The cutoff of 18 months is arbitrary. ln a larger study, the investigator wants to use a cutoff (x) so that the probability of surviving for at least x months is < 1%, if the treatment has no benefit. What is the smallest integer value of x that satisfies this criterion?

Cancer
Mesothelioma is an asbestos-related neoplasm that is resistant to current therapies and is associated with poor prognosis. The average survival time after diagnosis is 12 months.