Table 3.
Results of meta-regression for cardiac arrhythmia
| Estimate | B | SE | Z-value | 95% CI | P value | |
|---|---|---|---|---|---|---|
| Intercept | -5.43 | 0.98 | -5.5307 | -7.35 to -3.50 | <0.001 | |
| Country | USA | -0.94 | 0.28 | -3.3093 | -1.50 to -0.39 | 0.0009 |
| Italy | -1.14 | 0.33 | -3.4644 | -1.79 to -0.50 | 0.0005 | |
| Germany | 0.63 | 0.51 | 1.2208 | -0.38 to 1.63 | 0.222 | |
| Others | -0.99 | 0.31 | -3.1178 | -1.61 to -0.37 | 0.001 | |
| Multicenter | -0.57 | 0.38 | -1.4800 | -1.33 to 0.18 | 0.138 | |
| Mean age (years) | 0.03 | 0.01 | 2.2105 | 0.00 to 0.06 | 0.027 | |
| Sex ratio | 1.04 | 0.19 | 5.3994 | 0.66 to 1.41 | <0.001 | |
B: Regression coefficient; SE: Standard error; CI: Confidence interval; Amount of heterogeneity accounted for (R2=15.63%); Estimated amount of residual heterogeneity (tau^2=23.37); Test for residual heterogeneity based on Likelihood-ratio test (I2=89.219, P<0.001); Test of moderators based on Chi square test (QM=40.59, P=0.20)