Reduced Left Ventricular Ejection Fraction Is a Risk Factor for In-Hospital Mortality in Patients after Percutaneous Coronary Intervention: A Hospital-Based Survey
Table 1
Baseline clinical characteristics of patients stratified by ejection fraction (at admission).
Variables
Patients with EF <50%
Patients with EF ≥50%
P value
N
136
1464
Age (year)
62.18 ± 10.31
60.06 ± 10.89
0.029
BMI (kg/m2)
22.99 ± 3.14
23.95 ± 3.83
0.023
SBP (mmHg)
98.83 ± 28.82
102.55 ± 28.69
0.150
DBP (mmHg)
77.93 ± 11.30
77.12 ± 11.78
0.440
Heart rate (times/ min)
71.55 ± 13.02
72.12 ± 11.13
0.581
serum creatinine (umol/L)
83.17 ± 68.07
71.49 ± 30.89
<0.001
Uric acid (mmol/L)
316.92 ± 106.69
302.22 ± 91.59
0.086
Total bilirubin (μmol/L)
11.03 ± 6.16
9.61 ± 8.26
0.055
Total cholesterol (mmol/L)
4.10 ± 1.00
4.27 ± 1.06
0.086
Triglyceride (mmol/L)
1.57 ± 0.80
1.95 ± 1.46
0.005
High density lipoprotein (mmol/L)
1.01 ± 0.31
1.08 ± 0.31
0.022
Low density lipoprotein (mmol/L)
2.61 ± 0.88
2.65 ± 0.93
0.657
Sex
0.628
female
41 (30.15%)
471 (32.17%)
male
95 (69.85%)
993 (67.83%)
History of heart failure
<0.001
no
95 (69.85%)
1290 (88.24%)
yes
41 (30.15%)
172 (11.76%)
History of atrial fibrillation
0.076
no
130 (95.59%)
1434 (97.95%)
yes
6 (4.41%)
30 (2.05%)
History of stroke
0.051
no
124 (91.18%)
1392 (95.08%)
yes
12 (8.82%)
72 (4.92%)
History of PCI
0.806
no
128 (94.12%)
1370 (93.58%)
yes
8 (5.88%)
94 (6.42%)
History of CABG
0.778
no
135 (99.26%)
1456 (99.45%)
yes
1 (0.74%)
8 (0.55%)
Hypertension
<0.001
no
87 (63.97%)
694 (47.44%)
yes
49 (36.03%)
769 (52.56%)
Diabetes
0.615
no
104 (76.47%)
1146 (78.33%)
yes
32 (23.53%)
317 (21.67%)
Smoking
0.529
no
86 (63.24%)
965 (65.92%)
yes
50 (36.76%)
499 (34.08%)
Types of patients
0.945
STEMI
51 (37.5%)
536 (36.6%)
NSTEMI
42 (30.8%)
443 (30.2%)
Unstable angina
43 (31.7%)
485 (33.2%)
Aspirin
0.571
no
1 (0.74%)
19 (1.30%)
yes
135 (99.26%)
1443 (98.70%)
Clopidogrel
0.001
no
5 (3.68%)
65 (4.44%)
yes
129 (94.85%)
1397 (95.49%)
No clear
2 (1.47%)
1 (0.07%)
-blocker
0.816
no
37 (27.21%)
412 (28.14%)
yes
99 (72.79%)
1052 (71.86%)
ACEI
0.344
no
53 (38.97%)
632 (43.17%)
yes
83 (61.03%)
832 (56.83%)
Calcium antagonists
<0.001
no
122 (89.71%)
1077 (73.57%)
yes
14 (10.29%)
387 (26.43%)
Statin
0.777
no
9 (6.62%)
88 (6.01%)
yes
127 (93.38%)
1376 (93.99%)
Data are presented as number (percent) or mean ±standard deviation. Body mass index=BMI; systolic blood pressure=SBP; diastolic blood pressure=DBP; percutaneous coronary intervention=PCI; coronary artery bypass grafting=CABG; ST segment elevation myocardial infarction=STEMI; non-ST-elevation myocardial infarction=NSTEMI; ACEIs=angiotensin-converting enzyme inhibitors.
