Overall, the most frequent result was low CXCL10 levels (356 of 713; 50%), followed by biopsy indicated (169 of 713; 24%), BKPyV replication as confounder (101 of 713; 14%), and UTI as confounder (67 of 713; 9%). The gene discussed is CXCL10; the disease is bacterial urinary tract infection.