Table 2. Sensitivity analysis.
| Sensitivity analysis | Heterogeneity | Combined effect | ||
|---|---|---|---|---|
| I2 | tau2 | OR and 95% CI | P | |
| Including Lee J.P. study | 72% | 1.6959 | 0.144 (0.054–0.387) | 0 |
| Excluding Lee J.P. study | 28% | 0.3911 | 0.132 (0.062–0.282) | 0 |
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