Julie Morris, Head of Medical Statistics at Manchester University and one of the editors of the BMJ gave a tutorial on how to criticise a paper with only 15 minutes to prepare.
This has come a few times in the OSCE, so you need a plan and some idea of technique.
Julie gives a good idea of how to go about this.
I have also written a few thoughts.
Send me what you come up with and I'll send my version.
You should then be well prepared.
We then had a roleplay about basic statistics.
The questions asked were:
1. what
is the range?
2. what
is the mean?
3. what
is the median?
4. what
is the mode?
5. how
are they related if the distribution is normal?
6. what
is a normal distribution?
7. what
terms apply to a distribution curve if the tail on the right extends further
than that on the left? It is asymmetric,
no longer normally-distributed and is positively skewed.
8. what
is is the interquartile range?
9. what
is the standard deviation?
10. what
is the standard error?
11. what
percentage of results lie within 1 standard deviation of the mean if the
distribution in normal?
12. what
percentage of results lie within 2 standard deviation of the mean if the
distribution in normal?
13. what
percentage of results lie within 3 standard deviation of the mean if the
distribution in normal?
14. what
is the null hypothesis?
15. if
we reject the null hypothesis, what are we left with?
16. what
is a type I error?
17. what
is a type II error?
18. what
is the use of “non-inferiority” in a trial?
19. when
might “non-inferiority” be useful?
20. what
is the confidence interval in relation to a value?
21. what
is a phase 1 clinical trial?
22. what
is a phase 2 clinical trial?
23. what
is a phase 3 clinical trial?
24. what
is a phase 4 clinical trial?
25. what
is “intention to treat” and why is it important?
26. what
is the point in living if I have to know all this stuff?
I only wrote this yesterday afternoon, so there are a few bits to add.
Send me your answers and I'll send my version - I hope to get time to write this in the next day or two.
We also discussed Cochrane as this has been asked in the exam.
The questions asked were:
1. What kind of
organisation is the Cochrane Collaboration?
2. What is its
overall structure?
3. Where does it
get its funding?
4. What are the
components of the Cochrane logo?
5.What does the
Collaboration do?
6. Why is it
called “Cochrane”?
7. Explain the
forest plot you were given.
The Forest plot can be found here:
It is similar to the one used in the Cochrane logo.
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