Pancreatitis is a disease caused by inflammation of the pancreas. The pancreas is a small fleshy organ located between the stomach and small intestine. The pancreas has many functions related to digestion and the regulation of blood sugar levels. Pancreatitis is a disease caused by inflammation of the pancreas..
causes as censoring events, the concept of relative survival was developed by comparing the observed survival probability of a group of cancer patients with the survival of a âsimilarâ cancer-free group. Relative survival is defined as the ratio of the observed survival (all cause survival) of a cohort of cancer patients to the expected survival of a comparable set of cancer free individuals.
The increase in median overall survival time was minimal from 1990 to 2003 (from 8 to 9 months), but survival rates rose among patients diagnosed in 2004 and 2005 (to 11 months). The 5-year overall survival rate also significantly increased, beginning in 1998, but more recent follow-up data are not yet available.