To evaluate whether CSNK2β could be a prognostic factor for breast cancer patients, we examined mRNA expression status of CSNK2β in a large cohort of datasets containing 3951 breast cancer patients with online KM-Plotter software (http://kmplot.com/analysis) (Györffy et al., 2010[20]) and analyzed the correlation between CSNK2β expression and patient survival. The gene discussed is CSNK2B; the disease is breast cancer.