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Sensitivity and subgroups analysis based on ECG.
| Group | No. of studies | No. of participants | OR | 95% CI | Z | P(effect) | I2 | χ2 | P(het) | |
|---|---|---|---|---|---|---|---|---|---|---|
| M score | ≤3 | 3 | 314 | 3.47 | 2.08, 5.80 | 4.74 | <0.00001 | 0% | 0.95 | 0.62 |
| >3 | 4 | 286 | 3.35 | 1.88, 5.96 | 4.11 | <0.0001 | 0% | 0.25 | 0.97 | |
| Sample Size | ≤70 | 2 | 162 | 2.98 | 1.48, 6.01 | 3.05 | 0.002 | 0% | 0.07 | 0.79 |
| >70 | 5 | 438 | 3.62 | 2.28, 5.72 | 5.49 | <0.00001 | 0% | 0.94 | 0.92 | |
| Publication year | ≤2008 | 5 | 416 | 3.09 | 1.97, 4.85 | 4.91 | <0.00001 | 0% | 0.36 | 0.99 |
| >2008 | 2 | 184 | 4.41 | 2.11, 9.23 | 3.94 | <0.0001 | 0% | 0.21 | 0.65 |
