The results of a clinical trial can be displayed as a 2´2 table:
|
|
Event (‘Success’) |
No event (‘Fail’) |
Total |
|
Experimental intervention |
SE |
FE |
NE |
|
Control intervention |
SC |
FE |
NC |
where SE, SC, FC and FC are the numbers of participants with each outcome (‘S’ or ‘F’) in each group (‘E’ or ‘C’). The following summary statistics can be calculated:
