The Prognostic Value of Echocardiographic Wall Motion Score Index in ST-Segment Elevation Myocardial Infarction

Table 1

Distribution of variables of interest by all-cause 12-month mortality following acute ST-segment elevation myocardial infarction (STEMI) treated with primary percutaneous intervention (PCI).

Variable	Alive (N = 1132)	Deceased (N = 49)	Total (N = 1181)	value
Age^a (years)	62.0 (12.2)	74.5 (12.2)	62.5 (12.5)	<0.001
Weight^a (kg)	84.4 (17.7)	79.2 (18.8)	84.2 (17.7)	0.041
BMI^b (kg/m^2)	28.3 (5.1)	27.4 (6.0)	28.3 (5.1)	0.20
eGFR^b (mL/min/1.73 m^2)	79.0 (65.0–90.0)	50.0 (43.0–75.0)	78.0 (64.0–90.0)	<0.001
Male sex^c	881 (77.8%)	34 (69.4%)	915 (77.5%)	0.17
Diabetes^c	181 (16.0%)	13 (26.5%)	194 (16.4%)	0.051
Hypertension^c	530 (46.8%)	26 (53.1%)	556 (47.1%)	0.39
Dyslipidemia^c	496 (43.8%)	21 (42.9%)	517 (43.8%)	0.89
Family history^d	431 (38.1%)	5 (10.2%)	436 (36.9%)	<0.001
Current smoker^c	404 (35.7%)	13 (26.5%)	417 (35.3%)	0.19
Previous MI^d	63 (5.6%)	5 (10.2%)	68 (5.8%)	0.20
Previous CABG^d	28 (2.5%)	1 (2.0%)	29 (2.5%)	1
Previous PCI^c	101 (8.9%)	8 (16.3%)	109 (9.2%)	0.08
Multivessel disease^c	376 (33.2%)	25 (51.0%)	401 (34.0%)	0.01
Multivessel PCI^c	38 (3.4%)	3 (6.1%)	49 (4.1%)	0.30
TIMI III post PCI	1075 (95.0%)	42 (85.7%)	1117 (94.6%)	0.005
Cardiogenic shock^c	13 (1.1%)	6 (12.2%)	19 (1.6%)	<0.001
DTB^b (minutes)	46 (32–73)	66 (42–83)	47 (32–74)	0.002
FMCTB^b (minutes)	100 (84–123)	138 (107–167)	101 (85–125)	<0.001
STB^b (minutes)	172 (131–262)	220 (164–271)	173 (132–266)	0.012
Anterior infarct^c	470 (41.5%)	30 (61.2%)	500 (42.3%)	0.006
Drug eluting stent^c	818 (72.3%)	29 (59.2%)	847 (71.7%)	0.047
Atrial fibrillation^c	56 (4.9%)	5 (10.2%)	61 (5.2%)	0.1
LVEF%^a	50.3 (10.2)	40.9 (13.7)	49.9 (10.5)	<0.001
WMSI^b	1.6 (1.3–1.9)	2.2 (1.8–2.5)	1.6 (1.3–1.9)	<0.001
GRACE^b	127 (110–144)	139 (118–165)	127 (110–144)	0.003
TIMI^b	3.0 (2.0–5.0)	6.0 (4.0–8.0)	3.0 (2.0–5.0)	<0.001
WMSI ≥1.8^c	364 (32.2%)	37 (75.5%)	401 (34%)	<0.001
LVEF <40%^c	166 (14.7%)	25 (51.0%)	191 (16.2%)	<0.001

Summary statistics: ^amean (SD) with value derived from Student's t-test; ^bmedian (IQR) with value derived from Wilcoxon’s rank-sum test; frequency (%) with values from ^cPearson’s chi-square test or ^dFisher’s exact test. BMI–Body Mass Index; eGFR–Estimated Glomerular Filtration Rate; MI–Myocardial Infarction; CABG–Coronary artery bypass grafting; PCI–Percutaneous Coronary Intervention; DTB–Door to balloon; FMCTB–First Medical Contact to Balloon; STB–Symptom to Balloon; LVEF–Left Ventricular Ejection Fraction; WMSI–Wall Motion Score Index.