JAK1 and breast cancer: Similarly, we also found that JAK1 expression was associated with a favorable prognosis in breast cancer patients in the Kaplan-Meier plotter database, which is based on Affymetrix microarrays (Figure 2A–2C; RFS HR[95% CI] = 0.75[0.67-0.85], P = 0.0074; DMFS HR[95% CI] = 0.6[0.49-0.74], P = 0.0035; OS HR[95% CI] = 0.52[0.42-0.65], P = 0.0002).