Table 3.

Subgroup analysis of associations between RDW and hospital mortality.

	No. of patients	HR (95% CI)	P value
Congestive heart failure
No	463	1.11 (0.98–1.25)	0.1066
Yes	32	1.11 (0.72–1.71)	0.6286
Atrial fibrillation
No	474	1.05 (0.90–1.23)	0.5128
Yes	21	1.10 (0.83–1.45)	0.5013
Chronic kidney disease
No	439	1.07 (0.93–1.24)	0.3552
Yes	56	1.35 (1.05–1.74)	0.0198
Chronic liver disease
No	472	1.12 (1.00–1.26)	0.0504
Yes	23	0.43 (0.07–2.46)	0.3412
Malignancy
No	468	1.25 (1.06–1.47)	0.0075
Yes	27	1.17 (0.95–1.43)	0.1363
Coronary artery disease
No	427	1.14 (1.02–1.28)	0.0228
Yes	68	1.06 (0.71–1.58)	0.7700
Vasoactive drug
No	436	1.16 (1.01–1.33)	0.0371
Yes	59	1.06 (0.89–1.27)	0.4982
RRT
No	470	1.09 (0.94–1.26)	0.2404
Yes	25	1.01 (0.80–1.28)	0.9214

SBP: systolic blood pressure; DBP: diastolic blood pressure; WBC: white blood cell; BUN: blood urea nitrogen; RRT: Renal replacement therapy.

Significance level p < 0.05.