Red Blood Cell Distribution Width Predicts Pulmonary Hypertension Secondary to Chronic Obstructive Pulmonary Disease

Table 1

Baseline characters of demographic, clinical, laboratory tests, and CT.

Parameters	AECOPD with PH (n = 39)	AECOPD without PH (n = 174)	value
Age, years (mean ± SD)	70.95 ± 6.36	70.95 ± 6.82	0.996
Males (n)	20	130	0.004
BMI (kg/m^2)	20.4 ± 1.87	21.63 ± 3.60	0.133
COPD categories (n)			0.321
B	10	28
C	2	15
D	27	131
RDW (%)	15.10 ± 1.72	13.70 ± 1.03	<0.001
WBC (10^3/mm^3)	6.74 ± 3.82	8.23 ± 4.65	0.065
Neutrophils (10^3/mm^3)	5.17 ± 3.33	6.58 ± 4.51	0.068
Leukocytes (10^3/mm^3)	1.01 ± 0.63	1.14 ± 0.60	0.209
N : L ratio	7.03 ± 7.25	7.65 ± 7.46	0.639
HB (g/L)	140.77 ± 21.46	129.10 ± 17.42	<0.001
PLT (10^3/mm^3)	148.15 ± 78.40	167.84 ± 66.43	0.107
Diabetes (n)	3	16	0.766
Hypertension (n)	13	74	0.291
CAD (n, %)	8	32	0.759
Hospital confinement (days)	9.10 ± 3.89	10.50 ± 11.36	0.452
BNP (pg/ml)	574.71 ± 839.00	113.00 ± 122.36	<0.001
PA : A ratio	0.99 ± 0.12	0.83 ± 0.12	<0.001

Notes. AECOPD, acute exacerbation of chronic obstructive pulmonary disease; PH, pulmonary hypertension; BMI, body mass index; COPD, chronic obstructive pulmonary disease; RDW, red blood cell distribution; WBC, white blood cell; N : L, neutrophils-to-leukocytes ratio; Hb, hemoglobin; PLT, platelet; CAD, coronary artery disease; BNP, brain natriuretic peptide; PA, pulmonary artery; A, aorta; PA : A, pulmonary artery-to-ascending aorta ratio.