Which of the following is true regarding oral and pharyngeal cancer?

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The incidence has been declining in men since 1975 and in women since 1980,although recent studies have shown that the incidence is increasing for cancers related to HPV infection.Whereas African American and white men have 17.2 and 15.7 new cases of oral and pharyngeal cancers per 100,000 per year,respectively,Asians or Pacific Islanders,American Indian,Alaskan Natives,and Hispanics have 10.9,9.7,and 9.2 new cases per year,respectively,according to the Surveillance,Epidemiology,and End Results Program,2008.An estimated 7,880 deaths from oral and pharynx cancer are expected in 2010.The National Cancer Institute reported that oral cancer survival rates increased approximately 15% from the mid-1960s until 2003.

Which of the Following Is True Regarding Oral and Pharyngeal