As described in Table 11, though no heterogeneity could be detected, the meta-analysis illustrated that ABCB1 C3435T polymorphism was unrelated to the rate of ischemic stroke in patients treated with clopidogrel (for CT + TT vs. CC: OR, 1.03; 95% CI, 0.54 to 1.96; P = 0.93; Fig. 6). Here, ABCB1 is linked to ischemic stroke.