Table 1.
Algorithm steps
| Step | Required match between the REIN and SNDS datasets | |
|---|---|---|
| Exact | Partial | |
| 1 | Age, sex, postcode, center IDa, deathb, DTc | |
| 2 | Age, sex, postcode, center ID, death | DT (− 1 month) |
| 3 | Age, sex, postcode, death, DT | center ID (department) |
| 4 | Age, sex, postcode, death |
center ID (department) DT (−1 month) |
| 5 | Age, sex, center ID, death, DT | postcode (department) |
| 6 | Age, sex, center ID, death |
postcode (department) DT (−1 month) |
| 7 | Age, sex, death, DT |
center ID (department) postcode (department) |
| 8 | Age, sex, death |
center ID (department) postcode (department) DT (− 1 month) |
| 9–12 | Repetition of steps 2, 4, 6, 8 | DT (−2 months) |
| 13 | Age, sex, center ID, death, DT | |
| 14 | Age, sex, center ID, death | DT (−1 month) |
| 15 | Age, sex, death, DT | center ID (department) |
| 16 | Age, sex, death, DT |
DT (−1 month) center ID (department) |
| 17–24 | Repetition of steps 1–8 | age (−1 year) |
aCenter ID = Geographical localization number, and then legal entity affiliation number
bDeath = 3 scenarios: death in both datasets, no death in both datasets, and death recorded only in the REIN dataset
cDT = Date of treatment (month/year), renal transplantation during the first phase procedure, dialysis during the second procedure phase