'CLEAN' DATA | Â | Â | 'DIRTY' DATA |
---|---|---|---|
Randomisation | Â | Â | Randomisation |
I | Â | Â | I |
Surgery | Â | Â | Surgery |
I | Â | Â | I |
6 week follow-up visit | TIME GAP | TIME GAP | 6 week follow-up visit |
I | Â | Â | I |
Data received | Â | Â | Data received |
I | Â | Â | I |
Data entered into a database | Â | Â | Data sent back for correction |
 |  |  | I |
 |  |  | Corrected data received |
 |  |  | I |
 |  |  | Data entered into a database |