Pubh 6035 final answers Study guides, Class notes & Summaries

1. Question: What were the total person-months at risk during the study? 2. Question: A cohort study of coffee drinking and anxiety was conducted at a university campus. There were a total of 30,000 freshmen who participated. 10,000 were coffee drinkers and 20,000 were not. Of the coffee drinkers, 500 developed anxiety during the 4-year follow-up period. Of the non-coffee drinkers, 200 developed anxiety during the same time period. Assume that no one in the population died or was lost during th...

Question: If the incidence rate of a very serious disease is 25/100,000 person-years and the prevalence of this disease in the population is 75/100,000, what is the average survival time of individuals who contract this disease? Question: A report of a clinical trial of a new drug versus a placebo … that the new drug gave a higher proportion of successes than did the placebo (70% versus 40%). The report … with the statement that the p value … with this finding was equal to 0.05. This mean...