Relative risk for association between HER2 status and mortality in 2 years.
| Studies | N (n) | Q | Relative risk (95% CI) |
|---|---|---|---|
| All | 6 (321) | 15.69 | 1.78 (0.90-3.48)1 |
| Scoring for membranous staining only | 5 (296) | 14.20 | 1.93 (0.96-3.87)2 |
| 25% IHC cutoff only | 4 (215) | 1.41 | 2.81 (1.91-4.13)3 |
↵1 P values were < 0.05 for between-study heterogeneity, relative risk was estimated with random effects models.
↵2 P values were < 0.05 for between-study heterogeneity, relative risk was estimated with random effects models.
↵3 P values were >0.05 for between-study heterogeneity, Relative risk was estimated with fixed effects models. Abbreviations: CI, confidence intervals.