Table 3.

Relationship of OPN level and renal function with the number of diseased coronary artery in CHD group

Groups	Lower OPN group		Higher OPN group		P
	n	%	n	%
Renal function
Moderate/severe renal failure	1	1.2	12	9.3	0.039
Mild renal failure	6	7.4	26	20.2	0.012
Normal	74	91.4		70.5	<0.001
Coronary artery disease
Single-vessel disease	51	63.3	47	36.4	<0.001
Double vessels disease	21	25.9	51	39.5	0.043
Multi-vessel disease	9	11.1	31	24.0	0.020