Bladder carcinoma in situ (CIS) in Australia: A rising incidence for an under-reported malignancy

Abstract

Objectives: • To investigate the incidence of carcinoma in situ (CIS) in Australia and examine implications for its diagnosis and management, as CIS of the urinary bladder is a non-reportable disease in Australia. Methods: • Analysis of annual hospitalisation data using Australian Institute of Health and Welfare (AIHW) datasets showed an increase in CIS from 2001 onwards. • To determine whether the increase seen with AIHW data represented a true increase in the rates offices, patient level data was examined using the Centre for Health record linkage (CHeReL) datasets. Results: • CHeReL linked data of 13 790 males and 5902 females, calculated the average incidence of CIS to be 20.9 per 100 00..