-1
$\begingroup$

In a prospective cohort study three hundred thirty-seven patients had HCV RNA (chronic infection), 91 had HCV antibodies and no HCV RNA (cleared infection), and 1957 had no HCV markers. Median CD4(+)T-cell counts/µL were 200(chronic), 193(cleared) and 175(no markers). There were 558 deaths. At a median follow-up of 6.1 years, patients without HCV markers had a 50% decreased risk of mortality compared with patients with chronic HCV. What would be the value associated with the measure of effect interpreted from the narrative?

  • RR=1.5
  • RR=0.5
  • OR=1.5
  • OR=0.5
$\endgroup$

closed as off-topic by whuber Jun 12 at 17:07

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "Self-study questions (including textbook exercises, old exam papers, and homework) that seek to understand the concepts are welcome, but those that demand a solution need to indicate clearly at what step help or advice are needed. For help writing a good self-study question, please visit the meta pages." – whuber
If this question can be reworded to fit the rules in the help center, please edit the question.

  • $\begingroup$ Please add the self-study tag and explain what you think the answer might be and why. We are not here to do your homework for you. $\endgroup$ – StatsStudent Jun 12 at 16:25

Browse other questions tagged or ask your own question.