Figure 2From: Inverse association of colorectal cancer prevalence to serum levels of perfluorooctane sulfonate (PFOS) and perfluorooctanoate (PFOA) in a large Appalachian population Association of serum PFOA and PFOS levels to likelihood of colorectal cancer diagnosis. a. All eligible participants (N=208 CRC cases, 47,151 controls). b. Sample restricted to those with PFOA serum values ≤ 20 ng/mL (N=84 CRC cases, 19,117 controls). c. All eligible participants (N=208 CRC cases, 47,151 controls). d. Sample restricted to those with PFOS serum values ≤ 20 ng/mL (N=118 CRC Cases, 23,287 Controls).Back to article page