Table 2.

Hazard ratios (HRs) for all-cause mortality based on RDW/ALB ratios in pulmonary embolism patients.

RDW/ALB ratio	Crude model		Model I		Model II		Model III
	HR(95%CI)	P	HR(95%CI)	P	HR(95%CI)	P	HR(95%CI)	P
In-hospital mortality
Low	Ref		Ref		Ref		Ref
Middle	2.25 (1.40, 3.62)	.0008	3.25 (1.70, 6.20)	.0003	2.16 (1.34, 3.48)	.0017	2.22 (1.38, 3.57)	.0011
High	2.54 (1.59, 4.05)	<.0001	2.17 (1.11, 4.24)	.0228	2.31 (1.43, 3.72)	.0006	2.58 (1.61, 4.12)	<.0001
1-yr all-cause mortality
Low	Ref		Ref		Ref		Ref
Middle	1.91 (1.38, 2.65)	<.0001	1.90 (1.37, 2.64)	<.0001	1.88 (1.35, 2.62)	.0002	2.03 (1.32, 3.12)	.0012
High	2.78 (2.03, 3.79)	<.0001	2.90 (2.13, 3.97)	<.0001	2.50 (1.82, 3.44)	<.0001	2.15 (1.39, 3.33)	.0006

Crude model: we did not adjust other covariants.

Model I: we adjusted age gender and race.

Model II: we adjusted age, gender, race, hypertension, diabetes, chronic lung disease, CAD, CHF, CKD, liver disease, malignancy and obesity.

Model III: we adjusted age, gender, race, heart rate, respiration rate, SBP, SpO₂, Tempeature, hypertension, diabetes, chronic lung disease, CAD, CHF, CKD, liver disease, malignancy, obesity, Na+, K+, glucose, BUN, Cr, HGB, WBC, PLT, ALT and AST.

ALB = albumin, ALT = alanine aminotransferase, AST = aspartate transaminase, BUN = blood urea nitrogen, CAD = coronary atherosclerotic disease, CHF = congestive heart failure, CI = confidence interval, CKD = completely knocked down, Cr = creatinine, HGB = hemoglobin, K+ = kalium, Lac = lactic acid, Na+ = Sodium, PLT = platelet, RAR = RDW/ALB ratio, RDW = red blood cell distribution width, Ref = reference, SBP = systolic pressure, SpO2 = blood oxygen saturation, WBC = white blood cells.