CDK1 and nasopharyngeal carcinoma: An independent sample t-test of SPSS 26.0 was used to compare the IRS between the two groups, and the results indicated that the protein expression of CDK1 in NPC tissues (9.1389 ± 2.8998) was significantly higher than that in noncancerous tissues (0.7143 ± 1.0131, P < 0.05).