Subjects with chronic sarcoidosis were also likely to show persistent elevations in CXCL9 compared to those with remitting sarcoidosis; however, the difference in change of CXCL9 over time between these groups did not reach statistical significance (+7.22 pg/ml versus −5.19 pg/ml in chronic and remitting groups, respectively; p = 0.37). Here, CXCL9 is linked to sarcoidosis.