| CDE ID | CDE Description | | * 421 | EDRN Participant ID (Go To: 4556) |
| * 4556 | Date of contact (DD/MM/YYYY): (Go To: 2176) |
| * 2176 | Visit code (Go To: 423) |
| | | Permissible Values (value): | Y1V06 (20) |
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| * 423 | EDRN Protocol ID (Go To: 422) |
| * 422 | EDRN Site ID (Go To: 929) |
| * 929 | EDRN Staff ID of the person who collected the data: (Go To: 4557) |
| * 4557 | Serum creatinine date (DD/MM/YYYY): (Go To: 1977) |
| * 1977 | Serum creatinine concentration (mg/dL): (Go To: 1097) |
| 1097 | Comments (do not include any participant identifiers) (Go To: End of Form) |