Table 4

Unadjusted and adjusted associations between red blood distribution width (RDW) category, discharge to facility and hospital readmission (n=1567)

	≤13.3	13.3 to 14.0	14.0 to 14.7	14.7 to 15.8	15.8% to 17.0%	>17.0%
	OR (95% CI), p	OR (95% CI), p	OR (95% CI) ,p	OR (95% CI), p	OR (95% CI), P	OR (95% CI), p
30-day hospital readmission
Crude	1.00 (referent)*	1.29 (0.67 to 2.47), 0.44	1.83 (1.00 to 3.36), 0.052	2.79 (1.58 to 4.91), <0.001	3.25 (1.82 to 5.82), <0.001	2.76 (1.54 to 4.97), 0.001
Adjusted†	1.00 (referent)*	1.12 (0.58 to 2.16), 0.74	1.47 (0.78 to 2.76), 0.24	2.19 (1.20 to 3.98), 0.010	2.33 (1.26 to 4.33), 0.007	1.91 (1.02 to 3.58), 0.043
90-day hospital readmission
Crude	1.00 (referent)*	1.89 (1.07 to 3.33), 0.028	2.48 (1.44, 4.26), 0.001	3.39 (2.02 to 5.68), <0.001	4.29 (2.53 to 7.28), <0.001	3.60 (2.11 to 6.12), <0.001
Adjusted†	1.00 (referent)*	1.60 (0.90 to 2.86), 0.11	1.94 (1.10, 3.41), 0.022	2.51 (1.46 to 4.32), 0.001	2.90 (1.66 to 5.09), <0.001	2.30 (1.31 to 4.06), 0.004
Discharge to facility
Crude	1.00 (referent)*	2.61 (1.40 to 4.85), 0.002	4.35 (2.40 to 7.86), <0.001	5.63 (3.18 to 9.97), <0.001	7.66 (4.27 to 13.73), <0.001	7.43 (4.14 to 13.31), <0.001
Adjusted†	1.00 (referent)*	1.65 (0.85 to 3.19), 0.14	2.17 (1.15 to 4.10), 0.017	2.54 (1.37 to 4.71), 0.003	3.03 (1.61 to 5.69), 0.001	2.99 (1.58 to 5.64), 0.001

*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.