As proteinuria is an established marker of an adverse outcome in patients with CKD [5], we next sought to investigate whether sThy-1 can be detected in the urine, and whether urinary sThy-1/creatinine-ratios are related to albuminuria as assessed by albumin-creatinine ratios (ACR) in patients with different stages of CKD. Here, ALB is linked to chronic kidney disease.