R/S ratio in lead II, and the prognostic significance of red cell distribution width in acute coronary syndrome

Table 4  χ² analysis of acute coronary syndrome according to blocked major coronary artery variables

	Complication						TVD		Mortality
	No, n (%)	IHF, n (%)	VT, n (%)	AV Block, n (%)	PE/CT, n (%)	APE, n (%)	No, n (%)	Yes, n (%)	No, n (%)	Yes, n (%)
RCA	128 (9.8)	74 (5.7)	11 (0.8)	24 (1.8)	6 (0.4)	5 (0.4)	165 (12.7)	184 (14.2)	243 (20)	37 (2.8)
R1	23 (1.8)	8 (0.7)	0 (0)	6 (0.4)	0 (0)	1 (0.1)	26 (2)	47 (3.6)	26 (2)	4 (0.3)
R2	32 (2.5)	12 (0.9)	0 (0)	3 (0.2)	1 (0.1)	0 (0)	32 (2.5)	45 (3.4)	36 (2.7)	1 (0.1)
R3	34 (2.6)	15 (1.1)	1 (0.1)	4 (0.3)	0 (0)	1 (0.1)	46 (3.5)	23 (1.8)	45 (3.5)	4 (0.3)
R4	18 (1.4)	11 (0.8)	0 (0)	1 (0.1)	1 (0.1)	5 (0.4)	29 (2.2)	11 (0.8)	33 (2.5)	7 (0.5)
L	74 (5.7)	6 (0.4)	14 (1)	9 (0.8)	4 (0.3)	5 (0.4)	81 (6.2)	47 (3.6)	75 (5.7)	17 (1.3)
L1	78 (6.2)	127 (9.8)	18 (6)	5 (0.4)	5 (0.4)	23 (1.8)	93 (7.1)	169 (13)	192 (14.8)	31 (2.4)
L2	133 (10.3)	119 (9.1)	16 (1.2)	7 (0.5)	7 (0.6)	19 (1.5)	181 (14)	94 (7.2)	269 (20.7)	43 (3.3)
L1A	37 (2.8)	4 (0.3)	13 (1)	1 (0.1)	0 (0)	12 (0.9)	163 (12.3)	7 (0.6)	53 (4.1)	7 (0.5)
L1B	23 (1.8)	8 (0.7)	4 (0.3)	2 (0.1)	0 (0)	4 (0.3)	42 (2.1)	4 (0.3)	37 (2.8)	1 (0.1)
L1C	12 (0.9)	2 (0.1)	5 (0.4)	1 (0.1)	0 (0)	2 (0.1)	27 (2)	4 (0.3)	23 (1.8 )	4 (0.3)
L2A	43 (3.3)	9 (0.8)	2 (0.1)	0 (0)	2 (0.1)	5 (0.4)	61 (4.7)	6 (0.5)	58 (4.5)	9 (0.8)
L2B	22 (1.7)	4 (0.3)	1 (0.1)	0 (0)	1 (0.1)	1 (0.1)	30 (2.3)	6 (0.5)	32 (2.5)	0 (0)
L2C	8 (0.6)	3 (0.2)	1 (0.1)	1 (0.1)	0 (0)	0 (0)	14 (11.)	2 (0.1)	15 (1.1)	1 (0.1)
χ2	1631.09						102.32		19.51
P-value	0.001						0.001		0.001

TVD: Tree-vessel disease; RCA: Right coronary artery; R1: Proximal RCA; R2: Mid RCA; R3: Distal RCA; R4: Posterior descending artery; L: Left coronary artery; L1: Circumflex artery; L2: Left anterior descending artery; L1A: Marginal artery; L1B: Posterior descending artery; L1C: Posterior lateral branch; L2A: 1^st diagonal artery; L2B: 2^nd diagonal artery; L2C: Distal left anterior descending artery.