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

Table 1 Baseline characteristics of acute coronary syndrome study patients

	All patients	Patients with		z	P-value
		RSR > 1	RSR < 1
Baseline characteristics
Age, mean ± SD, yr	61.56 ± 9.42	60.9 ± 11.36	62.22 ± 10.40	-0.706	0.001
Sex, Male/Female	830/466	255/109	575/357		0.002
Laboratory finding
TG, mg/dL	141.69 ± 81.30	139.30 ± 75.97	143.71 ± 85.52	-0.195	0.232
CHOL, mg/dL	173.71 ± 72.40	173.00 ± 70.72	174.30 ± 74.18	-0.156	0.286
HDL, mg/dL	34.44 ± 9.13	34.14 ± 9.23	34.44 ± 9.14	-0.057	0.398
LDL, mg/dL	108.75 ± 50.88	108.97 ± 50.91	108.56 ± 50.87	-0.404	0.065
LVEF, %	52.29 ± 14.27	41.17 ± 10.41	54.30 ± 11.48	-6.704	0.001
GS	37.88 ± 36.7	48.39 ± 36.44	29.74 ± 37.56	-7.549	0.001
cTn 1, ng/mL	1.86 ± 3.92	1.19 ± 1.84	0.42 ± 0.81	-7.148	0.001
cTn 2	5.02 ± 4.61	5.92 ± 6.12	2.43 ± 3.81	-8.101	0.001
cTn 3	11.81 ± 12.31	9.49 ± 12.74	4.57 ± 7.72	-7.361	0.001
BS, mg/dL	137.31 ± 60.49	136.94 ± 64.19	135.02 ± 63.44	-0.718	0.526
WBC, 103/μL	10.17 ± 3.31	9.89 ± 3.25	10.64 ± 3.82	-0.382	0.247
MCV, fL	88.23 ± 7.32	88.92 ± 7.42	88.48 ± 7.60	-0.249	0.642
MCH, pg	29.31 ± 2.31	29.43 ± 2.41	29.62 ± 2.38	-0.262	0.342
MCHC, g/dL	32.92 ± 0.81	32.96 ± 0.79	32.63 ± 0.72	-0.593	0.329
RDW, %	14.48 ± 2.12	15.42 ± 1.82	14.92 ± 2.48	-7.254	0.001
MPV, fL	8.53 ± 1.36	10.48 ± 3.47	8.96 ± 2.24	-2.823	0.019
Neu, %	6.25 ± 3.56	7.42 ± 1.44	6.82 ± 2.31	-14.762	0.001
Lymph, %	2.13 ± 1.12	2.32 ± 1.21	2.02 ± 1.19	-0.667	0.422

TG: Triglycerides; CHOL: Cholesterol; HDL: High density lipoprotein; LDL: Low density lipoprotein; RSR: R to S ratio; LVEF: Left ventricular ejection fraction; GS: Gensini score; cTn: Troponin; BS: Blood sugar; WBC: White blood cell; MCV; Mean corpuscular volume; MCH: Mean corpuscular haemoglobin; MCHC: Mean corpuscular haemoglobin concentration; RDW: Red cell distribution width; MPV: Mean platelet volume; Neu: Neutrophil; Lymph: Lymphocyte. P < 0.05.