Table 6. Assessment of publication bias using Egger’s test.
CI: confidence interval
[15]
| Parameter | Estimate | Std. error | 95% CI-lower limit | 95% CI-upper limit |
| 4.34 | 2.08 | -0.76 | 9.44 | |
| Slope | -2.29 | 0.47 | -3.45 | -1.13 |
| t-value | 2.08 | |||
| p-value | 0.092 | |||
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