Table 4 Statistical results of this meta-analysis regarding ectopic bronchial arteries (BAs). LCI lower confidence interval, HCI higher confidence interval, Q Cochran’s Q.

From: The complex anatomy of the bronchial arteries: a meta-analysis with potential implications for thoracic surgery and hemoptysis treatment

Category

N

Pooled prevalence

LCI

HCI

Q

I2

Prevalence of ectopic BAs

Presence of at least one ectopic BA

1289

37.80%

25.51%

50.91%

106.71

94.38

Presence of at least one ectopic BA in females

149

29.68%

21.36%

38.73%

2.79

28.37

Presence of at least one ectopic BA in males

437

30.85%

26.22%

35.67%

2.37

15.66

Occurrence of the ectopic BAs in respect to patients’ side

Prevalence of occurrence of ectopic BA on the right side

472

51.43%

41.00%

61.79%

20.71

71.03

Prevalence of occurrence of ectopic BA on the left side

472

49.20%

38.88%

59.56%

20.47

70.69

Origin of the ectopic BAs

Aortic arch

494

70.60%

57.61%

82.13%

52.92

82.99

Lower descending aorta

494

12.39%

3.69%

24.65%

72.26

87.55

Right subclavian artery

494

4.25%

2.30%

6.73%

10.70

15.86

Left subclavian artery

494

3.87%

2.30%

5.80%

9.12

1.33

Right internal throacic artery

494

2.49%

0.88%

4.80%

12.24

26.45

Left internal thoracic artery

494

2.14%

1.03%

3.62%

4.24

0.00

Left thyrocervical trunk

494

1.78%

0.78%

3.16%

3.29

0.00

Right thyrocervical trunk

494

1.66%

0.15%

4.34%

17.31

48.02

Brachocephalic trunk

494

1.24%

0.00%

3.70%

17.56

48.74

Ascending Aorta

494

0.69%

0.12%

1.66%

3.26

0.00

Left common carotid artery

494

0.52%

0.04%

1.39%

2.74

0.00