Myocardial bridge-related coronary heart disease: Independent influencing factors and their predicting value

Table 1 Comparison of clinical characteristics between the coronary heart disease group and the control group, n (%)

Characteristic	CHD group (n =1060)	Control group (n = 658)	t/X2 value	P-value
Age	60.25 ± 13.25	52.65 ± 10.86	12.360	0.000
Gender (Male/Female)	592/468	388/270	1.610	0.204
Family history of CHD	215 (20.3)	113 (17.2)	2.542	0.111
Hypertension	707 (66.7)	352 (53.5)	29.929	0.000
Diabetes	424 (40.0)	102 (15.5)	114.702	0.000
Smoking	286 (27.0)	122 (18.5)	15.970	0.000
ST-segment changes	456 (43.0)	72 (10.9)	196.224	0.000
Abnormal TC	445 (42.0)	264 (40.1)	0.579	0.447
Abnormal LDL-C	583 (55.0)	260 (39.5)	38.960	0.000
Abnormal HDL-C	456 (43.0)	270 (41.0)	0.656	0.418
Abnormal TG	472 (44.5)	289 (43.9)	0.061	0.805
Abnormal Lp(a)	311 (29.3)	182 (27.7)	0.560	0.454
Abnormal HCY	225 (21.2)	115 (17.5)	3.595	0.058
Abnormal PAY-1	178 (16.8)	99 (15.0)	0.916	0.339
Abnormal fibrinogen	157 (14.8)	87 (13.2)	0.842	0.359
Combined MB	235 (22.2)	53 (8.1)	57.969	0.000

CHD: Coronary heart disease; MB: Myocardial bridge; TC: Total cholesterol; TG: Triglyceride; LDL-C: Low-density lipoprotein cholesterol; Lp(a): Lipoprotein(a); HCY: Homocysteine; PAI-1: Plasminogen activator inhibitor-1.