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. Author manuscript; available in PMC: 2018 Mar 14.
Published in final edited form as: Cancer Epidemiol Biomarkers Prev. 2016 Dec 21;26(5):736–742. doi: 10.1158/1055-9965.EPI-16-0702

Figure 1.

Figure 1

Age-standardized colorectal cancer death rates (ASDR) among ages 50–74 years by county-level educational attainment* and sex, all races combined (2008–2012). NOTE: County-level educational attainment was categorized from high to low educational attainment according to the percentage of residents ages ≥25 years graduated college as follows: Q1, ≥36.19%; Q2, 29.66%–36.18%; Q3, 25.91%–29.65; Q4: 18.88%–25.90%; and Q5: <18.88%.