Plasma brain natriuretic peptide, platelet parameters, and cardiopulmonary function in chronic obstructive pulmonary disease

Table 4 Comparison of plasma brain natriuretic peptide and platelet parameters among the different heart function classification subgroups

Index	I (n = 16)	II (n = 14)	III (n = 13)	IV (n = 9)	F	P value
Plasma BNP (pg/L)	31.15 ± 5.46	53.58 ± 7.49a	78.99 ± 15.44a,c	93.46 ± 12.05a,c,e	88.199	0.000
PLT (×109/L)	143.16 ± 19.45	131.16 ± 20.41a	107.46 ± 23.58a,c	96.52 ± 20.11a,c,e	12.866	0.000
PDW (fL)	15.66 ± 2.13	17.99 ± 3.33a	22.16 ± 2.68a,c	26.45 ± 4.52a,c,e	27.386	0.000
PCT (%)	0.20 ± 0.04	0.17 ± 0.04a	0.15 ± 0.03a,c	0.13 ± 0.02a,c,e	6.817	0.001
MPV (fL)	14.03 ± 2.44	18.16 ± 3.07a	22.15 ± 4.05a,c	24.05 ± 3.74a,c,e	26.531	0.000

^aP < 0.05 vs group I.

^cP<0.05 vs group II.

^eP < 0.05 vs group III.

BNP: Brain natriuretic peptide; PLT: Platelet count; PDW: Platelet distribution width; PCT: Plateletcrit; MPV: mean platelet volume.