Relation between Red Cell Distribution Width and Mortality in Critically Ill Patients with Acute Respiratory Distress Syndrome

Table 3

Subgroup analysis of the associations between RDW and 30-day all-cause mortality.

	No. of patients	OR (95%CI)	P value	P interaction
Gender				0.4396
F	198	1.64 (0.84, 3.21)	0.1493
M	206	2.77 (1.40, 5.46)	0.0034
Ethnicity				0.3069
White	290	2.84 (1.57, 5.14)	0.0006
Black	37	0.75 (0.14, 3.94)	0.7340
Other	77	1.40 (0.52, 3.74)	0.5019
CHF				0.8673
No	348	2.33 (1.41, 3.85)	0.0010
Yes	56	1.36 (0.30, 6.10)	0.6905
CAD				0.2028
No	337	2.59 (1.51, 4.44)	0.0005
Yes	67	0.96 (0.33, 2.83)	0.9410
AF				0.3863
No	299	2.56 (1.39, 4.72)	0.0026
Yes	105	1.51 (0.67, 3.37)	0.3193
Stroke				0.4677
No	358	2.31 (1.37, 3.88)	0.0017
Yes	46	1.67 (0.47, 5.93)	0.4300
COPD				0.8542
No	388	2.29 (1.40, 3.75)	0.0009
Yes	16	0.47 (0.04, 5.90)	0.5561
Pneumonia				0.4827
No	192	2.63 (1.28, 5.42)	0.0085
Yes	212	1.81 (0.96, 3.44)	0.0680
Malignancy				0.7659
No	325	1.75 (1.03, 2.96)	0.0375
Yes	79	5.81 (1.23, 27.36)	0.0262
AKI				0.7585
No	367	2.28 (1.37, 3.77)	0.0014
Yes	37	0.48 (0.08, 2.79)	0.4110
RRT				0.0591
No	360	2.06 (1.23, 3.45)	0.0059
Yes	44	1.18 (0.28, 4.97)	0.8174

CHF: congestive heart failure; CAD: coronary artery disease; AFIB: atrial fibrillation; COPD: chronic obstructive pulmonary disease; AKI: acute kidney injury; RRT: renal replacement therapy.
ORs (95% CIs) were derived from logistic multivariate regression models.