW≤13.3.
†Estimates adjusted for age, race, gender, Deyo-Charlson Index, sepsis and number of organs with acute failure.
AUC, area under the receiver operating characteristic curve; BIC, Bayesian information criterion; HL-χ², Hosmer-Lemeshow χ² goodness-of-fit test; RDW, red cell distribution width.