Although more and more people are living longer with colorectal cancer, new research has found that black people with the disease aren't living as long as whites. In an analysis of more than 14,000 patients with stage 2 and 3 colorectal cancer who had surgery to remove tumors, followed by treatment to prevent recurrence, the 1,218 African-American patients had a lower five-year survival rate than their white counterparts, according to researchers, led by Greg Yothers of the National Surgical Adjuvant Breast and Bowel Project Biostatistical Center in Pittsburgh. Five years after diagnosis, 72.8 percent of white patients survived cancer, but…