Table 1 Inclusion and exclusion criteria of CKD cases

A. Cases that reported CKD-related diagnosis codes (primary and secondary) as specified in Supplementary Table 1

B. Dialysis-related procedures codes as specified in Supplementary Table 2

C. Case type: medical cases.

1. Kidney transplant

2. Renal failure codes other than those specified in Supplementary Table 1 (e.g. Acute renal failure)

3. Surgical and other type of cases except those that had kidney-related procedure codes

4. Cases that had surgical procedures for other organs/systems mentioned.

5. Acute emergencies (myocardial infarction, acute thrombosis/or bleeding, acute infections or reactivated chronic infections)

6. Acts of violence, trauma, poisoning