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Table 2 Differences in clinical data between the two groups

From: Clinical characteristics and factors associated with coronary stenosis proximal to a myocardial bridge: a retrospective study

Characteristics

All (n = 244)

Non-stenosis group (n = 153)

Stenosis group (n = 91)

P

Triglycerides, mmol/L, median (IQR)

1.65 (1.19,2.55)

1.52 (1.16,2.43)

1.705 (1.285,2.805)

0.146

Cholesterol, mmol/L, median (IQR)

4.51 (3.75,5.27)

4.45 (3.71,5.15)

4.55 (3.79,5.44)

0.523

High-density lipoprotein, mmol/L, median (IQR)

0.93 (0.81,1.11)

0.92 (0.81,1.14)

0.94 (0.805,1.105)

0.919

Low-density lipoprotein, mmol/L, median (IQR)

2.58 (2.1,3.27)

2.54 (2.1,3.15)

2.6 (2.115,3.59)

0.198

Very low-density lipoprotein, mmol/L, median (IQR)

0.32 (0.24,0.49)

0.3 (0.23,0.49)

0.34 (0.26,0.52)

0.250

Coronary angiography

 Diagnosis, n (%)

   

< 0.001

  Complicated with angina pectoris

124 (50.8)

66 (43.1)

58 (63.7)

 

  Complicated with AMI

50 (20.5)

17 (11.1)

33 (36.3)

 

  Simple myocardial bridge

70 (28.7)

70 (45.8)

0

 

 Location of the myocardial bridge, n (%)

   

< 0.001

  Proximal + middle proximal segment of LAD

7 (2.9)

2 (1.3)

5 (5.5)

 

  Middle segment of LAD

191 (78.3)

137 (89.5)

54 (59.3)

 

  Middle distal + distal segment of the LAD

46 (18.9)

14 (9.2)

32 (35.2)

 

 Stent implantation after angiography, n (%)

44 (18.0)

14 (9.2)

30 (33.0)

< 0.001

  1. IQR Interquartile range, AMI Acute myocardial infarction, LAD Left anterior descending coronary artery