Admission Patterns for Danish ESRD Patients 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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Temporal Changes in Diagnosis Registration ICD DRGca 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)

ESRD Beds All ESRD

Admission Number All ESRD

Admission Days All ESRD

Admission Age

Admission Days: Therapy

Admission Days: Age

Admission Duration: Age

Admission Number: Therapy Vintage RRT Start>1989

Admission Days: Therapy Vintage RRT Start>1989

Admission No.: HD Therapy Number RRT Start>1989

Admission Days: HD Therapy Number RRT Start>1989

Admission No.: PD Therapy Number RRT Start>1989

Admission Days: PD Therapy Number RRT Start>1989

Admission Number: Renal Diagnosis RRT Start>1989

Admission Days: Renal Diagnosis RRT Start>1989

ICD-10 Dialysis Only

Fracture Incidence

Dialysis Only Year Admsission Days/Year

Dialysis Only

Previous Year Admission and Mortality

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