“In the multivariable analysis for surgery-free survival, previously documented acute anastomotic leak (OR:3.5, 95%CI: 1.2-10.4), toxic megacolon (….2) were risk factors; and a longer interval between NKSis (OR: 0.9, 95%CI: 0.9-0.99), and concurrent use of dextrose … doxycycline ….”