Sex Disparity in Characteristics, Management, and In-Hospital Outcomes of Patients with ST-Segment Elevated Myocardial Infarction: Insights from Henan STEMI Registry
Table 1
Baseline characteristics of the study group: demographics, cardiovascular risk factors, medical history, and clinical characteristics at admission.
Variable
Men (N = 3829)
Women (N = 1234)
value
Demographics
Age (years)
60.8 (50.7, 68.7)
69.5 (62.3, 76.8)
<0.001
≥75 years
465 (12.1)
389 (31.5)
<0.001
Tertiary hospital
1969 (51.4)
541 (43.8)
<0.001
Married
3648 (95.3)
1065 (86.3)
<0.001
Farmer
2461 (64.3)
991 (80.3)
<0.001
Cardiovascular risk factors
Hypertension
1575 (41.1)
658 (53.3)
<0.001
Dyslipidemia
2070 (54.1)
651 (52.8)
0.424
Diabetes
583 (15.2)
302 (24.5)
<0.001
Current smoker
1978 (51.7)
25 (2.0)
<0.001
Medical history
Heart failure
31 (0.8)
23 (1.9)
0.002
Stroke
480 (12.5)
176 (14.3)
0.116
Coronary heart disease
253 (6.6)
61 (4.9)
0.035
CKD
20 (0.5)
12 (1.0)
0.083
Clinical characteristics
Myocardial ischemia symptoms
<0.001
Typical
3261 (85.2)
992 (80.4)
Atypical
553 (14.4)
239 (19.4)
No symptom
15 (0.4)
3 (0.2)
Cardiac arrest
125 (3.3)
29 (2.4)
0.104
Anterior myocardial infarction
2125 (55.5)
750 (60.8)
0.001
Killip class
<0.001
I
2853 (74.5)
791 (64.1)
II
569 (14.9)
218 (17.7)
III
204 (5.3)
112 (9.1)
IV
203 (5.3)
113 (9.2)
HR (beats per minute)
<0.001
<50
167 (4.4)
62 (5.0)
50–109
3482 (90.9)
1073 (87.0)
≥110
180 (4.7)
99 (8.0)
SBP (mmHg)
0.044
<90
185 (4.8)
61 (4.9)
90–139
2307 (60.3)
695 (56.3)
≥140
1337 (34.9)
478 (38.7)
cTnI
2.4 (0.4, 28.3)
4.1 (0.6, 38.0)
0.002
CK-MB
1.4 (0.63, 4.62)
1.8 (0.7, 5.2)
<0.001
Creatinine (μmmol/L)
71 (62, 84)
59 (49, 74)
<0.001
LVEF (%)
56 (48, 61)
55 (46, 60)
0.008
Data are expressed as n (%) or median (IQR), unless otherwise noted. The data are the multiple of the measured value and the upper limit of normal value. HR, heart rate; SBP, systolic blood pressure; cTnI, cardiac troponin I; CK-MB, creatine kinase-MB; and LVEF, left ventricular ejection fraction. Stroke contains ischemic and hemorrhagic. Coronary heart disease contains myocardial infarction, percutaneous coronary intervention, and coronary artery bypass graft.
