Table 3 The meta-analysis results of three scoring systems (AECG as the diagnostic criteria).

   Pooled Sensitivity (95% CI)

0.75 (0.71–0.79)

0.84 (0.81–0.87)

0.75 (0.70–0.80)

   Chi-square (Degree of Freedom)

74.65 (6)

13.74 (5)

32.83 (3)

   P Value

0.0000

0.0174

0.0000

   Inconsistency (I²)

92.0%

63.6%

90.9%

   Pooled Specificity (95% CI)

0.93 (0.90–0.95)

0.88 (0.85–0.91)

0.95 (0.91–0.97)

   Chi-square (Degree of Freedom)

21.04 (6)

14.47 (5)

18.69 (3)

   P Value

0.0018

0.0129

0.0003

   Inconsistency (I²)

71.5%

65.4%

83.9%

   Pooled Diagnostic Odds Ratio (95% CI)

71.26 (42.29–120.09)

46.3 (19.95–107.44)

66.07 (33.73–129.42)

   Cochran-Q (Degree of Freedom)

4.25 (6)

19.07 (5)

2.11 (3)

   P Value

0.6430

0.0019

0.5507

   Inconsistency (I²)

0.0%

73.8%

0.0%

   Tau-squared

0.0000

0.7812

0.0000