Demographic data for participants from IUSM and HOG study.

CRC: colorectal cancer; LC: Lung cancer; BC: Bladder cancer; PC: Pancreatic cancer; SD, standard deviation; HOG: Hoosier Oncology Group.
In the HOG set: • For gender, the overall P value is 0.0339. • For Age, the overall P value is <0.0001. • For race, the overall P value is 0.2352. Since it was not significant, it was not recommended to perform pair-wise comparisons. Nonetheless, P values for pair-wise comparisons are given to be consistent with the other two variables. All pair-wise comparisons are against healthy controls.