1. Admission Patterns for Danish ESRD Patients 1990-2003 DNS National Register and National Patient Register merged 9317 patients 232,760 admissions 167,217 admissions after ESRD Average admission duration 6.7 days 3081 hospital years TUS classifications: HD, PD, Transplantation 60-day collapsing rule for dialysis courses

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3. Temporal Changes in Diagnosis Registration ICD-10 1994 DRGca. 2001 Medical ”Fashions” Illogical Codes Hyperparathyreoidismus secundariusE21.1 Hyperparathyreoidismus non specE21.3 Osteodystrophia renalisN25.0 Hyperparathyreoidismus renalisN25.8 Changes in Admission Practice Late registration (>10 months)

4. ESRD Beds All ESRD

5. Admission Number All ESRD

6. Admission Days All ESRD

7. Admission Age

8. Admission Days: Therapy

9. Admission Days: Age

10. Admission Duration: Age

11. Admission Number: Therapy Vintage RRT Start>1989

12. Admission Days: Therapy Vintage RRT Start>1989

13. Admission No.: HD Therapy Number RRT Start>1989

14. Admission Days: HD Therapy Number RRT Start>1989

15. Admission No.: PD Therapy Number RRT Start>1989

16. Admission Days: PD Therapy Number RRT Start>1989

17. Admission Number: Renal Diagnosis RRT Start>1989

18. Admission Days: Renal Diagnosis RRT Start>1989

19. ICD-10 Dialysis Only

20. Fracture Incidence

21. Dialysis Only Year Admsission Days/Year

22. Dialysis Only

25. Previous Year Admission and Mortality

26. Mortality Risk at ESRD Increased Risk in percent (Confidence Interval) Significance Previous year admissions (weeks) 4.3 (3.7-4.9)<0.0001 Female1.9 (-5 to +8.6)NS Age (years)5.3 (5.1-5.6)<0.0001 Nephrosclerosis19 (7.1-32)<0.002 Other systemic renal disease (primarily DM) 69 (58-82)<0.0001