Breast cancer is the most common cancer in women and the fourth most common cause of death from cancer.

Much progress has been made in understanding the causes of breast cancer, but few options for prevention at the population level exist. Early detection by mammography has proven to lower mortality, especially for women over 50 years, but conventional mammography is unlikely to offer many new opportunities to advance the field.

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Screening detects precancerous polyps before cancer can develop, as well as early stage cancers at a time when it can be cured, and it is one of the most effective ways to prevent colorectal cancer deaths.

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In San Francisco, liver cancer is the 9th most common cancer and the 5th most deadly. SF CAN seeks to reduce new liver cancer cases and liver cancer deaths in San Francisco by 50 percent.

We will do this by reducing the impact of viral hepatitis. We will promote vaccination against hepatitis B, safe sex and clean-needle use, earlier detection of hepatitis B and C with screening blood tests, better monitoring and treatment for people infected with those diseases, and access to care for liver cancer patients.

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SF CAN aims to combat prostate cancer disparities through targeted early detection and follow-up of aggressive disease and institutional partnerships that ensure high-quality treatment citywide.

Prostate cancer is the most common cancer in men, and African American men have the highest incidence and mortality rates from the disease. Early detection of life-threatening prostate cancer is possible and can reduce mortality.

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Adult cigarette smoking is down, but tobacco use remains the leading preventable cause of cancer and cancer deaths in the U.S. Cancers linked to tobacco use make up 40 percent of all cancers diagnosed.

Coordinated action on tobacco control, especially among young adults, in low income communities, and among the homeless and people with mental illness, where smoking rates are higher than the general population, can make the highest impact.

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