Types of studies Flashcards
1
Q
What is a n-of-1 randomised trial? (1)
A
RCT on 1 person
2
Q
How does a n-of-1 randomised trial work? (2)
A
Randomised time periods with 1 or more Rx.
Average diffs compared
3
Q
What is a cohort? (1)
A
A group with specific characteristics
4
Q
What is a case-control study? (3)
A
Observational
Pts already having the disease are matched with ones who don’t.
Risk factor differences are analysed.
5
Q
What is an interrupted time series? (2)
A
- Measures taken on the same population at multi time points
- Can do before/after (weaker than control)
6
Q
2 or more single arm study?
A
Data from 2+ studies comparison
7
Q
Study of diagnostic yield?
A
No ref standard, just identify people using index test…
8
Q
Diagnostic (test) accuracy?
A
Index compared to ref standard
