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Hypothetical Example: Setting
Consider survival with a particular treatment used
in renal dialysis patients
•Extract
data from registry of dialysis patients
–To
ensure quality, only use data after 1995
•Incident
cases in 1995: Follow-up 1995 – 2002 (8 years)
•Prevalent
cases in 1995: Data from 1995 - 2002
»Incident
in 1994: Information about 2nd – 9th year
»Incident
in 1993: Information about 3rd – 10th year
»…
»Incident
in 1988: Information about 8th – 15th year