Can composite performance measures predict survival of patients with colorectal cancer?

Figure 1 Flow chart of the study design (modified from Chung et al[1], 2010 and Chung et al[18], 2013). ¹Including 3 pre-treatment measures, 16 treatment measures, and 6 monitor measures (Chung, 2010); ²Meetings were held on September 4 and October 2, 2009 at the College of Public Health, National Taiwan University; ³Including 2 pre-treatment measures, 6 treatment measures, and 3 follow-up measures (Chung, 2013); ⁴Questionnaire was mailed on October 25, 2009 and completed as of November 20, 2009 (Chung, 2013). PCA: Principal component analysis; AHP: Analytic hierarchy process.

Figure 2 Enrollment of colorectal patients. TCDB: Taiwan cancer database.