Skip to main content

Table 1 Variables and data sources

From: Geographic disparities in late stage breast cancer incidence: results from eight states in the United States

Variables Definition Data sources
Dependent variables
 Late stage breast cancer diagnosis ages 40 and above Age-adjusted incidence rates of late stage breast cancer in females, ages 40 and above, per 100,000 women diagnosed from 2006 to 2010 SEER http://www.seer.cancer.gov/data
Predictor variables
 Density of mammography facilities per person Number of FDA approved mammography facilities in 2010, normalized by the total population in 2010 FDA http://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfmqsa/mqsa.cfm
 % Screening Percent of females, ages 40 and above that had mammography in the past 2 years; estimates for the period 2000–2003 Small Area Estimates (SAE) sae.cancer.gov
 Density of obstetrics and gynecology specialists per person Number of OBGYN specialists in 2010, normalized by the total population in 2010 HRSA Area Resource File (ARF) http://arf.hrsa.gov/
 % Urban households Percent urban households (including urbanized areas and clusters) in 2010 US Census Bureau2010 http://www.census.gov/2010census/
 % Black Percent of total population that is Black in 2010 US Census Bureau 2010 http://www.census.gov/2010census/
 Median household income Median household Income in 2010 US Census Bureau 2010 http://www.census.gov/2010census/
 % English litreracy Percentage of population 5 years and older that speaks English “very well” in 2010 US Census Bureau 2010 http://www.census.gov/2010census/
 % With college degree Percent of total population with a Bachelor’s degree or higher in 2010 US Census Bureau 2010 http://www.census.gov/2010census/
 % With private insurance Percent of female population, ages 40+ with private insurance only in 2010 US Census Bureau 2010 http://www.census.gov/2010census/
 % Uninsured Percent of female population, ages 40+ with no health insurance coverage in 2010 US Census Bureau 2010 http://www.census.gov/2010census/