Sensitivity analysis after each study was excluded by turns.
| Study Excluded | RR (95% CI) for Remainders | Heterogeneity | |
|---|---|---|---|
| I2, % | p | ||
| Orellana, et al20 | 1.72 (1.44–2.32) | 70 | 0.006 |
| Keller, et al21 | 1.73 (1.36–2.22) | 60 | 0.03 |
| Aras, et al22 | 1.89 (1.49–2.40) | 56 | 0.05 |
| Coskun, et al23 | 1.72 (1.41–2.09) | 62 | 0.02 |
| Maasoumi, et al24 | 1.65 (1.37–1.99) | 52 | 0.06 |
| Hari, et al25 | 1.82 (1.43–2.33) | 70 | 0.005 |
| Khnaba, et al26 | 1.87 (1.47–2.37) | 68 | 0.009 |
RR: relative risk.