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Results of subgroup/exploratory analyses
| Subgroup/Method | Incidence (%) | 95% Confidence interval | I2 |
|---|---|---|---|
| Moderate-Low risk of bias | 0.44 | 0.00-1.60 | 0% |
| Moderate-High risk of bias | 1.80 | 0.01-5.75 | 0% |
| Adding 0.5 to zero cells (primary approach) | 0.46 | 0.00-1.53 | 0% |
| Adding 0.1 to zero cells | 0.03 | 0.00-0.65 | 0% |
| No addition | <0.001 | 0.00-0.25 | 0% |
