Clinical, CTC and FDG PET-CT Patient Characteristics by Center.

SUMC = Stanford University Medical Center; UCSD =  University of California San Diego Moores Cancer Center, VAPAHCS = Veterans Affairs Health Palo Alto Health Care System; Billings = Billings Medical Center; NSCLC =  Non-small Cell Lung Cancer; AJCC = American Joint Committee on Cancer; 10 M WBC = 10 Million White Blood Cells. SUV = Standardized Uptake Value; PVC = Partial Volume Correction. DICOM = Digital Imaging and Communication in Medicine.
*Variables are shown as median with interquartile range (IQR) for continuous variables and number with percent (%) for categorical or ordinal variables.
†Significant differences (p-value <0.05) by center.
§As measured on PET-VCAR, n = 62 (see methods).
¶Range provided instead of IQR.
∧n = 62.
≈Clinically retrieved value was used for this calculation when extracted data (from PET-VCAR) was not available.