Answer to Question #191153 in Bioinformatics for chrinovain kankond

Question

1.     Look at the table (right) showing survival of a group of 20 pancreatic cancer patients treated with a new drug X, compared to a control group of 20 pancreatic cancer patients who received the standard treatment and a placebo. The trial lasted for five years, which started on day 0; “lost” means that the person was lost to follow-up and did not return to the study. After 5 years everyone who was not lost to follow-up or died was known to be still alive. (20)

Answer 1

The probability of surviving 5 years in the control group =0.76