Persistent Asymptomatic Isolated Microscopic Hematuria in Adolescents is not Associated With an Increased Risk for Early Onset Urinary Tract Cancer.

Objective: To elucidate the association between adolescent microscopic hematuria and early onset urothelial carcinoma and renal cell carcinoma.

Methods: Nationwide, population-based, retrospective cohort study using medical data of 970,366 adolescents aged 16 through 19 years (58.6% male) examined for fitness for military service between 1980 and 1997.