Furthermore, we analyzed the serum cTn I and cTn T levels in myocardial infarction, and no significant difference was found for serum cTn I (WMD = 48.68, 95% CI = −1.16 to 98.52, p = 0.06; I2 = 96%, p < 0.00001), but there was a statistically significant difference for serum cTn T (WMD = 32.27, 95% CI = 1.48–63.06, p = 0.04; I2 = 94%, p < 0.00001) (Figure 4; Figure 5). Here, TNNI3 is linked to myocardial infarction.