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Cancer is a not just one disease; it is many different diseases. There are more than 100 different types of cancer. With more than one million people newly diagnosed each year, cancer is one of the most common chronic diseases in the United States. It is also the second leading cause of death among Americans.  It is estimated that a man has a 1 in 2 chance of developing cancer during his lifetime, and a woman’s lifetime probability is a little more than 1 in 3. Nationally, prostate, breast (female), lung and colorectal cancers are the most common forms of cancer. 

The Ohio Cancer Incidence Surveillance System (OCISS) collects and analyzes cancer data of all Ohio residences. The law requires that all Ohio medical care providers report all cancer diagnosed and/or treated in Ohio to OCISS. The data provided to this system is an invaluable resource to public health professionals and medical researchers as they develop, implement, and promote cancer prevention and control activities.