Figure 2

Baseline characteristics associated with KRAS testing. From multivariate logistic regression modeling among all eligible patients (A) and among KRAS-tested patients, those tested at time of mCRC diagnosis (B). Reference groups: gender-male, race-Caucasian, insurance-Medicaid, location of lesions-both, histology grade-high/moderately differentiated, ECOG/KPS score-(0-1/80-100), mCRC diagnosis-2008 or earlier. Abbreviations: ECOG = Eastern Cooperative Oncology Group; KPS = Karnofsky performance score; mCRC = metastatic colorectal cancer; Q = quarter.