Your-Doctor Multiple Choice Questions (MCQ)

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Category: Urology--->Statistics, Research and Governance
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Question 1#Print Question

Which one of the following study designs would be best suited to assess the incidence of secondary pelvic malignancy in patients receiving external beam radiotherapy for prostate cancer?

a. Observational study
b. Randomised controlled study
c. Case-control study
d. Cohort study
e. Cross-sectional study

Question 2#Print Question

In a Kaplan–Meier curve, which term describes removing subjects from the survival analysis who have not completed follow-up at the designated time point?

a. Missing data
b. Listwise deletion
c. Intention to treat
d. Censoring
e. Rounding

Question 3#Print Question

In a non-randomised controlled study evaluating the hypothesis that laparoscopic nephrectomy, as compared with open nephrectomy, reduces the length of hospital stay; the null hypothesis was inappropriately accepted. This is known as?

a. Type I error
b. False positive error
c. Power of a study
d. Publication bias
e. Type II error

Question 4#Print Question

A controlled study, which sequentially allocates consecutive patients to either monopolar TURP or HoLEP to compare short-term outcomes between the two treatment modalities, provides which level of evidence?

a. Level 1
b. Level 2
c. Level 3
d. Level 4
e. Level 5

Question 5#Print Question

In a study evaluating medical therapy for lower urinary tract symptoms, men are randomly allocated to 5-alpha-reductase inhibitor (n = 100) or placebo (n = 100) and subsequently monitored for progression to an episode of acute urinary retention (AUR). In the placebo arm 25 men developed AUR compared with 20 in the 5ARI arm. What is the probability of progressing to AUR in those taking the 5ARI?

a. 0.2
b. 5%
c. 1/4
d. 0.5
e. 25%

Category: Urology--->Statistics, Research and Governance
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