TNNI3 and intracranial hemorrhage: It was found that cTnI was significantly raised in patients with a brain hemorrhage (weighted mean difference (WMD) = 1.57, 95% confidence interval (CI) = 0.61–2.54, p = 0.001, I2 = 84%, p-value of heterogeneity = 0.01), while there was no significant difference in cTnI between patients with ischemic stroke and a control group in one study (Iltumur et al., 2006 [10]) (WMD = 20.00, 95% CI = −2.39–42.39, p = 0.08) (Figure 2).