As shown in Table 1, QKI expression was evident in 97.5% (157/161) of the matched adjacent kidney tissue samples, which represented a significantly higher percentage than in the QKI-positive samples of clear cell renal cell carcinoma (74.5% [120/161], χ2 = 20.99, P < 0.005). Here, QKI is linked to clear cell renal carcinoma.