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.
For example, in a clinical trial with survival time as the outcome, if the hazard ratio is 0.5 comparing participants on a treatment to those on placebo, this suggests a 50% reduction in the hazard (risk of failure assuming the person survived to a certain point) in the treatment group as compared to the placebo.hese estimates of survival probabilities at specific times and the median survival time are point estimates and should be interpreted as such. There are formulas to produce standard errors and confidence interval estimates of survival probabilities that can be generated with many statistical computing packages.