In the sensitivity analyses, the
difference in hemorrhage between patients with
aspirin therapy and those and without aspirin therapy
became statistically nonsignificant when the study of
Lu et al.28 was excluded (aspirin vs. no aspirin: RR ¼
1.99; 95% CI: 0.914.36; P ¼ .08; I2 ¼ 0%)
(Figure 3B). Similar results were observed when other
studies were excluded.