front
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
9
|
10
|
11
|
12
|
13
|
14
|
15
|
16
|
17
|
18
|
19
|
20
|
21
|
22
|
23
|
24
|
25
|
26
|
27
|
28
|
review
Cohort Study (Prospective)
Intervention Study
Objective
To test hypothesis regarding the causation of disease
To evaluate the efficacy of preventive or therapeutic agent or procedure
The role of investigators
To conduct observation of exposure causing the disease
To allocate the exposure to the study subjects, and observe the outcome caused by exposure
The different between cohort study and intervention study
