Changing Trends in Bladder Cancer Epidemiology in the Israeli Population: 1996-2016.

BACKGROUND

There is a rising incidence of bladder cancer (BC) in Israel and worldwide. BC is currently the fourth most common cancer in Israeli males. There are large variations in the incidence of BC observed in different populations, both in Israel and worldwide.

OBJECTIVES

To characterize the time trends and epidemiologic profile of BC in Israel regarding various population demographics.

METHODS

All cases of BC reported to the Israeli National Cancer Registry between 1996 and 2016 were included. We calculated age standardized rates for BC. Joinpoint regression analysis was used to study trends in incidence as expressed by annual percent change (APC) in incidence.

RESULTS

Between 1996 and 2016, 28,953 cases of BC were diagnosed in Israel. BC rates in Jewish males peaked in 2006 and subsequently declined (APC = -1.69, P < 0.05). Between 1996 and 2011, in-situ BC rates increased for both Jewish (APC = 28.2, P < 0.05) and Arab males (APC = 16.76, P < 0.05). Invasive BC incidence in Jewish males declined from 2005 to 2016 (APC = -7.6, P< 0.05) as well as in Arab males from 2006 to 2011 (APC = -12.0, P < 0.05).

CONCLUSIONS

In the past two decades, in situ BC rates have risen, while invasive BC rates have decreased. BC epidemiology mirrors lung cancer trends, which is expected as smoking is a significant risk factor for both. These trends are important to identify as they can affect clinical guidelines regarding screening in high-risk populations and health care planning.