Table S1 - Regional Variations in Esophageal Cancer Rates by Census Region in the United States, 1999–2008

NHIS 2007: Prevalence of Major Risk Factors of EA and ESCC. Our supplemental data relied on the National Health Interview Surveys (NHIS), which conducts nationally representative surveys of the health of civilian, non-institutionalized U.S. population. Using data from the 2007 NHIS, we calculated census region prevalence of reflux, obesity, ever-smoked cigarettes, and moderate to heavy alcohol consumption among whites aged 45–84 years, stratified by sex and census region. (DOC)