Figure. Cumulative Incidence of Hospitalization for Bowel Obstruction Over Time.
Cumulative incidence of hospitalization for bowel obstruction over time in the baseline cohort of 12 553 patients with stage IV colon cancer in the Surveillance, Epidemiology, and End Results and Medicare claims linked databases for January 1, 1991, through December 31, 2005, stratified by tumor histological type. For reference, the median survival of each group is given. We found no significant difference in survival experience by histological type (P = .29) in a multivariable model of survival since the cancer diagnosis that included age at and year of diagnosis, sex, marital status, patient comorbidity score, primary tumor surgery, chemotherapy after diagnosis, tumor site and grade, and lymph node status. IQR indicates interquartile range.
