Question

please answer E)

graph is from a recent article that looked at differences in characteristics between cannabis users and non-drug users of patients at their first hospitalization due to psychotic symptoms. The authors were interested if current cannabis use had an increased risk for re- hospitalization. The outcome of interest was time in between first to second admission for psychotic symptoms. The authors report on a cohort of 318 patients of which 106 (33.3%) were cannabis users. (16 points) -No-drugs use Cennabis users u) 0.2 0. Time [Years] What type of analysis/method yields the plot above? (2 points) a. b. The authors report a p-value for the plot of 0.14. What test was used to provide this p-value? (2 points) i. ii. Interpret the results of the plot including the p-value. (4 points) What is the median survival time for cannabis users and non-drug users? (4 points) c. d. Explain what a censored observation is in the context of the outcome of interest and the setting of this study (do not just provide a general definition of censoring). (2 points) t type of analysis could be used to incorporate other variables into the model e. Wha besides just use of cannabis or not? (2 points)

Answer 1

We could incorporate usage or non-usage of other drugs and Alcohol as such people have an affinity to use other drugs. This would help us to understand the main and interaction effects of these drugs on the risk or re-hospitalisation.